molded case circuit breakers, mccb miniature circuit...

Low Voltage Circuit Breakers

www.vitzrotech.com

Molded Case Circuit Breakers, MCCBMiniature Circuit Breakers, MCB

Earth Leakage Circuit Breakers, ELCB

MCCB / M

CB / ELCB

Vitzrotech Low Voltage Circuit Breakers

Contents

Features 4

Ordering information 12

Types and ratings 16

- Economic VBE type 16

- Standard VBS type 18

- High interrupting VBH type 20

- Current limiting VBL type 22

- Panel board MCCB and ELCB 24

- MCB 26

Accessories 28

Dimensions and trip curves 34

Technical information 60

2 VITZROTECH MCCB

MCCB, MCB & ELCB

3Low Voltage Circuit Breakers

MCCB

MCB & ELCB

2, 3 pole 2, 3 pole30~100AF

MCCBVBP typePanel board type MCCB

30~100AF

ELCBVLP typeEarth leakage circuit breaker

Ratings� Ampere frame size 30 to 800AF� Breaking capacity,

Icu up to 65kA at 460Vac� 2, 3 and 4-pole

Classy designs� Soft-edge front cover� Terminal cover

Various options according to mounting, size and characteristic.

4 VITZROTECH MCCB

1, 2, 3 pole 1, 2, 3 pole60AF

MCBVBK typeMiniature Circuit Breaker MCB

50~100AF

MCBVBF typePanel board type MCB

2, 3 and 4 pole series� 4 pole MCCB available

up to 800AF


30~800AF

2.5~35kA at 460Vac

VBE type Economic type MCCB

30~800AF

10~50kA at 460Vac

VBS type Standard type MCCB

[ 4 Types ]� VB series providing 4 types of MCCBs by breaking capacity.� Each type has its own color code on the name plate.

6 VITZROTECH MCCB

VITZRO low voltage breakers are designed tomeet all requirements of IEC60947-2

Ampere frame

Breaking capacity

2, 3, 4 pole

Ampere frame

Breaking capacity

2, 3, 4 pole

30~400AF

14~50kA at 460Vac

VBH type High interrupting capacity type MCCB

50~800AF

65kA at 460Vac

VBL type Current limiting type MCCB

[ Increased breaking Capacity ]� VB series providing increased breaking capacity


Ampere frame

Breaking capacity

2, 3, 4 pole

Ampere frame

Breaking capacity

2, 3, 4 pole

Unified Dimensions

Major dimensions for panel cutouts and wiring are unified up to 225AF

64mm

60mm

Depth

Depth of terminal24mm

8 VITZROTECH MCCB

22mm

Wide

Cutout in case of

using 64mm depth

Cutout

50

mm

He

igh

t

Depth 64mm Depth 60mm

22mmWide

50

mm

He

igh

t


Process for accessories installation

AXAuxiliary switch

ALAlarm switch

Terminal cover

SHTShunt trip device

UVTUnder voltage

trip device

Trip the breaker Open the front cover

Grip the auxiliary

Close the front cover

Insert it into the reserved position

AX, AL SHT, UVT

10 VITZROTECH MCCB

Front cover

[ Descriptions ]

AX, Auxiliary Switch

It gives ON/OFF signal of the breaker with a changeover contact.

AL, Alarm Switch

It gives TRIP signal of the breaker.

It does not operate when the breaker is normally opened or closed.

It consists of a changeover contact.

SHT, Shunt Trip device

It make the breaker TRIPPED when any AC or DC voltage

is applied to itself.

UVT, Under Voltage Trip device

It make the breaker TRIPPED when the control voltage disappears or falls.

AX

AL

SHT

UVT


Ordering information

12 VITZROTECH MCCB

Economic type

VBE series

Standard type

VBS series

High interrupting capacity type

VBH seriesCurrent limitingtype MCCB

VBL series

Change the Breakers, Change the Quality

13Ordering information


■MCCB

Basic name

VBVitzrotech Breaker

Type

E Economic

S Standard

H High interrupting

L Current limiting

AF

3 30AF

5 50AF

6 60AF

10 100AF

20 225AF

40 400AF

60 600AF

80 800AF

Pole

2 2 Pole

3 3 Pole

4 4 Pole

Rated current

3A 150A

5A 175A

6A 200A

10A 225A

15A 250A

20A 300A

30A 350A

40A 400A

50A 500A

60A 600A

75A 700A

100A 800A

125A

Accessory

None

AX Auxiliary Switch

AL Alarm Switch

SHT Shunt Trip

UVT Under Voltage Trip

Ordering information

14 VITZROTECH MCCB

MCB/Panel board MCCB/ELCB

Basic name


Type

F Clamp mounting

K DIN Rail mounting

AF

5 50AF

6 60AF

10 100AF

Pole

1 1 Pole

2 2 Pole

3 3 Pole

Rated current

6A

10A

15A

20A

30A

40A

50A

60A

75A

100A

Compact and miniature circuit breakers are used for panel board circuits and residential purpose to protect cables, lighting and other loads.They offer various options according to mounting, size and characteristic.

MCB …DIN Rail mountable

VBK typeMCB …Clamp mountable

VBF type


15Ordering information


Basic name


Type

PRail/Screwmountable

Type


Type


AF

3 30AF

5 50AF

10 100AF

Pole

2 2 Pole

3 3 Pole

Rated current

5A

10A

15A

20A

30A

40A

50A

60A

75A

100A

Basic name

VLVitzrotech ELCB

AF

3 30AF

5 50AF

10 100AF

Pole

2 2 Pole

3 3 Pole

Rated current

6A

10A

15A

20A

30A

40A

50A

60A

75A

100A

Residual current

15mA

30mA

100mA

ELCB …DIN Rail/Screw mountable

VLP type

Panel board MCCB …DIN Rail/Screw mountable

VBP type

16 VITZROTECH MCCB

Note : The rated currents in ( ) are available on request

Economic type MCCB

Frame size

Number of pole

Type

Rated current

Rated insulation voltage AC

Rated breaking AC 600V

capacity, Icu AC480/500V

KSC8321(Sym) AC 460V

IEC60947-2(Icu) AC 415V

Ics=0.5xIcu AC 380V

AC220/240V

DC 250V

No. of Without currentoperation cycle With current

Automatic tripping device

Dimensions(mm) a

b

c

d

Weight

Mounting

Accessory

Auxiliary switch AX

Alarm switch AL

Shunt trip SHT

Under voltage trip UVT

Terminal cover TC

Insulation barrier IB

Other information

30AF 50AF 60AF

2-pole 3-pole 2-pole 3-pole 4-pole 2-pole 3-pole 4-pole

VBE 32 VBE 33 VBE 52 VBE 53 VBE 54 VBE 62 VBE 63 VBE 64

5, 10, 15, (16), 20, (25), 30, (32)A 6, 10, 15, (16), 20, (25), 30, (32)40, 50A 60, (63)A

690V 690V 690V

- 2.5kA 2.5kA

- 5kA 5kA

2.5kA 10kA 14kA

2.5kA 10kA 14kA

2.5kA 10kA 14kA

5kA 18kA 18kA

- 2.5kA - 2.5kA -

8500 8500 8500

1500 1500 1500

Hydraulic magnetic (HM) Thermal magnetic (TM) Thermal magnetic (TM)

50 75 50 75 100 50 75 100

96 130 130

60 60 60

80 80 80

0.33kg 0.47kg 0.45kg 0.65kg 0.85kg 0.45kg 0.65kg 0.85kg

Screw Screw Screw

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34 page 36 page 36 page

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17VBE type


30~800AF

2.5~35kA

at 460Vac

Ampere frame

Breaking capacity

2, 3, 4 pole

at AC460V

at AC220V

100AF 225AF 400AF 600AF 800AF

2-pole 3-pole 4-pole * 2-pole 3-pole 4-pole * 2-pole 3-pole 4-pole * 2-pole 3-pole 4-pole * 2-pole 3-pole 4-pole

VBE 102 VBE 103 VBE 104 VBE 202 VBE 203 VBE 204 VBE 402 VBE 403 VBE 404 VBE 602 VBE 603 VBE 604 VBE 802 VBE 803 VBE 804

10, 15, (16), 20, (25), 30, (32)40, 125, 150, (160), 175250, 300, (320), 350, 400 A 500, 600, (630)A 700, 800A

50, 60, (63), 75, (80), 100A (180), 200, 225 A

690V 690V 690V 690V 690V

7.5kA 7.5kA 18kA 22kA 22kA

10kA 10kA 18kA 25kA 25kA





5kA - 10kA - 10kA - 20kA - 20kA -

8500 7000 4000 4000 4000

1500 1000 1000 1000 1000

Thermal magnetic (TM) Thermal magnetic (TM) Thermal magnetic (TM) Thermal magnetic (TM) Thermal magnetic (TM)

50 75 100 105 105 140 140 140 185 210 210 280 210 210 280

130 165 257 275 275

60 60 109 107 107

80 84 145 155 155

0.45kg 0.65kg 0.85kg 1.1kg 1.2kg 1.5kg 5.2kg 6.2kg 7.8kg 11kg 11.5kg 18.2kg 11kg 11.5kg 18.2kg

Screw Screw Screw Screw Screw

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38 page 42 page 44 page 46 page 48 page

Standard type MCCB

18 VITZROTECH MCCB

30AF 50AF 60AF

2-pole 3-pole 4-pole 2-pole 3-pole 4-pole 2-pole 3-pole 4-pole

VBS 32 VBS 33 VBS 34 VBS 52 VBS 53 VBS 54 VBS 62 VBS 63 VBS 64

6, 10, 15, (16), 20, (25), 30, (32)A 6, 10, 15, (16), 20, (25), 30, (32)40, 50A 60, (63)A

690V 690V 690V

2.5kA 5kA 5kA

5kA 7.5kA 7.5kA

10kA 14kA 14kA

10kA 14kA 14kA

10kA 14kA 14kA

18kA 25kA 25kA

2.5kA - 5kA - 25kA -

8500 8500 8500

1500 1500 1500

Thermal magnetic (TM) Thermal magnetic (TM) Thermal magnetic (TM)

50 75 100 50 75 100 50 75 100

130 130 130

60 60 60

80 80 80

0.45kg 0.65kg 0.85kg 0.45kg 0.65kg 0.85kg 0.45kg 0.65kg 0.85kg

Screw Screw Screw

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Frame size

Number of pole

Type

Rated current





IEC60947-2(Icu) AC 415V

Ics=0.5xIcu AC 380V

AC220/240V

DC 250V



Dimensions(mm) a

b

c

d

Weight

Mounting

Accessory

Auxiliary switch AX

Alarm switch AL

Shunt trip SHT


Terminal cover TC


Other information

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c

b



19VBS type


30~800AF

10~50kA

at 460Vac

Ampere frame

Breaking capacity

2, 3, 4 pole

100AF 225AF 400AF 600AF 800AF

2-pole 3-pole 4-pole * 2-pole 3-pole 4-pole * 2-pole 3-pole 4-pole * 2-pole 3-pole 4-pole * 2-pole 3-pole 4-pole

VBS 102 VBS 103 VBS 104 VBS 202 VBS 203 VBS 204 VBS 402 VBS 403 VBS 404 VBS 602 VBS 603 VBS 604 VBS 802 VBS 803 VBS 804

10, 15, 20, (25), 30, 40, 125, 150, (160), 175, 250, 300, (320), 350, 400A 500, 600, (630)A 700, 800A

50, 60, 75, 100A (180), 200, 225A

690V 690V 690V 690V 690V






50kA 50kA 50kA 100kA 100kA

14kA - 14kA - 20kA - 40kA - 40kA -

8500 7000 4000 4000 4000

1500 1000 1000 1000 1000

Thermal magnetic (TM) Thermal magnetic (TM) Thermal magnetic (TM) Thermal magnetic (TM) Thermal magnetic (TM)

60 90 120 105 105 140 140 140 185 210 210 280 210 210 280

155 165 257 275 275

60 60 109 107 107

82 84 145 155 155

0.7kg 1.0kg 1.2kg 1.1kg 1.2kg 1.5kg 5.2kg 6.2kg 7.8kg 11kg 11.5kg 18.2kg 11kg 11.5kg 18.2kg

Screw Screw Screw Screw Screw

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40 page 42 page 44 page 46 page 48 page

at AC460V

at AC220V

High interrupting capacity type MCCB

20 VITZROTECH MCCB

Frame size

Number of pole

Type

Rated current





IEC60947-2(Icu) AC 415V

Ics=0.5xIcu AC 380V

AC220/240V

DC 250V



Dimensions(mm) a

b

c

d

Weight

Mounting

Accessory

Auxiliary switch AX

Alarm switch AL

Shunt trip SHT


Terminal cover TC


Other information

30AF 50AF 60AF

2-pole 3-pole 4-pole 2-pole 3-pole 4-pole 2-pole 3-pole 4-pole

VBH 32 VBH 33 VBH 34 VBH 52 VBH 53 VBH 54 VBH 62 VBH 63 VBH 64

6, 10, 15, (16), 20, (25), 30, (32)A 10, 15, (16), 20, (25), 30, (32)40, 50A 60, (63)A

690V 690V 690V

5kA 10kA 10kA

7.5kA 14kA 14kA

14kA 25kA 25kA

14kA 25kA 25kA

14kA 25kA 25kA

25kA 50kA 50kA

5kA - 14kA - 14kA -

8500 8500 8500

1500 1500 1500


50 75 100 60 90 120 60 90 120

130 155 155

60 60 60

80 82 82


Screw Screw Screw

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Low Voltage Circuit BreakersChange the Breakers, Change the Quality

21VBH type

30~400AF

14~50kA

at 460Vac

Ampere frame

Breaking capacity

2, 3, 4 pole

100AF 225AF 400AF

2-pole 3-pole 4-pole * 2-pole 3-pole 4-pole * 2-pole 3-pole 4-pole

VBH 102 VBH 103 VBH 104 VBH 202 VBH 203 VBH 204 VBH 402 VBH 403 VBH 404

15, (16), 20, (25), 30, (32)40, 50,125, 150, (160), 175, (180), 200, 225 A 250, 300, (320), 350, 400 A

60, (63), 75, (80), 100A

690V 690V 690V

18kA 18kA 30kA

25kA 25kA 35kA

35kA 35kA 50kA

35kA 35kA 50kA

35kA 35kA 50kA

65kA 65kA 85kA

18kA - 18kA - 40kA -

8500 7000 4000

1500 1000 1000


60 90 120 105 105 140 140 140 185

155 165 257

60 60 109

82 84 145


Screw Screw Screw

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at AC460V

at AC220V

Current limiting type MCCB

22 VITZROTECH MCCB

Frame size

Number of pole

Type

Rated current





IEC60947-2(Icu) AC 415V

Ics=0.5xIcu AC 380V

AC220/240V

DC 250V



Dimensions(mm) a

b

c

d

Weight

Mounting

Accessory

Auxiliary switch AX

Alarm switch AL

Shunt trip SHT


Terminal cover TC


Other information

50AF 100AF 225AF

* 2-pole 3-pole * 2-pole 3-pole * 2-pole 3-pole

VBL 52 VBL 53 VBL 102 VBL 103 VBL 202 VBL 203

10, 15, (16), 20, (25), 30, 10, 15, (16), 20, (25), 30, (32)40, 50, 125, 150, (160), 175,(32)40, 50A 60, (63), 75, (80), 100A (180), 200, 225 A

690V 690V 690V

35kA 35kA 35kA

42kA 42kA 42kA

65kA 65kA 65kA

65kA 65kA 65kA

65kA 65kA 65kA

100kA 100kA 100kA

40kA 40kA 40kA

8500 8500 7000

1500 1500 1000


74 105 74 105 105 105

156 156 165

82 82 99

104 104 122

1.2kg 1.4kg 1.2kg 1.4kg 2.0kg 2.1kg

Screw Screw Screw

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23VBL type


400AF 600AF 800AF

* 2-pole 3-pole 4-pole * 2-pole 3-pole 4-pole * 2-pole 3-pole 4-pole

VBL 402 VBL 403 VBL 404 VBL 602 VBL 603 VBL 604 VBL 802 VBL 803 VBL 804

250, 300, (320), 350, 400 A 500, 600, (630)A 700, 800A

690V 690V 690V

35kA 42kA 42kA

50kA 50kA 50kA

65kA 65kA 65kA

65kA 65kA 65kA

65kA 65kA 65kA

125kA 125kA 125kA

40kA - 40kA - 40kA -

4000 4000 4000

1000 1000 1000


140 140 185 210 210 280 210 210 280

257 275 275

109 107 107

145 155 155

5.2kg 6.2kg 7.8kg 11kg 11.5kg 18.2kg 11kg 11.5kg 18.2kg

Screw Screw Screw

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50~800AF

65kA

at 460Vac

Ampere frame

Breaking capacity

2, 3, 4 pole

at AC460V

at AC220V

MCCB VBP typePanel board MCCB

24 VITZROTECH MCCB

Frame size

Number of pole

Type

Rated current



capacity, Icu AC 415V


IEC60947-2(Icu) AC 240V

Ics=0.5xIcu AC 220V

AC 110V


Dimensions(mm) a

b

c

d

Weight

Mounting

Other information

30AF 50AF 100AF

2-pole 3-pole 2-pole 3-pole 2-pole 3-pole

VBP 32 VBP 33 VBP 52 VBP 53 VBP 102 VBP 103

6, 10, 15, (16), 20, (25), 30, (32)A 15, (16), 20, (25), 30, (32)40, 50A 60, (63), 75, (80), 100A

690V 690V 690V

2.5kA 2.5kA 2.5kA

2.5kA 2.5kA 2.5kA

2.5kA 2.5kA 2.5kA

5kA 5kA 5kA

5kA 5kA 5kA

5kA 5kA 5kA

Hydraulic magnetic Hydraulic magnetic Hydraulic magnetic

50 75 50 75 75 75

96 96 96

60 60 60

80 80 80

0.33kg 0.47kg 0.33kg 0.47kg 0.5kg 0.5kg

Screw/DIN rail Screw/DIN rail Screw/DIN rail


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30~100AF Ampere frame

2, 3- pole


25VLP type


Low Voltage Circuit BreakersELCB VLP typePanel board ELCB


2, 3- pole

Frame size

Type

Number of pole

Rated current


Rated breaking capacity, Icu AC 460V


Protection function

Rated sensitive current

Operation time

Automatic overcurrent

tripping device ground fault

Dimensions(mm) a

b

c

d

Weight

Mounting

Other information

30AF 50AF 100AF

VLP 32 VLP 33 VLP 52 VLP 53 VLP 102 VLP 103


6, 10, 15, (16), 20, (25), 30, (32)A 15, (16), 20, (25), 30, (32)40, 50A 60, (63), 75, (80), 100A

220V 460V 220V 460V 220V 460V

- 2.5kA - 2.5kA - 2.5kA

5kA 5kA 5kA 5kA 5kA 5kA

Ground fault, Overload, Short-circuit

30mA 30mA 30mA

0.03 sec 0.03 sec 0.03 sec

Hydraulic magnetic Hydraulic magnetic Hydraulic magnetic

Electronic Electronic Electronic

50 75 50 75 75 75

96 96 96

60 60 60

80 80 80

0.33kg 0.47kg 0.33kg 0.47kg 0.5kg 0.5kg

Screw/DIN rail Screw/DIN rail Screw/DIN rail


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MCB VBK typeMiniature Circuit Breaker

26 VITZROTECH MCCB

Frame size

Number of pole

Type

Rated current


Rated breaking capacity, Icu AC 380V

KSC8321(Sym) AC 220/240V


No. of operation cycle

Dimensions(mm) a

b

c

d

Weight

Mounting

Other information

60AF

1-pole 2-pole 3-pole

VBK 61 VBK 62 VBK 63

6, 10, 15, (16), 20, 30, (32), 40, 50A 6, 10, 15, 20, 30, 40, 50, 60, (63)A

220/240V 220/240V 460V

- - 2.5kA

5kA 5kA 5kA

Thermal-Magnetic

20000operations(mechanical/electrical)

18 36 54

85

50

73

0.12kg 0.24kg 0.36kg

DIN rail

54 page

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60AF Ampere frame

1, 2, 3- pole

Trip curve : C type

DIN rail mountable


27VBF type


Low Voltage Circuit BreakersMCB VBF typeMiniature Circuit Breaker


1, 2, 3- pole

Clamp mountable

Frame size

Number of pole

Type

Rated current


Rated breaking capacity, IcuAC220/240V

KSC8321(Sym)


Dimensions(mm) a

b

c

d

Weight

Mounting

Other information

50AF 100AF


VBF 51 VBF 52 VBF 53 VBF 101 VBF 102 VBF 103

10, 15, (16), 20, 30, (32), 40, 50 A 60, (63), 75, (80), 100A

220/240V 220/240V

2.5kA 5kA 5kA 2.5kA 5kA 5kA

Thermal-magnetic Thermal-magnetic

20 50 75 20 50 75

95 95

60 60

77 77

0.13kg 0.26kg 0.38kg 0.13kg 0.26kg 0.38kg

Clamping Clamping

55 page 55 page

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Combination for internal accessories

28 VITZROTECH MCCB

○ AX, Auxiliary switch ● AL, Alarm switch □ SHT, Shunt trip or UVT, Under voltage trip

Installation positions

Leftcavity

Rightcavity

VBE 52 VBE 53 VBE 402/403/404VBE 62 VBE 63 VBE 602/603/604VBE102 VBE 103/104 VBE 802/803/804

VBE 202/203/204VBS 32 VBS 33 VBS 402/403/404VBS 52 VBS 53/54 VBS 602/603/604VBS 62 VBS 63/64 VBS 802/803/804VBS 102 VBS 202/203/204VBH 32 VBH 33 VBH 402/403/404VBH 52 VBH 53/54VBH 102 VBH 103/104

VBH 202/203/204VBL 52 VBL53/54 VBL 402/403/404VBL 102 VBL 103/104 VBL 602/603/604

VBL 202/203/204 VBL 802/803/804

2-pole 2, 3, 4-pole 2, 3, 4-pole

Economictype

Standardtype

High interruptingtype

Current limitingtype

Number of pole

AX

AX2

AX3(4)

AL

AL2

AL3(4)

SHT(UVT)

SHT(UVT)2

AX+AL

AX+AL2

AX+AL3(4)

AX2+AL

AX2+AL2

AX2+AL3(4)

AX3(4)+AL

AX3(4)+AL2

AX3(4)+AL3(4)

AX+SHT(UVT)

Handle

MCCB

29Combination for internal accessories



VBE 52 VBE 53 VBE 402/403/404VBE 62 VBE 63 VBE 602/603/604VBE102 VBE 103/104 VBE 802/803/804

VBE 202/203/204VBS 32VBS 33 VBS 402/403/404

VBS 52 VBS 53/54 VBS 602/603/604VBS 62 VBS 63/64 VBS 802/803/804VBS 102 VBS 202/203/204

VBH 32VBH 33 VBH 402/403/404VBH 52 VBH 53/54

VBH 102VBH 103/104VBH 202/203/204VBL 52VBL53/54 VBL 402/403/404

VBL 102 VBL 103/104 VBL 602/603/604VBL 202/203/204 VBL 802/803/804

2-pole 2, 3, 4-pole 2, 3, 4-pole

Economictype

Standardtype

High interruptingtype

Current limitingtype

Number of pole

AX+SHT(UVT)2

AX2+SHT(UVT)

AX2+SHT(UVT)2

AX3(4)+SHT(UVT)

AX3(4)+SHT(UVT)2

AL+SHT(UVT)

AL+SHT(UVT)2

AL2+SHT(UVT)

AL2+SHT(UVT)2

AL3(4)+SHT(UVT)

AL3(4)+SHT(UVT)2

AX+AL+SHT(UVT)

AX+AL+SHT(UVT)2

AX2+AL2+SHT(UVT)

AX2+AL2+SHT(UVT)2

AX3(4)+AL3(4)+SHT(UVT)

AX3(4)+AL3(4)+SHT(UVT)2

Terminal numbering

AX, Auxiliary switch AL, Alarm switch SHT, Shunt trip UVT, Under voltage trip

MCCB

Ratings of internal accessories

30 VITZROTECH MCCB

■Auxiliary switch, AX and alarm switch, AL

Operation of switches

▶▶ Auxiliary switch

AX, Auxiliary switch

It gives ON/OFF signal of the breaker with a changeover contact.

▶▶ Alarm switch

AL, Alarm switch

It gives TRIP signal of the breaker. It does not operate

when the breaker is normally opened or closed.

It consists of a changeover contact.

MCCB status

On Off Tripped

Auxiliary switch

AX

Alarm switch

AL

AXc1AXa1

AXb1

(20)

(30)

(21)

ALc1ALa1

ALb1

(11)

(12)

(13)

ALc1ALa1

ALb1

(11)

(12)

(13)

AXc1AXa1

AXb1

(20)

(30)

(21)

Electrical ratings of switches

AC DC

AF MCCB types Voltage Current Voltage Current

(V) Resistive load Inductive load (V) Resistive load Inductive load

VBE 50, 60, 100, 255, 400, 600, 800 125 5 3 30 4 3

30AF~800AFVBS 30, 50, 60, 100, 225, 400, 600, 800 250 3 2 125 0.4 0.4

VBH 30, 50, 100, 225, 400 500 - - 250 0.2 0.2

VBL 30, 50, 100, 225, 400, 600, 800

Note : MCCB type shows its nominal type. For example VBS30 indicates VB32(2-pole), 33(3-pole) and 34(4-pole).

31Ratings of internal auxiliaries



■Shunt trip, SHT

▶▶ Shunt trip

SHT, Shunt trip

It make the breaker TRIPPED when any ac or dc voltage is applied to itself.

Ratings

Power

Wiring1. With earthing 2. Without earthing

SHT ratings

AF MCCB types Voltage ratingsTime rating

OperationAC/DC common use AC DC volt

12 *AC :

24 85~110% ofVBE 50, 60, 100, 255

48 380~450125

rated volt.

30AF~225AFVBS 30, 50, 60, 100, 225

60 440~480240VBH 30, 50, 100, 225

AC100~125/DC100~110 500~550VBL 30, 50, 100

AC200~240/DC200~220 Instantaneous

250 *DC :

VBE 400, 600, 800 75~125% of

VBS 400, 600, 80024~48

380~460 rated volt.400AF~800AF

VBH 400AC200~240/DC200~220

480~550

VBL 400, 600, 800AC100~125/DC100~110


AF Voltage(V) Current Power(W)

AC/DC 12V 2.85A 34

AC/DC 24V 1.65A 40

AC/DC 48V 0.75A 36

AC/DC 60V 0.61A 36

AC 100~125V 0.37A 37

30~225AF DC 100~110V

DC 125V 0.3A 38

AC 200~240V 0.18A 35

DC 200~220V

DC 240V 0.15A 36

AC/DC 250V 0.14A 35

AF Voltage(V) Current Power(W)

AC 24V 14mA 0.3

DC 24V 15.4mA 0.4

AC 48V 14mA 0.7

DC 48V 16mA 0.8

AC 110 6 mA 0.7

400~800AF DC 110V 6.6mA 0.7

AC 220V 6.8mA 1.5

DC 200V 7.6mA 1.5

AC 440V 4.3mA 1.9

AC 480V 4.4mA 3.3

AC 550V 4.6mA 2.4

Power

Earth

Power

Ratings of internal accessories

32 VITZROTECH MCCB

■Under voltage trip, UVT

▶▶ Under voltage trip

UVT, Under voltage trip

It make the breaker TRIPPED when the control voltage disappears or falls.

Ratings

UVT ratings

AF MCCB types Voltage ratings Time On/Reset Trip

AC/DC common use AC DC rating voltage voltage

*AC : *AC :

VBE 50,60,100,255,400,600,800 24 380~450 85~110% of 20~70% of

30AF~800AF VBS 30,50,60,100,225,400,600,800 48 440~480Continuous

rated volt. rated volt.

VBH 30,50,100,225,400 100~110 *DC : *DC :

VBL 30,50,100,225,400,600,800 200~220 85~125% of 20~70% of

rated volt. rated volt.


33Ratings of internal accessories



■ Installation of internal accessories

(1) Trip the CB

Push the mechanical trip button to trip the MCCB

(4) Insert the accessories

Auxiliary Switch, AXAlarm Switch, AL Shunt Trip, SHT

Insert it by followingpositions-Name plate : front-Hook : Line side

Under Voltage Trip,

UVT

Insert the coil first by following positions-Name plate : front-Hook : Line sideThen install the terminalblock on the side of CB

Close the front coverand fix it with 2 screws.

(2) Open the front cover

Unscrew to open the front cover. (2 screws)

(3) Grip the accessories (5) Closed the front cover

Hold the accessory as shown.

VBE 30AFEconomic type

34 VITZROTECH MCCB

Frame size

Type 2-pole

3-pole

Rated current





IEC60947-2(Icu) AC 415V

Ics=0.5xIcu AC 220/240V

DC 250V



Mounting

Weight2-pole

3-pole

30AF

Economic type

VBE 32

VBE 33

5, 10, 15, (16), 20, (25), 30, (32)A

690V

-

-

2.5kA

2.5kA

5kA

-

8500operations

1500operations

Hydraulic Magnetic

Screw

0.33kg

0.47kg

■Dimensions, mm

81.3 96

50

81.3 96

75 45

80

60

652-pole 3-pole

VBE 32

VBE 33


35VBE 30AF



Temperature compensation curve

■Operating characteristic curve

Rated operation current ( x In)

min

.se

c.Tr

ippi

ng ti

me

6

40

20

10

68

4

2

0.80.6

1

0.4

4

2

1

0.02

0.01

0.2

0.10.08

0.04

0.06

240

100120150

60

40

20

80

810

180

1 10030 40 6050 80102 3 4 5 76 8 9 151.25 20

Instantaneoustrip range(900~1500%)

Total breaking time

Max.

Min.

Ope

ratin

g tim

e(%

)

300

250

200180160

120100

80

60

40

50300 10 20 5040

Ambient temperature(℃)

■Mounting dimensions, mm ■Panel cover cutting dimensions, mm

Terminal details

84

25

84

LC LC

LC LC

M4 M4

75

52

49

52

LC LC

LC LC

M5 X 1013

7.4

6

12

32

5.5

2-pole 3-pole 2-pole 3-pole

VBS 30AF, VBE 50/60AFStandard type / Economic type

36 VITZROTECH MCCB

30AF 50AF 60AF

Standard type Economic type Economic type

VBS 32 VBE 52 VBE 62



6, 10, 15, (16), 6, 10, 15, (16), 20, 60, (63)A

20, (25), 30, (32)A (25), 30, (32), 40, 50A

690V 690V 690V

2.5kA 2.5kA 2.5kA

5kA 5kA 5kA

10kA 10kA 10kA

10kA 10kA 10kA

18kA 18kA 18kA

2.5kA 2.5kA 2.5kA

8,500operations

1,500operations

Thermal Magnetic

Screw

0.45kg 0.45kg 0.45kg

0.65kg 0.65kg 0.65kg

0.85kg 0.85kg 0.85kg

VBS 32

VBS 33

VBS 34

VBE 52

VBE 53

VBE 54

VBE 62

VBE 63

VBE 64

2-pole4-pole3-pole

■Dimensions, mm

50

LC LC LC

LCLC

25

50

2525

50

75

25

50

115

130

130

115

130

115

2550

100 (79.5)

607.2


Frame size

2-poleType

3-pole

4-pole

Rated current





IEC60947-2(Icu) AC 415V


DC 250V



Mounting

2-pole

Weight 3-pole

4-pole


37VBS 30AF, VBE 50/60AF




■Operating characteristic curve ■Combination for internal accessories

6

40

20

10

68

4

2

0.80.6

1

0.4

4

2

1

0.02

0.01

0.2

0.10.08

0.04

0.06

240

100120150

60

40

20

80

810

180

1 10030 40 6050 80102 3 4 5 76 8 9 151.5 20


min

.se

c.Tr

ippi

ng ti

me 40A~100A

15A~30A

Min.

Max.

(800~1600%)

Instantaneoustrip range

Total breaking time

150

100

40300 10 20 5040

Rate

d cu

rren

t(%

)


For left cavity(except 2-pole)

(AX)

(AL)

(AX+AL)

For right cavity

○

●

○●

(AX)

(AL)

(AX+AL)

(SHT or UVT)

○

●

○●

□


Terminal details for 6 to 40A Terminal details for 50 to 60A

110.

5

110.

5

25

110.

5

25

LC LC LC

LC LC LC

M4 or 5

102

52

51

52

77

52LC LC LC

LC LC LC

24M5 X 1417

8.3

7.5

7

12.5

5.5

24M8 X 1417

8.3

7.5

7

15

9


VBH 30AF, VBS 50/60AF, VBE 100AFHigh interrupting capacity type / Standard type / Economic type

38 VITZROTECH MCCB

Frame size

Type 2-pole

3-pole

4-pole

Rated current





IEC60947-2(Icu) AC 415V


DC 250V



Mounting

2-pole

Weight 3-pole

4-pole

30AF 50AF 60AF 100AF

High interrupting Standard Standard Economictype type type type

VBH 32 VBS 52 VBS 62 VBE 102

VBH 33 VBS 53 VBS 63 VBE 103

VBH34 VBS 54 VBS 64 VBE 104

6, 10, 15, (16), 6, 10, 15, (16), 20,60, (63)A

60, (63),

20, (25), 30, (32)A (25), 30, (32), 40, 50A 75, (80), 100A

690V 690V 690V 690V

5kA 5kA 5kA 7.5kA

7.5kA 7.5kA 7.5kA 10kA

14kA 14kA 14kA 14kA

14kA 14kA 14kA 14kA

25kA 25kA 25kA 25kA

5kA 5kA 5kA 5kA

8,500operations

1,500operations

Thermal-Magnetic

Screw

0.45kg 0.45kg 0.45kg 0.45kg

0.65kg 0.65kg 0.65kg 0.65kg

0.85kg 0.85kg 0.85kg 0.85kg

VBH 32

VBH 33

VBH 34

VBS 52

VBS 53

VBS 54

VBS 62

VBS 63

VBS 64

VBE 102

VBE 103

VBE 104

2-pole4-pole3-pole

■Dimensions, mm

LC

25

50

115

130

LC

LC

25

5075

130

115

LC

LC

50

2525

130

115

2550100

(79.5)60

56

7.2



39VBH 30AF, VBS 50/60AF, VBE 100AF






min

.se

c.Tr

ippi

ng ti

me

6

40

20

10

68

4

2

0.80.6

1

0.4

4

2

1

0.02

0.01

0.2

0.10.08

0.04

0.06

240

100120150

60

40

20

80

810

180

1 10030 40 6050 80102 3 4 5 76 8 9 151.5 20

40A~100A

15A~30A

Min.

Max.

(800~1600%)


Total breaking time

150

100

40300 10 20 5040

Rate

d cu

rren

t(%

)



(AX)

(AL)

(AX+AL)

For right cavity

○

●

○●

(AX)

(AL)

(AX+AL)

(SHT or UVT)

○

●

○●

□


Terminal details for 6 to 40A Terminal details for 50 to 100A

110.

5

LC

LC

110.

5

25

LC

LC

110.

5

25

LC

LC

M4 or 5

52

51

LC

LC

52

77

LC

LC

102

52LC

LC

17

8.3

7.5

24M5 X 14

7

12.5

5.5

17

8.3

7.5

24M8 X 14

7

15

9


VBH 50/60/100AF, VBS 100AFHigh interrupting capacity type / Standard type

40 VITZROTECH MCCB

VBH 52

VBH 53

VBH 54

VBH 62

VBH 63

VBH 64

VBH 102

VBH 103

VBH 104

VBS 102

VBS 103

VBS 104

2-pole4-pole3-pole

■Dimensions, mm

L L

30 30

L

30

50

155

135

60

30

155

135

90

60

135

155

60

120

30

82

56

608.5

LC

LC LC


50AF 60AF 100AF 100AF

High interrupting High interrupting High interrupting Standard

type type type type

VBH 52 VBH 62 VBH 102 VBS 102



6, 10, 15, 15, (16), 20, 30,

(16), 20, (25), 60, (63)A (32), 40, 50, 60,

30, (32), 40, 50 (63), 75, (80), 100A

690V 690V 690V 690V

10kA 10kA 18kA 10kA

14kA 14kA 25kA 14kA

25kA 25kA 35kA 25kA

25kA 25kA 35kA 25kA

50kA 50kA 65kA 50kA

14kA 14kA 18kA 14kA

8,500operations

1,500operations

Thermal-Magnetic

Screw

0.7kg 0.7kg 0.7kg 0.7kg

1.0kg 1.0kg 1.0kg 1.0kg

1.2kg 1.2kg 1.2kg 1.2kg

Frame size

Type 2-pole

3-pole

4-pole

Rated current





IEC60947-2(Icu) AC 415V


DC 250V



Mounting

2-pole

Weight 3-pole

4-pole


41VBH 50/60/100AF, VBS 100AF





Trip

ping

tim

e


Rate

d cu

rren

t(%

)



For right cavity


Terminal details

L L L132

30

132

132

30

LC LC LC

M4

L L L52

60 102

52

77

52

LC LC LC

10

17 M8 X 14

8.5

16.5

24

8 9


(AX)

(AL)

(AX+AL)

○

●

○●

(AX)

(AL)

(AX+AL)

(SHT or UVT)

○

●

○●

□

VBE/VBS/VBH 225AFEconomic type / Standard type / High interrupting capacity type

42 VITZROTECH MCCB

Frame size

Type2-pole

3-pole

4-pole

Rated current


Rated breaking AC600V



IEC60947-2(Icu) AC 415V


DC 250V



Mounting

2-pole

Weight 3-pole

4-pole

225AF

Economic type Standard type High interrupting type

VBE 202 VBS 202 VBH 202

VBE 203 VBS 203 VBH 203

VBE 204 VBS 204 VBH 204

125, 150, (160), 175, (180), 200, 225A

690V 690V 690V

7.5kA 10kA 18kA

10kA 14kA 25kA

18kA 25kA 35kA

18kA 25kA 35kA

35kA 50kA 65kA

10kA 14kA 18kA

7000operations

1000operations

Thermal-Magnetic

Screw

1.1kg 1.1kg 1.1kg

1.2kg 1.2kg 1.2kg

1.5kg 1.5kg 1.5kg

VBE 202

VBE 203

VBE 204

VBS 202

VBS 203

VBS 204

VBH 202

VBH 203

VBH 204

4-pole2, 3-pole

■Dimensions, mm

80

35

70

105

165

144

LC

L L

LC

79

3535

3570

140

165

144

8

84

60

56

2, 3-pole 4-pole




43VBE/VBS/VBH 225AF



min

.se

c.

6

40

20

10

68

4

2

0.80.6

1

0.4

4

2

1

0.02

0.01

0.2

0.10.08

0.04

0.06

240

100120150

60

40

20

80

810

180

1 10030 40 6050 80102 3 4 5 76 8 9 151.25 20

Max.

Min.

Total breaking time

Instantaneoustrip range(800~1600%)


Trip

ping

tim

e

150

100

40300 10 20 5040

Rate

d cu

rren

t(%

)



(AX)

(AL)

(AX+AL)

For right cavity

○

●

○●

(AX)

(AL)

(AX+AL)

(SHT or UVT)

○

●

○●

□


Terminal details

L L

LC LC

126

35

126

35

M4

L L

LC LC

142

52

107

52

10.5

11

25.5 M8 X 14 24

25

8 9

2, 3-pole 4-pole 2, 3-pole 4-pole

400AFEconomic type / Standard type / High interrupting capacity type / Current limiting type

44 VITZROTECH MCCB

4-pole2, 3-pole

■Dimensions, mm

L L

103

95

154

184

225

257

88

140

225

257

4488

LC LC

2, 3-pole 4-pole

VBE 402

VBE 403

VBE 404

VBS 402

VBS 403

VBS 404

VBH 402

VBH 403

VBH 404

VBL 402

VBL 403

VBL 404

Frame size

Type 2-pole

3-pole

4-pole

Rated current





IEC60947-2(Icu) AC 415V


DC 250V



Mounting

2-pole

Weight 3-pole

4-pole

400AF

Economic Standard High interrupting Current limitingtype type type type

VBE 402 VBS 402 VBH 402 VBL 402

VBE 403 VBS 403 VBH 403 VBL 403

VBE 404 VBS 404 VBH 404 VBL 404

250, 300, (320), 350, 400A

690V 690V 690V 690V

18kA 22kA 30kA 35kA

18kA 25kA 35kA 50kA

25kA 35kA 50kA 65kA

25kA 35kA 50kA 65kA

35kA 50kA 85kA 125kA

10kA 20kA 40kA 40kA

4000operations

1000operations

Thermal-Magnetic

Screw

5.2kg 5.2kg 5.2kg 5.2kg

6.2kg 6.2kg 6.2kg 6.2kg

7.8kg 7.8kg 7.8kg 7.8kg


45400AF





min

.se

c.

6

40

20

10

68

4

2

0.80.6

1

0.4

4

2

1

0.02

0.01

0.2

0.10.08

0.04

0.06

240

100120150

60

40

20

80

810

180

1 10030 40 6050 80102 3 4 5 76 8 9 151.25 20


(1100~1500%)

(250,350A)

Max.

Min.

(300,400A)Instantaneoustrip range

(900~1500%)

Total breaking time


Trip

ping

tim

e

150

100

40300 10 20 5040


Rate

d cu

rren

t(%

)


(AX 1 or 2 each)

(AL 1 or 2 each)

(SHT or UVT)

(Max. 2 each of AL and AX)

(SHT or UVT) +(Max. 2 each of AL and AX)

For right cavity

○ ○○

● ●●

□

●●○○

●●○○


Terminal details

4444

215

215

LC

L L

LCM5

142 186

100

100L L

LC LC

2913

30

29.5

1 10.5

37


□

(AX 1 or 2 each)

(AL 1 or 2 each)



○ ○○

● ●●

●●○○

●●○○

600AFEconomic type / Standard type / Current limiting type

46 VITZROTECH MCCB

Frame size

Type2-pole

3-pole

4-pole

Rated current





IEC60947-2(Icu) AC 415V


DC 250V



Mounting

2-pole

Weight 3-pole

4-pole

600AF

Economic type Standard type Current limiting type

VBE 602 VBS 602 VBL 602

VBE 603 VBS 603 VBL 603

VBE 604 VBS 604 VBL 604

500, 600, 630A

690V 690V 690V

22kA 35kA 42kA

25kA 45kA 50kA

35kA 50kA 65kA

35kA 50kA 65kA

50kA 100kA 125kA

20kA 40kA 40kA

4000operations

1000operations

Thermal-Magnetic

Screw

11kg 11kg 11kg

11.5kg 11.5kg 11.5kg

18.2kg 18.2kg 18.2kg

VBE 602

VBE 603

VBE 604

VBS 602

VBS 603

VBS 604

VBL 602

VBL 603

VBL 604

4-pole2, 3-pole

■Dimensions, mm

22

L L

70

210

140

44

275

244

140

44

275

244

103

98

13

LC LC

22

280 158

2, 3-pole 4-pole

47600AF





min

.se

c.

6

40

20

10

68

4

2

0.80.6

1

0.4

4

2

1

0.02

0.01

0.2

0.10.08

0.04

0.06

240

100120150

60

40

20

80

810

180

1 10030 40 6050 80102 3 4 5 76 8 9 151.25 20

(1100~1500%)

(500A)

(900~1500%)

(600A)

Max.

Min.



Total breaking time


Trip

ping

tim

e

150

100

40300 10 20 5040


Rate

d cu

rren

t(%

)


(AX 1 or 2 each)

(AL 1 or2 each)

(SHT or UVT)



For right cavity

○ ○○

● ●●

□

●●○○

●●○○


244

244

70 70

LC

L L

LC

M6

280210

100

100

LC

L L

LC


□

(AX 1 or 2 each)

(SHT or UVT)

(Max. 2 each of AX)

(SHT or UVT) +

(Max. 2 each of AX)

○ ○○

□

○○

○○ □

800AFEconomic type / Standard type / Current limiting type

48 VITZROTECH MCCB

Frame size

Type2-pole

3-pole

4-pole

Rated current





IEC60947-2(Icu) AC 415V


DC 250V



Mounting

2-pole

Weight 3-pole

4-pole

800AF

Economic type Standard type Current limiting type

VBE 802 VBS 802 VBL 802

VBE 803 VBS 803 VBL 803

VBE 804 VBS 804 VBL 804

700, 800A

690V 690V 690V

22kA 35kA 42kA

25kA 45kA 50kA

35kA 50kA 65kA

35kA 50kA 65kA

50kA 100kA 125kA

20kA 40kA 40kA

4000operations

1000operations

Thermal-Magnetic

Screw

11kg 11kg 11kg

11.5kg 11.5kg 11.5kg

18.2kg 18.2kg 18.2kg

4-pole2, 3-pole

■Dimensions, mm

22

L L 244

275

280

244

275

22140210

44 44

140 70

98

103

158

13

LC LC

2, 3-pole 4-pole

VBE 802

VBE 803

VBE 804

VBS 802

VBS 803

VBS 804

VBL 802

VBL 803

VBL 804

49800AF





min

.se

c.

6

40

20

10

68

4

2

0.80.6

1

0.4

4

2

1

0.02

0.01

0.2

0.10.08

0.04

0.06

240

100120150

60

40

20

80

810

180

1 10030 40 6050 80102 3 4 5 76 8 9 151.25 20

Max.

Min.

Total breaking time

(1100~1500%)

(700A)Instantaneoustrip range

(900~1500%)

(800A)Instantaneoustrip range


Trip

ping

tim

e

150

100

40300 10 20 5040


Rate

d cu

rren

t(%

)


(AX 1 or 2 each)

(AL 1 or 2 each)

(SHT or UVT)



For right cavity

○ ○○

● ●●

□

●●○○

●●○○


244

244

70 70

LC

L L

LC

M6

280210

100

100

LC

L L

LC


□

(AX 1 or2 each)

(SHT or UVT)

(Max. 2 each of AX)

(SHT or UVT) +

(Max. 2 each of AX)

○ ○○

□

○○

○○ □

VBL 50/100AFCurrent limiting type

50 VITZROTECH MCCB

Frame size

Type 2-pole

3-pole

Rated current





IEC60947-2(Icu) AC 415V


DC 250V



Mounting

Weight2-pole

3-pole

50AF 100AF

Current limiting type Current limiting type

VBL 52 VBL 102

VBL 53 VBL 103

10, 15, (16), 20, (25), 10, 15, (16), 20, (25), 30, (32),30, (32), 40, 50A 40, 50, 60, (63), 75, (80), 100A

690V 690V

35kA 35kA

42kA 42kA

65kA 65kA

65kA 65kA

100kA 100kA

40kA 40kA

8500operations

1500operations

Thermal-Magnetic

Screw

1.2kg 1.2kg

1.4kg 1.4kg

■Dimensions, mm

L 135

155

60

30

LC

104

79

8.5 82

30

L 155

135

60

90

LC

2-pole 3-pole

VBL 52

VBL 53

VBL 102

VBL 103


51VBL 50/100AF




6

40

20

10

68

4

2

0.80.6

1

0.4

4

2

1

0.02

0.01

0.2

0.10.08

0.04

0.06

240

100120150

60

40

20

80

810

180

1 10030 40 6050 80102 3 4 5 76 8 9 151.25 20

Max.(30A)

Max.(15,20A)

Min.(30A)

Min.(15.20A)

6

40

20

10

68

4

2

0.80.6

1

0.4

4

2

1

0.02

0.01

0.2

0.10.08

0.04

0.06

240

100120150

60

40

20

80

810

180

1 10030 40 6050 80102 3 4 5 76 8 9 151.25 20

Max.

Min.

min

.se

c.m

in.

sec.

(1000~2000%)


Total breaking time

(900~1500%)



Trip

ping

tim

e


Trip

ping

tim

e

150

100

50300 10 20 5040


Rate

d cu

rren

t(%

)


(AX)

(AL)

(AX+AL)

For right cavity

○

●

○●

(AX)

(AL)

(AX+AL)

(SHT or UVT)

○

●

○●

□


Terminal details

L L132

30

132

LC LCM4

L L52

60

52

77

LC LC

10

17 M8 X 14

8.5

16.5

24

8 9

2-pole 3-pole 2-pole 3-pole


VBL 225AFCurrent limiting type

52 VITZROTECH MCCB

Frame size

Type 2-pole

3-pole

Rated current





IEC60947-2(Icu) AC 415V


DC 250V



Mounting

Weight2-pole

3-pole

225AF

Current limiting type

VBL 202

VBL 203

125, 150, (160), 175, (180), 200, 225A

690V

35kA

42kA

65kA

65kA

100kA

40kA

7000operations

1000operations

Thermal-Magnetic

Screw

2.0kg

2.1kg

■Dimensions, mm

80

L

35

144

165

105

70

LC

96

99

122

8

2, 3-pole

VBL 202

VBL 203


53VBL 225AF





min

.se

c.

6

40

20

10

68

4

2

0.80.6

1

0.4

4

2

1

0.02

0.01

0.2

0.10.08

0.04

0.06

240

100120150

60

40

20

80

810

180

1 10030 40 6050 80102 3 4 5 76 8 9 151.25 20

Max.

Min.

(800~1500%)


Total breaking time


Trip

ping

tim

e

150

100

50300 10 20 5040


Rate

d cu

rren

t(%

)


(AX)

(AL)

(AX+AL)

or right cavity

○

●

○●

(AX)

(AL)

(AX+AL)

(SHT or UVT)

○

●

○●

□


Terminal details

L

35

126

LCM4

L

107

52

LC

25.5

10.5

24M8 X 14

11

25

8 9

Miniature Circuit Breaker

MCB

VBK TYPE

54 VITZROTECH MCCB

■Dimensions, mm

85–1

.5

18

54

85–1

.5

18

36 36

18

71–1.5

85–1

.5

45 35

5.544



min

.se

c.

10

0.4

0.60.8

0.080.06

0.1

0.2

0.04

4

2

1

1

0.002

0.001

0.02

0.010.008

0.004

0.006

80

815

30

4836

4

20

24

60

1 10030 40 6050 80102 3 4 5 76 8 9 151.25 20

Min.

Max.


Trip

ping

tim

e

VBK 61

VBK 62

VBK 63

Frame size

Number of pole

Type

Rated current



capacity, Icu

KSC8321(Sym) AC 220/240V


No. of operation cycle

Weight

Mounting

60AF


VBK 61 VBK 62 VBK 63

6, 10, 15, (16), 20, (25), 6, 10, 15, (16), 20, (25),

30, (32), 40, 50A 30, (32), 40, 50, 60A

220/240V 460V

- - 2.5kA

5kA 5kA 5kA

Thermal-Magnetic

20000operations(mechanical/electrical)

0.12kg 0.24kg 0.36kg

DIN rail


55Miniature circuit breaker



■Dimensions, mm11

3–2.

7

25–1

50–1.3

75–1.5

25–1

50–1.3

95–1

.5

25–1

95–1

.5

95–1

.5

77–1.5

63.5–1.5

100–

2.7



min

.se

c.

6

40

20

10

68

4

2

0.80.6

1

0.4

4

2

1

0.02

0.01

0.2

0.10.08

0.04

0.06

240

100120150

60

40

20

80

810

180

1 10030 40 6050 80102 3 4 5 76 8 9 151.25 20

32A up to

Max.

Min.


Total breaking time

32A up to


Trip

ping

tim

e

VBF TYPE

VBF 51

VBF 52

VBF 53

VBF 101

VBF 102

VBF 103

Frame size

Number of pole

Type

Rated current


Rated breaking

capacity, Icu AC 220/240V

KSC8321(Sym)


Weight

Mounting

50AF 100AF


VBF 51 VBF 52 VBF 53 VBF 101 VBF 102 VBF 103

10, 15, 20, 30, 40, 50A 60, 75, 100A

220/240V

2.5kA 5kA 5kA 2.5kA 5kA 5kA

Thermal-Magnetic Thermal-Magnetic

0.13kg 0.26kg 0.38kg 0.13kg 0.26kg 0.38kg

Clamping Clamping

Panel board MCCBPanel board type MCCB

56 VITZROTECH MCCB

VBP TYPE

■Dimensions, mm

81.3 96

50

81.3 96

7545

80

60

65

2-pole(30/50AF) 3-pole(2,3-pole in case of 100AF)

Frame size

Number of pole

Type

Rated current





IEC60947-2(Icu) AC 240V

Ics=0.5xIcu AC 220V

AC 110V


Weight

Mounting Standard

30AF 50AF 100AF


VBP 32 VBP 33 VBP 52 VBP 53 VBP 102 VBP 103

5, 10, 15, (16), 15, (16), 20, (25), 60, (63),

20, (25), 30, (32)A 30, (32), 40, 50A 75, (80), 100A

690V

2.5kA

2.5kA

2.5kA

5kA

5kA

5kA

Hydraulic magnetic

0.33kg 0.47kg 0.33kg 0.47kg 0.5kg 0.5kg

Screw/DIN rail

VBP 32

VBP 33

VBP 52

VBP 53

VBP 102

VBP 103

3-pole 2-pole(30/50AF)


57Panel board MCCB





(30, 50AF) (100AF)

6

40

20

10

68

4

2

0.80.6

1

0.4

4

2

1

0.02

0.01

0.2

0.10.08

0.04

0.06

240

100120150

60

40

20

80

810

180

1 10030 40 6050 80102 3 4 5 76 8 9 151.25 20

Max.

Min.

min

.se

c.

Total breaking time


Trip

ping

tim

e

300

250

200

180

160

120

100

80

60

40

50300 10 20 5040

Ope

ratin

g tim

e(%

)




6

40

20

10

68

4

2

0.80.6

1

0.4

4

2

1

0.02

0.01

0.2

0.10.08

0.04

0.06

240

100120150

60

40

20

80

810

180

1 10030 40 6050 80102 3 4 5 76 8 9 151.5 20

Max.

Min.

min

.se

c

Total breaking time


Trip

ping

tim

e

300

250

200180160

120100

80

60

40

50300 10 20 5040

Ope

ratin

g tim

e(%

)



Terminal details

84

25

84

LC LC

LC LC

M4

75

52

49

52

LC LC

LC LC

M5 X 1013

7.4

6

32

2-pole(30/50AF) 3-pole(2,3-pole in case of 100AF) 2-pole(30/50AF) 3-pole(2,3-pole in case of 100AF)

Compact ELCBPanel board type

58 VITZROTECH MCCB

VLP TYPE

■Dimensions, mm

81.3 96

50

81.3 96

7545

80

60

65

2-pole(30/50AF)

3-pole 2-pole(30/50AF)

3-pole(2,3-pole in case of 100AF)

Frame size

Type

Number of pole

Rated current


Rated breakingAC 460V

capacity, Icu


Protection function

Rated sensitive current

Operation time

Automatic overcurrenttripping device ground fault

Weight

Mounting

30AF 50AF 100AF

VLP 32 VLP 33 VLP 52 VLP 53 VLP 102 VLP 103

2P2E 3P3E 2P2E 3P3E 2P2E 3P3E

5, 10, 15, (16), 15, (16), 20, (25), 60, (63),

20, (25), 30, (32)A 30, (32), 40, 50A 75, (80), 100A

220V 460V 220V 460V 220V 460V

- 2.5kA - 2.5kA - 2.5kA

5kA 5kA 5kA 5kA 5kA 5kA

Ground fault, Overload, Short-circuit

30mA

0.03sec

Hydraulic magnetic

Electronic

0.33kg 0.47kg 0.33kg 0.47kg 0.5kg 0.5kg

Screw/DIN rail

VLP 32

VLP 33

VLP 52

VLP 53

VLP 102

VLP 103


59Compact ELCB





6

40

20

10

68

4

2

0.80.6

1

0.4

4

2

1

0.02

0.01

0.2

0.10.08

0.04

0.06

240

100120150

60

40

20

80

810

180

1 10030 40 6050 80102 3 4 5 76 8 9 151.25 20

min

.se

c.

Max.

Min.

Total breaking time


Trip

ping

tim

e

300

250

200

180

160

120

100

80

60

40

50300 10 20 5040

Ope

ratin

g tim

e(%

)




6

40

20

10

68

4

2

0.80.6

1

0.4

4

2

1

0.02

0.01

0.2

0.10.08

0.04

0.06

240

100120150

60

40

20

80

810

180

1 10030 40 6050 80102 3 4 5 76 8 9 151.5 20

Max.

Min.

min

.se

c

Total breaking time


Trip

ping

tim

e

300

250

200180160

120100

80

60

40

50300 10 20 5040

Ope

ratin

g tim

e(%

)



Terminal details

84

25

84

LC LC

LC LC

M4

84

25

84

LC LC

LC LC

M5 X 1013

7.4

6

32

2-pole(30/50AF) 3-pole(2,3-pole in case of 100AF) 2-pole(30/50AF) 3-pole(2,3-pole in case of 100AF)

(100AF)

Quick selection table

Frame size

VBE series

Economic

VBS series

Standard

VBH seriesHigh interrupting

VBL series

Current limiting

30AF 50AF 60AF

Type Rated current kA Type Rated current kA Type Rated current kA

VBE 32 5, 10, 15, 220V

VBE 52220V

VBE 62220V

(16), 20, (25),5kA 18kA 18kA

VBE 33 30, (32)460V

VBE 53

6, 10, 15,460V

VBE 63460V

2.5kA(16), 20, (25),

10kA60, (63)

10kA

- - - VBE 54

30, (32), 40, 50600V

VBE 64600V

2.5kA 2.5kA

VBS 32220V

VBS 52220V

VBS 62220V

18kA 25kA 25kA

VBS 33

6, 15, (16),460V

VBS 53

6, 10, 15,460V

VBS 63460V

20, (25),10kA

(16), 20, (25),14kA

60, (63)14kA

VBS 34

30, (32)600V

VBS 54

30, (32), 40, 50600V

VBS 64600V

2.5kA 5kA 5kA

VBH 32220V

VBH 52220V

VBH 62220V

25kA 50kA 50kA

VBH 33

6, 15, (16),460V

VBH 53

6, 10, 15,460V

VBH 63460V

20, (25),14kA

(16), 20, (25),25kA

60, (63)25kA

VBH 34

30, (32) 600V

VBH 54

30, (32), 40, 50600V

VBH 64600V

5kA 10kA 10kA

- - VBL 52220V

- -6, 10, 15,100kA

- - - VBL 53

(16), 20, (25),460V

- - -30, (32), 40, 5065kA

- - - -600V

- -35kA

Frame size

F. K. P type

MCB VBF type

50AF 100AF

Type Rated current kA Type Rated current kA

VBF 51220V

VBF 101220V

10, 15, (16),2.5kA 2.5kA

VBF 52 20(25), 30(32), 220V

VBF 10260(63), 220V

40, 505kA 75, (80), 100 5kA

VBF 53220V

VBF 103220V

5kA 5kA

60 VITZROTECH MCCB

Frame

P type

ELCB VLP type

30AF 50AF 100AF

Type Rated current kA Type Rated current kA Type Rated current kA

VLP 326, 10, 220V

VLP 526, 10, 220V

VLP 102 60, (63),220V

15, (16), 5kA 15, (16), 5kA75, (80),

5kA

VLP 3320, (25), 460V

VLP 5320, (25), 30, 460V

VLP 103 100460V

30, (32) 2.5kA (32), 40, 50 2.5kA 2.5kA

1. MCCB

2. MCCB and compact MCCB

3. Compact ELCB



6161Quick selection table

100AF 225AF 400AF 600AF 800AF

Type Rated current kA Type Rated current kA Type Rated current kA Type Rated current kA Type Rated current kA

VBE 102 10, 15, (16), 220V

VBE 202220V

VBE 402220V

VBE 602220V

VBE 802220V

20, (25), 30,25kA 125, 150, 35kA 35kA 50kA 50kA

VBE 103 (32), 40, 50,460V

VBE 203(160), 175, 460V

VBE 403

250, 300,460V

VBE 603500, 460V

VBE 803 700, 800460V

60, (63), 75,14kA (180), 200, 18kA

(320), 350, 25kA 600, (630) 35kA 35kA

VBE 104 (80), 100600V

VBE 204225 600V

VBE 404

400600V

VBE 604600V

VBE 804600V

7.5kA 7.5kA 18kA 22kA 22kA

VBS 102 10, 15, (16),220V

VBS 202220V

VBS 402220V

VBS 602220V

VBS 802220V

20, (25), 30,50kA 125, 150, 50kA 50kA 100kA 100kA

VBS 103 (32), 40, 50,460V

VBS 203(160), 175, 460V

VBS 403

250, 300,460V

VBS 603500, 460V

VBS 803 700, 800460V

60, (63), 75,25kA (180), 200, 25kA

(320), 350,35kA 600, (630) 50kA 50kA

VBS 104 (80), 100600V

VBS 204225 600V

VBS 404

400600V

VBS 604600V

VBS 804600V


VBH 102 10, 15, (16),220V

VBH 202220V

VBH 402220V

- - - -

20, (25), 30,65kA 125, 150, 65kA 85kA

VBH 103 (32), 40, 50,460V

VBH 203(160), 175, 460V

VBH 403

250, 300,460V

- - - - - -

60, (63), 75,35kA (180), 200, 35kA

(320), 350,50kA

VBH 104 (80), 100600V

VBH 204225 600V

VBH 404

400600V

- - - -18kA 18kA 30kA

VBL 10210, 15, (16), 220V

VBL 202125, 150, 220V

VBL 402220V

VBL 602220V

VBL 802220V

20, (25), 30, (32), 100kA (160), 175, 125kA 125kA 125kA 125kA

VBL 10340, 50, 60, (63), 460V

VBL 203(180), 200, 460V

VBL 403

250, 300,460V

VBL 603500, 460V

VBL 803 700, 800460V

75, (80), 100 65kA 225 65kA(320), 350,

65kA 600, (630) 65kA 65kA

- -600V

- -600V

VBL 404

400600V

VBL 604600V

VBL 804600V


MCB VBK type MCB VBK type

60AF 30AF 50AF 100AF

Type Rated current kA Type Rated current kA Type Rated current kA Type Rated current kA

VBK 61220V

VBP 325, 10, 220V

VBP 526, 10, 15, 220V

VBP 102 220V

6, 10,5kA 15, (16), 5kA (16), 20, (25), 5kA 60, (63), 5kA

VBK 62

15, (16),220V

VBP 3320, (25), 460V

VBP 5330, (32), 40, 460V

VBP 103 75, (80), 100 460V

20, (25),5kA 30, (32) 2.5kA 50 2.5kA 2.5kA

VBK 63

30, (32),380V

40, 502.5kA


MCCB application

62 VITZROTECH MCCB

■Application for transformer protection

3∅∅ Transformer capacity (KVA)

Breaking capacity(KA) (sym)

30

50

60

100

Frame (A)

225

400

600

800

VBP 33 VBS 32 VBH 32VBE 32 VBS 33 VBH 33VBE 33 VBS 34 VBH 34

VBP 52VBE 52 VBS 52 VBH 52

VBL 52VBP 53

VBE 53 VBS 53 VBH 53VBL 53VBE 54 VBS 54 VBH 54

VBE 62 VBS 62 VBH 62VBE 63 VBS 63 VBH 63VBE 64 VBS 64 VBH 64

VBP 102VBE 102 VBS 102 VBH 102 VBL 102

VBP 103VBE 103 VBS 103 VBH 103 VBL 103VBE 104 VBS 104 VBH 104 VBL 104VBE 202 VBS 202 VBH 2O2 VBL 202VBE 203 VBS 203 VBH 203 VBL 203VBE 204 VBS 204 VBH 204 VBL 204VBE 402 VBS 402 VBH 402 VBL 402VBE 403 VBS 403 VBH 403 VBL 403VBE 404 VBS 404 VBH 404 VBL 404

VBE 602 VBS 602 VBL 602 VBE 603 VBS 603 VBL 603VBE 604 VBS 604 VBL 604VBE 802 VBS 802 VBL 802VBE 803 VBS 803 VBL 803VBE 804 VBS 804 VBL 804

2.5 5 10 14 18 25 35 42 50 65 85

~50 75~200 ~300 ~750 ~1500 ~2000 ~3000

AC 415/460V

3∅∅ Transformer capacity(KVA)

1∅∅ Transformer capacity(KVA)

Breaking capacity(KA) (sym)

30

50

60

100Frame(A)

225

400

600

800

VBE 32 VBE 33VBS 32 VBH 32

VBP 32 VBP 33VBS 33 VBH 33VBS 34 VBH 34

VBF 52VBE 52 VBS 52 VBH 52

VBF 51VBF 53

VBE 53 VBS 53 VBH 53VBL 52

VBP 52VBE 54 VBS 54 VBH 54

VBL 53VBP 53

VBK 61VBE 62 VBS 62 VBH 62

VBK 62VBE 63 VBS 63 VBH 63VBE 64 VBS 64 VBH 64

VBF 102 VBE 102 VBS 102 VBH 102 VBL 102VBF 101 VBF 103 VBE 103 VBS 103 VBH 103 VBL 103

VBP 102 VBE 104 VBS 104 VBH 104 VBL 104VBE 202 VBS 202 VBH 202 VBL 202 VBE 203 VBS 203 VBH 203 VBL 203VBE 204 VBS 204 VBH 204 VBL 204VBE 402 VBS 402 VBH 402 VBL 402VBE 403 VBS 403 VBH 403 VBL 403VBE 404 VBS 404 VBH 404 VBL 404

VBE 602 VBS 602 VBL 602VBE 603 VBS 603 VBL 603VBE 604 VBS 604 VBL 604VBE 802 VBS 802 VBL 802VBE 803 VBS 803 VBL 803VBE 804 VBS 804 VBL 804

2.5 5 10 18 25 30 35 42 50 65 85 100 125

~30 ~50 75~100 150~300 500~750 ~1500 ~2000

~16 ~30 ~50 ~150 ~300

AC 220/240V



2.5 5 10 14 18 25 35 42 50 65 85

■Application for protection of lighting and heating circuits

Full load current MCCB(A) Rated current(A)12 1516 2024 3032 4040 50

48 60

60 7580 100

100 125120 150140 175160 200180 225200 250240 300280 350320 400400 500480 600560 700640 800

10VBE 32 VBE 33VBP 32 VBP 33

VBK 61 VBK 62VBE 62VBE 63VBE 64

VBE 102VBE 103VBE 104

VBS 32VBS 33VBS 34

VBH 32VBH 33VBH 34

VBH 52VBH 53VBH 54

VBL 52VBL 53

Breaking capacity(KA)2.5 5 10 18 25 30 35 42 50 65 85 100 125

AC220/240V

VBE 52VBE 53VBE 54

VBS 52VBS 53VBS 54VBS 62VBS 63VBS 64

VBH 62 VBH 63 VBH 64 VBH 102VBH 103VBH 104

VBL 102 VBL 103 VBL 104VBS 102 VBS 103 VBS 104

VBF 102VBF 103VBP 102

VBF 51

VBF 101



VBE 602 VBE 603 VBE 604

VBE 802 VBE 803 VBE 804

VBS 202VBS 203VBS 204


VBH 202VBH 203VBH 204



VBL 602VBL 603VBL 604VBL 802VBL 803VBL 804


VBL 102

VBL 103

VBL 104

VBL 402VBL 403VBL 404

VBF 52VBF 53VBP 52VBP 53

Full load current MCCB(A) Rated current(A)12 1516 2024 3032 4040 50

48 60

60 7580 100

100 125120 150140 175160 200180 225200 250240 300280 350320 400400 500480 600560 700640 800

VBP 33VBE 32VBE 33

VBP 52VBP 53

VBE 62 VBE 63 VBE 64

VBE 52VBE 53VBE 54


VBH 62VBH 63VBH 64VBS 102VBS 103VBS 104













VBE 602 VBE 603 VBE 604

VBE 802 VBE 803 VBE 804

VBP 102VBP 103



VBS 32VBS 33VBS 34

VBH 32VBH 33VBH 34

VBH 52VBH 53VBH 54

VBL 52VBL 53

AC415/460V

MCCB application 63

MCCB application

64 VITZROTECH MCCB

■Application for motor circuits

3 15

4.5 20

6.3 30

8.2 40

12 50

15.7 75

19.5 90

23.2 100

30 125

37.5 150

45 175

52.5 200

63.7 250

75 300

86.2 350

97.5 400

112.5 450

125 500

150 600

175 700

200 800

The largest motor(kW) : Motor capacity(kW) / Full load current(A)

0.75 1.5 2.2 3.7 5.5 7.5 11 15 18.5 22 30 37 45 55 75 90 110 132

4.8 8 11.1 17.4 26 34 48 65 79 93 125 160 190 230 310 360 440 500

20 30 30

30 30 30 50

40 40 40 50 60

50 50 50 50 75 100

60 60 60 60 75 100

100 100 100 100 100 100 125 150

100 100 100 100 100 100 125 150 175

125 125 125 125 125 125 125 150 175 200

150 150 150 150 150 150 150 150 175 225

175 175 175 175 175 175 175 175 200 225 300

200 200 200 200 200 200 200 200 200 225 300 400

225 225 225 225 225 225 225 225 225 225 300 400 500

300 300 300 300 300 300 300 300 300 300 300 400 500 500

350 350 350 350 350 350 350 350 350 350 350 400 500 500

400 400 400 400 400 400 400 400 400 400 400 400 500 500 600

500 500 500 500 500 500 500 500 500 500 500 500 500 500 600 700

500 500 500 500 500 500 500 500 500 500 500 500 500 500 700 700

600 600 600 600 600 600 600 600 600 600 600 600 600 600 700 700 1000

700 700 700 700 700 700 700 700 700 700 700 700 700 700 700 800 1000 1000

800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 1000 1000

900 900 900 900 900 900 900 900 900 900 900 900 900 900 900 900 1000 1000

Below table show the typical method to decide main MCCB rating in the circuit including motors.

Load descriptionAllowed current for the wire : Iw Rated current of the breaker : Ib

(IL: Other load, IM: Motor)

ΣIM�ΣIL IW�ΣIM+ΣIL

ΣIM�ΣIL, ΣIM�50A IW�1.25ΣIM+ΣIL

ΣIM�ΣIL, ΣIM�50A IW�1.1ΣIM+ΣIL

Select the smaller value between

Ib≤3ΣIM+ΣIL and Ib≤2.5IW

But in case Iw��100 and there is

no standard rated current of

a breaker suitable to the value.

You are allowed to selected

the breaker one step larger.

Application of rated current of main MCCB in the circuit of 3∅∅induction motors at AC200/220V, (A)

In case

the load

contains

a motor

or motors

Sum. ofload

current A

Sum of

Max. kWfor motor(s)(kW or smaller)



3 7.5

4.5 10

6.3 15

8.2 20

12 25

15.7 38

19.5 45

23.2 50

30 63

37.5 75

45 88

52.5 100

63.7 125

75 150

86.2 175

97.5 200

112.5 225

125 250

150 300

175 350

200 400

250 500

300 600

350 700

400 700

450 900

500 1000

The largest motor(kW) : Motor capacity(kW) / Full load current(A)

0.75 1.5 2.2 3.7 5.5 7.5 11 15 18.5 22 30 37 45 55 75 90 110 132

2.4 4 5.5 8.7 13 17 24 32 39 46 62 80 95 115 155 180 220 250

15 15 15

15 15 15 30

20 20 20 30 40

30 30 30 30 40 50

30 30 30 30 40 50

50 50 50 50 50 50 60 75

50 50 50 50 50 50 60 75 100

60 60 60 60 60 60 60 75 100 125

75 75 75 75 75 75 75 100 100 125

100 100 100 100 100 100 100 100 100 125 150

100 100 100 100 100 100 100 100 100 125 150 175

125 125 125 125 125 125 125 125 125 125 150 175 225

150 150 150 150 150 150 150 150 150 150 150 200 225 250

175 175 175 175 175 175 175 175 175 175 175 200 225 250

200 200 200 200 200 200 200 200 200 200 200 200 225 300 350

225 225 225 225 225 225 225 225 225 225 225 225 225 300 350 400

250 250 250 250 250 250 250 250 250 250 250 250 250 300 350 400

300 300 300 300 300 300 300 300 300 300 300 300 300 300 350 400 500

350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 400 500 500

400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 500 500 500

500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500

600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600

700 700 700 700 700 700 700 700 700 700 700 700 700 700 700 700 700 700

800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800

800 900 900 900 900 900 900 900 900 900 900 900 900 900 900 900 900 900

1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000

1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200

Application of rated current of main MCCB in the circuit of 3∅∅ induction motors at AC415/460V, (A)

MCCB application 65

Sum. ofload

current A

Sum of

Max. kWfor motor(s)(kW or smaller)

MCCB application

66 VITZROTECH MCCB

Spot welder MCCB

Capacity(kVA) Max. Input(kVA) 1∅∅ 220V 1∅∅ 400V

VBE 102/100 VBE 52/5015 35

VBS 102/100 VBS 52/50

30 65VBE 202/125 VBE 102/100

VBS 202/125 VBS 102/100

VBE 202/225 VBE 202/12555 140

VBS 202/225 ABS 202/125

■Application of MCCB for welder circuit

■Application of MCCB for capacitor circuitRated current of MCCB(A)

1∅∅ 3∅∅

220V 440V 220V 440V

50Hz 60Hz 50Hz 60Hz 50Hz 60Hz 50Hz 60Hz

50 50 30 30 40 50 30 20

75 60 40 40 50 50 30 30

100 100 60 50 60 60 40 40

175 175 75 60 100 75 50 40

200 200 100 100 100 100 50 50

225 225 100 100 175 150 60 60

400 400 150 125 200 200 100 75

400 400 175 175 225 225 100 100

600 500 300 300 400 400 150 150

800 800 400 400 400 400 225 225

1000 *1 1000 *1 600 500 600 600 300 300

- 1200 *1 800 800 800 800 400 400

- - 1000 1000 - - 600 600

- - - 1200 - - - 800

capacitor rating

(kVA)

5

10

15

20

25

30

40

50

75

100

150

200

300

400



6767MCCB application

■Application of MCCB for primary of transformers

factor of inrush current(K) = the 1st peak value of inrush current

the peak value of rated primary current

The life span of the switch on the primary side is greatly affected by the excessive amount of the exciting inrush current use of a contactor is recommended.

AC220V 1∅∅ transformer

VBE 52/40

VBS 52/40

VBE 102/60

VBS 102/60

VBE 102/75

VBS 102/75

VBE 202/150

VBS 202/150VBE 202/200

VBS 202/200

VBE 402/350

VBE 602/600

VBS 602/600

VBE 402/400

23.8 35.7 47.6 71.5 95.3 143 238 357

5 7.5 10 15 20 30 50 75

VBS 52/30

VBE 52/30VBS 52/40

VBE 52/40

VBS 52/50

VBE 52/50

VBE 102/75

VBS 102/75

VBS 52/50

VBE 52/50

VBE 102/60

VBS 102/60

VBE 102/100

VBS 102/100

VBE 202/125

VBS 202/125VBE 202/175

VBS 202/175VBS 402/300

VBS 402/400

factor of inrush

current(K)

30

25

20

rated primary current(A)

transformer capacity(kVA)


VBE 32/20

VBS 52/20

11.9 17.6 23.8 35.7 47.6 71.5 119 179 238

5 7.5 10 15 20 30 50 75 100

VBE 32/15

VBS 32/15

VBS 32/20

VBS 32/20 VBS 32/30

VBS 52/30VBE 52/40

VBS 52/40

VBS 52/50

VBE 52/50

VBS 102/75

VBE 102/75

VBE 202/150

VBS 202/150

VBE 202/225

VBS 202/225

VBE 402/300

VBS 402/350VBS 52/50

VBE 52/50

VBS 102/60

VBE 102/60

VBS 32/30

VBE 32/30VBE 52/40

VBS 52/40

VBE 102/60

VBS 102/60

VBS 102/75

VBE 102/75

VBS 202/150

VBE 202/150

VBE 202/175VBS 202/175

VBE 402/300VBS 402/300

factor of inrush

current(K)

30

25

20



MCCB application

68 VITZROTECH MCCB


VBS 33/20

VBS 53/20

13.8 20.7 27.5 41.3 55 82.5 138 207 275

5 7.5 10 15 20 30 50 75 100

VBS 33/15

VBS 53/15

VBS 33/30

VBS 53/30 VBS 33/30

VBS 53/30

VBS 53/50

VBE 53/50VBS 103/60

VBE 103/60

VBE 103/100

VBS 103/100

VBE 203/175

VBS 203/175

VBL 203/175VBE 403/250

VBS 403/250

VBE 403/350

VBS 403/350

VBE 403/300

VBS 403/300

VBE 403/400VBS 403/400

VBS 103/75

VBE 103/75

VBE 33/40

VBE 53/40VBE 53/40

VBS 53/40

VBE 103/60

VBS 103/60

VBS 103/100

VBE 103/100

VBH 103/100

VBE 203/200VBS 203/200VBH 203/200VBL 203/200

VBE 403/350VBS 403/350

factor of inrush

current(K)

30

25

20




6.9 10.3 13.8 20.7 27.5 41.3 68.8 103 138

5 7.5 10 15 20 30 50 75 100

VBS 33/15

VBE 53/15

VBS 33/15

VBS 53/15

VBS 33/15

VBS 53/15

VBS 33/30

VBS 53/30

VBS 33/30

VBS 53/30

VBS 53/50

VBE 103/100

VBS 103/100

VBE 103/75

VBS 103/75

VBE 203/125

VBS 203/125

VBL 203/125

VBE 203/175

VBS 203/175

VBL 203/175

VBE 203/200VBS 203/200VBL 203/200

VBS 33/20

VBS 53/20

VBE 33/20

VBS 53/20

VBE 53/40

VBS 53/40

VBS 53/40

VBE 53/40

VBE 103/60

VBS 103/60

VBS 103/100VBE 203/150VBS 203/150VBL 203/150

factor of inrush

current(K)

30

25

20



■Application of MCCB for primary of transformers

factor of inrush current(K) = the 1st peak value of inrush current

the peak value of rated primary current

The life span of the switch on the primary side is greatly affected by the excessive amount of the exciting inrush current use of a contactor is recommended.

69MCCB application



■Application of MCCB for a DC circuit

Applicable type DC application

VBP 33

VBP 53 VBP 103

NO

VBS 32, 33, 34 VBE 102, 103, 104 VBE 402, 403, 404 VBE 802, 803, 804

VBH 32, 33, 34 VBS 102, 103, 104 VBS 402, 403, 404 VBS 802, 803, 804

VBE 52, 53, 54 VBH 102, 103, 104 VBH 402, 403, 404 VBH 802, 803, 804

VBS 52, 53, 54 VBL 102, 103, 104 VBL 402, 403, 404 VBL 802, 803, 804

VBH 52, 53, 54 VBE 202, 203, 204 VBE 602, 603, 604 YES

VBL 52, 53, 54 VBS 202, 203, 204 VBS 602, 603, 604

VBE 62, 63, 64 VBH 202, 203, 204 VBH 602, 603, 604

VBS 62, 63, 64 VBL 202, 203, 204 VBL 602, 603, 604

VBH 62, 63, 64

Tripping method

Hydraulic

magnetic

Thermal

magnetic

DC 500V applicationGenerally DC250V is the maximum voltage for the MCCBs to interrupt in DC circuit.If the circuit is made by using 3-pole in series as shown below MCCBs can be applied to DC500V circuit.

Power

Load

MCCB types pole Voltage Breaking capacity, kA

VBS 53 VBS635

VBE 103

VBH 103

VBS 203 20

VBE 4033 DC500V

VBS 40335

VBE 603 VBE 803

VBL 103 VBL 203

VBL 403 40

VBL 603 VBL 803

MCCB application

70 VITZROTECH MCCB

S H L

S H L

■Coordination of cascade(Back-up) protectionAC 220/240V

Back up MCCB

Cascade BreakingMCCB capacity (kA)

VBE 33 5VBE 52 18VBE 103 25

E VBE 203 35VBE 403 35VBE 603 50VBS 33 18VBS 53 25VBS 63 25

S VBS 103 50VBS 203 50VBS 403 50VBS 603 100VBH 33 25VBH 53 50

H VBH 103 65VBH 203 65VBH 403 85

VBE VBE VBE VBE VBE VBS VBS VBS VBS VBS VBH VBH VBH VBL VBL VBL VBL VBL103 203 403 603 803 103 203 403 603 803 103 203 403 103 203 403 603 803

25 35 35 50 50 50 50 50 100 100 65 65 85 100 125 125 125 125

5 5 5

25 10 14 14 25 25 30 30 30 50

30 30 35 50 50 50 50 50 50

50 50 65 85 85

50 50 85 85

25 10 14 14 25 25 30 30 50

10 30 30 35 35 50 50 50 35 50 50 85

10 30 30 35 35 50 50 50 35 50 50 85

85 85 85 100

85 85 85 100 100 100

85 85 100 100

30 30 35 35 35 50 85

85 85 85

100 100 85 100 100 100 100

100 100 85 100 100 100

100 100 85 125 125 125

E

AC 415/460VBack up

MCCBCascade Breaking

MCCB capacity (kA)VBE 53 10VBE 63 10VBE 103 14

E VBE 203 18VBE 403 25VBE 603 35VBS 33 10VBS 53 14VBS 63 14

S VBS 103 25VBS 203 25VBS 403 35VBS 603 50VBH 33 14VBH 53 25

H VBH 103 35VBH 203 35VBL 103 65

LVBL 203 65VBL 403 65VBL 603 65

VBE VBE VBE VBS VBS VBS VBS VBS VBH VBH VBH VBL VBL VBL VBL VBL203 403 603 103 203 403 603 803 103 203 403 103 203 403 603 803

18 25 35 25 25 35 50 50 35 35 50 65 65 65 65 65

14 18 14 18 25 25 25

14 18 14 18 25 25 25

18 18 25 25 25 35 35 35

35 35 35 50 50

35 50 65

10 14 14 14 18 14 18 18 25 25

25 25 35 35 35 35 50

25 25 35 35 35 42 42 50

45 45 65 65

18 25 35 25 35 42 42

30 35 35 30 35 42 42 42 42

30 35 35 35 42 42 42

65 65 65

65 65 65

65 65

65

E

Installation and connectionChange the Breakers, Change the Quality


■Tightening torque for terminals

■Connections for solderless

Clamping screw M5 23~28

Round head screw M8 55~75

Hexagonal wrench bolt M8 55~75

Hexagonal bolt M12 400~500

VBE 30 VBE 50VBS 30 VBS 50VBH 30

VBE 60 VBE 100VBS 30 VBS 50 VBS 60 VBS 100VBH 50 VBH 100 VBL 100 VBP 100

VBE 200 VBS 200VBH 200 VBL 200

VBE 400 VBS 400 VBH 400 VBL 400VBE 600 VBS 600 VBH 600 VBL 600VBE 800 VBS 800 VBH 800 VBL 800

Screw Tightening torqueMCCBsShape SIze (kg∙cm)

For

solderless

terminal

For

busbar

Direct connection to the terminal of MCCB Connection to a busbar

Connection to extension busbars

← 1st terminal

← 2nd terminal, if necessary

71Installation and connection

Installation and connection

72 VITZROTECH MCCB

■Arc space

Arc spaces are required as below table according to the above conditions.Naked wires and terminals should be properly insulated by taping or insulation barrier as indicated beow.

- 10 - 10 - 10 10 - 5

40 25 40 25 25 15 40 40 10

50 30 50 30 25 15 50 50 -

50 50 50 50 50 20 50 50 -

100 80 100 80 50 40 50 50 -

100 80 100 80 80 20 100 100 -

100 80 100 80 80 40 100 100 -

30 25 30 25 20 15 30 30 5

40 30 40 30 25 15 40 40 10

50 40 50 40 25 15 50 50 10

100 80 100 80 50 40 50 50 10

100 80 100 80 50 40 50 50 10

100 80 100 80 80 40 100 100 10

100 80 100 80 80 40 100 100 10

100 80 100 80 80 40 100 100 10

200 160 200 160 80 40 200 200 10

VBE 33VBE 53, VBE63VBE 103VBS 103VBE 203, VBS 203, VBH 203VBE 403VBE 603, VBE 803VBS 33VBS 53, VBS 63VBH 53VBH 103VBL 103VBL 203VBS403, VBH 403VBS 603, VBS 803VBL 403, VBL 603

C1+

Length of

naked live

-part

Length of

nakedlive

-part+20

Length of

naked live

-part+20

MCCB types

From top Between breakers From naked side plate Taping or Insulation Barrier

A C1

400V 200V 400V 200V

C E

400V 200V

Taping Barrier

SolderlessBusbar

SolderlessBusbarterminal terminal

D1 D2 D3 D4

Nakedwire

length

F

Standard operating conditionsChange the Breakers, Change the Quality


■ Influence of mounting angleHydraulic magnetic type MCCBs are designed to be mounted vertically. If the mounting angle is changed it causes the change of rated current

■Reversed connection of line and load

MCCBs are designed and tested only for the normal connection as shown in Fig. 1.In case of the inverse connection in Fig.2 the specified breaking capacity is not guaranteed.

Line

Load

Line

Load

Vertical Horizontal Horizontal Slope of 15。 Slope of 45。 Slope of 15。 Slope of 45。(upside down)

Mounting

angle

AF

30~100AF 100% 120% 80% 105% 110% 95% 85%

Fig.1 Normal connection Fig.2 Reverse connection

73Standard operating conditions

Standard operating conditions

74 VITZROTECH MCCB

1. Standard operating conditionsStandard operating conditions specified in IEC.1. Operating temperature : -5℃ ~ 40℃2. Relative humidity : 85% or less3. Altitude : 2,000 meters or lower4. Environment : should be free of excessive aqueous vapor, oil, smoke, dust, corrosive gas, inflammable gas

2. Storage and transportation

� Do not leave the device in the area where corrosive gas exists.

� Keep the switch position at off or tripduring storage.

� Do not leave the device in humid environment for an excessive period of time.

Warnings for transportation

� Be careful not to drop the device during transportation.

� Do not carry the device by the lead wire of an accessory. It will give an excessive force to the accessory.

� Do not carry the device upside down if the DIN rail has been attached.

Warnings for mounting



3. Mounting and wiring

� Avoid direct contact with rain water. oil or smoke dust. � Do not block the vent hole. It will deteriorates interruption performance. Secure a sufficient insulation distance on the power source side of the breaker.

� Avoid direct sunlight. Erroneous operation may result by increased temperature.

� Do not remove the insulation plate attached at the bottom of the device.

Warnings for wiring

� If a screw is stained with lubricating oil. remove it from the screw before fastening. It may cause overheating on the device, and the excessive tensile force from the fastening torque on the screw may result in a mechanical damage.

� Wire the contactor for each phase so that they are arranged in parallel.

� Avoid reversed connection between the sides of power source andthe load on an MCCB in principle. If it is inevitable. consult the makerbeforehand.

Never make reversed connection on an ELB.

75Standard operating conditions

Warnings for mounting

76 VITZROTECH MCCB

On the connected conductors,a large electromagnetic forcetakes place in response to thefault current. Therefore it is necessary to fixthe conductors securely asshown to the right.

Screw fasteningWhen directly fastening a single wire to the terminal with a screw,fasten it by untwisting the wire.in case of a twisted wire, separate the strands into two similargroups and fasten them around the screw.

ELB connection

When using a 3-phase ELB for a single phase 3-wire circuit, the

neutral line should be connected to phase S. (See Fig. 1)

If you use a 3-phase ELB for a single phase 2-wire circuit, each wire

should be connected to the pole at either side. (Leave the pole in

the center unwired.) (See Fig. 2)

If two ELB's are connected in parallel, the magnetic part may be

damaged when leakage takes place. Never connect an MCCB and

ELB in parallel. (See Fig. 3)

Insulationsupport bar

Estimated current Interval between10 20

symmetry value kA(pf) conductors

10 (0.4) 50 25

18 (0.3) 190 95

25 (0.2) 450 225

35 (0.2) 890 445

42 (0.2) 1280 640

50 (0.2) 1820 910

65 (0.2) 3080 1540

85 (0.2) 5260 2630

100 (0.2) 7300 3650

100 (0.2) 7300 3650

125 (0.2) 11400 5700

Impact electromagnetic force for 1 meter of conductor(Unit:kg)

< Fig. 1 >

< Fig. 2 > < Fig. 3 >

Maintenance and CheckChange the Breakers, Change the Quality


77

After mounting of an MCCB or an ELB, check the following points before power-up.

Interval of Checks

Type Check Points Criteria Remark

1. No conductive material such as a screw, a metallic pieceShall be perfectly removed.

and a fragment of wire on or around the terminal

Common 2. No damage on the cover or the case. No damage allowable.

to MCCB 3. No condensation on the cover or the terminals of the case. No condensation allowable

and ELB 4. Measure the insulation resistance with an insulation tester. Shall be 5㏁㏁ or higherRefer to note2 for an ELB.

5. Secure connection of the conductors.Shall be the specifiedtorque or higher.

6. The rated voltage of and ELB should be same as Shall be the same.

ELB Only the circuit voltage.

7. Verify operation by applying a voltage and pushing the test button. The Elb shall trip.

1. Clean and dry environment Once every 2 to 3 years

2. Environment containing dust, corrosive gas, aqueous vapor, salt, etc. Once a year

3. Locations other than described in 1. and 2. Once every 6 months

Notes1. Withstand Voltage test

�Perform test at the voltage shown in the table to theright or higher.

2. Insulation Resistance Measurement and WithstandVoltage Test(For an ELB)

�Insulation Resistance MeasurementThe insulation resistance at the locations marked with adoes not break down when measured with a 500Vinsulation tester, but it does if 1,000V is applied. Thereading of the tester should be nearly “0”. Measure theresistance with the switch at “off” position. Do not use a1,000V tester.

�Withstand Voltage TestDo not apply any voltage at the locations marked with an ×.

Periodic CheckIn order to prevent a fault and use the breaker for a longtime, it is necessary to check the break once after a monthof installation and periodically afterwards depending onthe environmental conditions.

Main circuit Auxiliary Circuit or Control Circuit

Rated Insulation Test Voltage Rated Insulation Test Voltage

Voltage (RMS of Voltage of (RMS of

AC Portion) Control Circuit AC Portion)

Ui� 300 2000 Ui� 60 1000

300�Ui� 600 2500 60�Uis� 6002Uis+600

(Minimum 1,500)

Test Insulation Resistance Withstand

Point Measurement Voltage Test

Handle Position ON OFF ON OFF

Between the connection○ ○ ○ ○

Part and the ground

Between phases R-S, S-T ○ ○ ○ ○

Between Power source side △ ○ ×

phases R-T Load side △ △ × ×

Between the terminals of the- ○ - ○

power source and the load

Maintenance and Check


78 VITZROTECH MCCB

Life expectancy of the product

For maintenance and checks, checking depending on the environment in which the breaker is installed is necessary. However, thelife span of a breaker is not determined by the number of years i has been operating. It takes diagnosis by an expert and requires thefollowing periods in general.

EnvironmentClean and dry

Some dust but no corrosive gas in indoor air

Sulfurous acid gas, hydrogen sulfide, saltand high humidity but small amount of dustParticularly excessive corrosive gas and dust

Actual examplesDust protected and air conditioned electric roomsPower distribution panels located in electricrooms with no dust protection or air conditioningThermal power plants, waste water treatmentplants, steel mills, paper and pulp millsChemical plants, quarries, mines

Period of replacement (years)10 to 15 approx.

7 to 10 approx.

3 to 7 approx.

1 to 3 approx.

Check pointsHow to check

�Make sure that the terminal screws and wire fixing screws have not unfastened.�Use standard tools.�Check if the surface of an MCCB, especially the side of the

power source, have gathered dust, oil, etc.�In the structure to increase the creepage distance, verify if the

distance has been shortened because of dust and foreign matters.�In a breaker whose contacts remain closed normally, prevent

increase of friction caused by hardening of grease or otherreasons by opening and closing the contacts several times.�Stabilize the contact resistance resulting form sliding

operation of the contacts.�The breaker whose connection conductors have been

excessively discolored requires internal check.�Parts made of copper without corrosion resistance treatment

and brass with no plating.�Silver plates that have turned black.�Measure the insulation resistance between the phases and

the ground with 500V insulation tester.�In case of a conductive material, measure the external area.

How to check�Make sure that the terminal screws and wire fixing

screws have not unfastened.�Use standard tools.�Check if the surface of an MCCB, especially the side of the

power source, have gathered dust, oil, etc.�In the structure to increase the creepage distance, verify if the

distance has been shortened because of dust and foreign matters.�In a breaker whose contacts remain closed normally, prevent

increase of friction caused by hardening of grease or otherreasons by opening and closing the contacts several times.�Stabilize the contact resistance resulting form sliding

operation of the contacts.�The breaker whose connection conductors have been

excessively discolored requires internal check.�Parts made of copper without corrosion resistance treatment

and brass with no plating.�Silver plates that have turned black.�Measure the insulation resistance between the phases and

the ground with 500V insulation tester.�In case of a conductive material, measure the external area.

Countermeasure

�Fasten the screws with the specified torque depending on thematerial and the size of the screw.

�Remove dust with cleaner or a dry cloth.�Neutral detergent. (Corrosive detergent prohibited).

�The breaker which does not open or close smoothly requiresservice by the maker.

�Slight discoloration of silver plating is not a problem.�Take a sample from the same environment and ask the maker

for disassembly and investigation.�Replace the breakers with new ones and investigate the cause.

�Replace the breaker showing less than 5㏁ in principle andinvestigate the cause of deterioration.

�Perform dielectric test on a breaker whose insulation resistance is less than 5㏁.�The breaker with sufficient insulation resistance and dielectric strength is judged to be reusable, however, the user is requested to

observe carefully if there is temperature rise or any other abnormality.�For an ELB, also verify responses to button operations.

Check after trippingLevel of interrupting current

Operation within the operating range of delayed trip

Tripping current of relatively low current value

Large tripping current close to the ratedtripping capacity

Degree of damage to the breaker

No abnormality found except the vent hole

Carbonization phenomenon visible around the vent hole.

Carbonization phenomenon around the venthole, and melted pieces of metal attached

inside the breaker

CountermeasurePossible to trip 50 times at the overcurrent of

6 times of the rated current (100A or less).

Reusable

To be replaced with a new one

↕ ↕ ↕

Level

Standard operating

conditions

WorseEnvironment

Check points

Unfastening of the terminal screws

Dust

Opening and Closing

Discoloration ofthe terminal

Insulationresistance



79

Malfunction diagnosis

�Unfastening of the terminal screws or conductor connection screws

�Increase of the contact resistance of contacts

�Unfastening of the internal terminals

�Increase of current density caused by partial breakdown of a wire

�Bus-bar loosened

�Incomplete contact between the conductive part of the bus-bar and

the breaker terminals

�Foreign matter in the open and close mechanism

�The user did not reset the breaker

�The interrupting mechanism worn outIncorrect interrupting voltage

life span over

�Defective reset mechanism, erroneous adjustment

�Voltage too low to magnetize the coil of the trip mechanism

�Burn-out of fatigue of the spring of the Malfunction at a young age

open and close mechanism Life span over

�The bimetal corroded of deformed

�Life span over due to too many manipulations and operations

�The overcurrent interrupting mechanism not cooled sufficiently

�Contacts melted down due to excessive overcurrent

�Non-conductive matter absorbed between the contacts

�Conductive parts melted down Excessive interrupting current

Life span of short circuit

�Overly worn out contacts tripping current over

�Operating temperature too highWrong selection

No vent hole in the panel

�Temperature rises too high Terminal connection parts loosened

�Internal heating of an MCCB

�Heating in accordance with starting current

�Starting time too long

�Load current exceeds the rated value

(Excessive load on the motor, the motor voltage too high or too low)

�Starting current too high

�Excessive current on accordance with reversible operation

�In-rush current for instantaneous restart

�Charging current for capacitors, overcurrent for incandescent

lamps, starting current for fluorescent lamps

�Layer short circuit of a motor

�Abnormal current at the moment of power-up

�Erroneous connection of the control circuit

�Current is not displayed rapidly, because it is a high frequency current

�The rated current selected too high

�Current limitation by an upper level fuse, lack of coordination with an

upper level breaker

�Dust accumulated

�Conductive matter fallen on the power source side

�Temperature of the terminal too

high - Burn-out of the insulation

material theat terminal

�Temperature on the side

of the housing too high

�Heat generation at the

joints of the bus-bar

main body

�Unable to close

�Unable to re-manipulate

�Unable to trip

�Unable to turn off

�No conduction of

electricity

�Operation under

normal load

�Malfunction during

start-up

� Instantaneous

operation during

start-up

�Non-operation above

the specified operating

current

Temperature Rise

Erroneous Response

to Manipulation

Defection in

Conduction of

Electricity

Frequent Tripping

of an MCCB

Non Operation

short Circuit on the

Power Source Side

�Fasten with the

specified torque

�Replace with a new one

�Fasten up

�Refasten the bus-bar

� Remove the foreign matter

�Do 'reset'


�Dispose of the breaker

�Request for repair service

�Apply right voltage





�Cool down and reset

�Replace with the on with

higher interrupting capacity

�Remove the foreign matter





�Change the selected ratings

�Ventilate the panel

�Fasten up




�Change the selected

ratings

�Change the rated

instantaneous

interrupting current or

other ratings

�Repair the motor

�Check the circuit

�Change the selected ratings

�Replace with the one

with smaller ratings

�Review coordination or

change selections



Type of Malfunction Status of Malfunction Cause Countermeasure



80 VITZROTECH MCCB

Malfunction Diagnosis of accessories

Type of Malfunction Status of Malfunction Cause Remedy

�Low voltage Control voltage fallen down or �Improve power source

mistake in voltage selection

Continuous magnetization�Request for repair service, attach auxiliary

�Abnormality of SHT contacts for prevention of burn-out

(Shunt trip mechanism)�Coil burn-out

Continuous magnetization at a �Request for repair service

voltage lower than operating voltage (to improve power source)

Malfunction of For prevention of burn-out �Request for repair service (to replace the coil)

accessories Abnormal voltage applied

�Unable to close UVT�Error in applied frequency or voltage

(Undervoltage trip mechanism)�The magnet does

Voltage drop too high�Improve power source

not attract in

�No tripping operation under �The tripping mechanism of the breaker out of order �Request for repair service

no voltage condition

�Malfunction of AL (alarm switch)�Erroneous assembly �Reassemble the unit

�Malfunction of AX (auxiliary switch)

Malfunction Diagnosis of Leakage Tripping Part

Type of Malfunction Status of Malfunction Cause Remedy

Leakage current flows due to excessive �Adjust the rated detection current

The leakage mechanism trips capacitance caused by lengthy wiring �Relocate the ELB close to the load

simultaneously with power-up Parallel connection of ELB's�Verify the wiring

Malfunction Erroneous connection of the neutral line

Penetration of an excessive surge �Attach a surge absorber on the line

Trips during operation Penetration of an inductive noise from

a high current bus nearby

Abnormal Does not trip when the Incomplete contact of the test button �Send for repair service

Operation test button is pushed

MemoChange the Breakers, Change the Quality


81Memo

Memo

82 VITZROTECH MCCB

MemoChange the Breakers, Change the Quality


83Memo

www.vitzrotech.com

www.vitzrotech.com

2005.06

Seoul office233-3, 1Dong, Sungsu-2Ga, Sungdong-Gu,Seoul, 133-826, KoreaTel: 82-2-4602-000 Fax: 82-2-3436-1900Homepage: www.vitzrotech.comE-mail: [email protected]

Head office & Ansan factory605-2, Sunggok-dong, Ansan City, Kyunggi-Do, 425-833, KoreaTel: 82-31-4892-000 Fax: 82-31-492-2216

WUXI VITZRO ELECTROMECHANICAL CO., LTD74#-D,National Hi-Tech Industrial Development Zone,Wuxi, Jiangsu, China Tel: 86-510-865-8080 Fax: 86-510-865-1919

molded case circuit breakers, mccb miniature circuit...

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