INTRODUCTION
SALIENT FEATURES
DESIGN
CHOICE OF OPERATING KNOBS
MOUNTING
TEKMEC make Rotary Switches are designed and engineered for a
new level of switching efficiency and elegant looks. These
are manufactured in accordance with the latest engineering
practices and emerging out with the largest range of
Rotary Switches. Cam Operated Rotary Switches have versatile
mounting options to suit any kind of application. These switches
are suitable for AC as well as DC applications upto 200Amps.
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Rugged Construction.AestheticDesign.TemperatureWithstand CapabilityEnhancedLife.
On-site adjustment forMountingPlate.
.
SelectionforOperating Knob.
TEKMEC Switches have different switching stages with
double pair of contacts. Each pair consists of two fixed contact plates
and one movable contact plate. The rotation is provided by
movement of slide. The slide rests on a CAM disc. This CAM
disk has grooves according to the sequential operation
rotated by switch handle through a hexagonal shaft.
Operating device can be selected from a wide range of knobs
and handle, depending on operational convenience.
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• • •
PistolGrip LeverType LongHandleBallGrip TearDrop Flag Handle
Knob indicates switching position of the switch. A variety of
elegant colour combinations for plate and knob are offered
to suit the panel and other instruments.
The switches can be mounted on Panel Flush or base mounted.
wide range of mounting combinations are available which can
be supplied on request.
Lock & Key Door Interlock Key Operated Padlock
Front Plate & Knob are available in different type & sizes.
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ENCLOSURE
Aluminium enclosure for Max 2 Switching Operation
Standard Plastic Front and Knob.
Plastic enclosure for Max 2 switching operations.
Sheet Metal enclosures for Motor Control 2 Stage switching.
Operations Forward / Reverse.
Padlocking
Device for M3 Pad Locks (Optional), for Aluminium & Plastic
enclosures for Round Knobs.
T SERIES TG SERIES
CAM OPERATED ROTARY SWITCHES
APPLICATIONS
All switches are suitable for AC application. Most of theswitches are rated for 690V AC and 6 & 10 Amps are ratedfor 440V AC. AC switches are characterised by the "QuickMake-Slow Break" action by the inbuilt feature in ourlatching device and cam construction. These switches can beapplied for DC switching with proper derating and additionalcontacts in series according to the switching voltage.
These are basically ON-OFF switches, which can be used toisolate the power to a particular area of operation. These isolatorsswitches are available in a wide range from single pole to 12 poledesign. Isolators with spring return are also available up to 4poles. Pre-close contacts are used for safety circuits and forneutral and earth line. Isolators generally come underAC1/AC21 duty. Sometimes 3 Pole ON-OFF switches areused to switch ON and OFF the motor, with fuseprotection, when they must be rated for AC3 duty.
Changeover switches, also referred as Double Throw Switches.
They are used to operate two different circuits with different
numbers of input and outputs. These switches find their
application in EB Changeover, auto/manual changeover,
standby / remote changeover etc. Changeover switches without
jumper are used for connecting two different circuits, from two
different sources (potential free contacts). It may be due to two
different operating voltages or any other incompatible lines. All
the Double throw switch contacts by default are of Break Before
Make Type (BBM) to avoid overlapping of different circuits.
These switches are called Gang Switch, as they increase thecapacity of circuits by ganging. They are used for serialingand/or paralleling to drive different circuit capacity. The powerof battery supply can be increased by serial ing.The power of resistor can be increased by paralleling.
These switches can also be called Pole-Way switches, as they aregenerally described by poles and way. Multi step switch does thefunction of connecting different circuits in a common supplyor vice-versa. Application of these switches are innumerable. Tapchanging switch for transformer/stabilizer is an examplechangeover switches are basically two way switches. 1 Pole,2 Pole and 3 Pole are popular for 10, 20, 30 Amps respectively.
With the help of these switches we can measure currents indifferent circuits (with or without current transformer)with a single ammeter and a switch. Measure voltages betweenphases, phase and neutral, with one voltmeter and aswitch. Measure voltages and currents of a circuitswith one voltmeter, one ammeter and a single switch.
AC SWITCHES (Series TG & T)
ISOLATORS
CHANGE OVER SWITCHES
GANG SWITCHES
MULTI STEP SWITCHES
SELECTOR SWITCHES
CAM OPERATED ROTARY SWITCHES
KNOB SCREW
ONN
OFFFF
ONN
OFFFF
KNOB
S.P. LOCK
SCRIPT PLATE
SERRATION PLATE
FRONT PLATE
PANEL PLATE
HEX. SHAFT
SWITCH
PANEL SCREW
CONFORMING STANDARDS
SWITCH LIFE (Under Standard Operating Conditions)
CONTROL SWITCHES
Control switches are unique alternative for many of the
"PUSH BUTTON" Stations, where it is preferred to control a
system with one switch instead of many push buttons. Many
positions of the switch are possible to derive combinations.
These control switches are rated for AC15/DC13. AC15
switches need to carry an in-rush current of 10 times
the normal operating current, while energising solenoids
and coils. Hence, our switches are suitably derated for AC15,
while specifying the normal operating current. Control switch
are used to energise contactors for controlling motor
operations . Number of switches are of spring return type to
enable latching the circuit with contactor NO contact to
faci l i tate tr ipping by contactor tr ipping device .
MOTOR SWITCHES
These switches directly operate the motor with AC3 or AC4
duty. They are mainly used for motor forward-reversing,
star-delta, two speed forward reverse. Programmes are
designed so as to operate with a contactor to build in the
ripping feature on power failure and overload.
DC SWITCHES (Series D)
These switches are designed for DC Switching applications.
These switches are constructed using snap action
mechanism which provides Quick Make Quick Break of
the contacts which is essential for DC switching. The
contacts are of AgCd Double Break Butt Type, housed in a
Glass filled polyamide contact stage and are operated
through Cams for higher Electrical endurance and smooth
operation. Suitable for 90 & 60 switching programmes &
appl icat ions for both AC and DC switching.
0 0
European : IS/IEC-60947-1 : 2003
: IS/IEC-60947-3 : 2003
: IS/IEC-60947-5 : 2003
North America : CSA 22.2 No. 14-1991 ; UL 508 (1994)
MECHANICAL LIFE : 1 Lac Operations @ 300 Cycles/Hour.
ELECTRICAL LIFE : 20,000 Operations at 100% rated duty.
CONTACTS : Double Break Type Ag/AgNi/AgCd.
INSULATION : Glass Filled polyamide with High Tracking Index.
OPERATING TEMPERATURE : -25 C to 55 C.
OPERATING FREQUENCY : Upto 10KHz
HUMIDITY : 95% RH 48 Hours.
0 0
CAM OPERATED ROTARY SWITCHES
FORWARD - REVERSE
TECHNICAL SPECIFICATIONS
AC RATING
TG
32/3
41C
T32
/225
T40/5
40C
T6
3/5
63C
T80/6
08
T1
00
/60
8
Resistance to Surge Pulse Voltage (Ump)
Rated Operational Voltage (Ue)
Isolating Voltage Upto (Uiso)
Rated Uninterrupted Current Ith
V
kV
V
A
690
66666664 4
1251008050403220128
690
690690690690690690690
250250
440
500500415415415
440
CODE
Rated Operational Current Ith (Ie)
AC 21A/AC1
AC 15 220 - 240V
380 - 440V
63
6 7
14 1688
54A
A
A 6
1.0
2.0
100804010 16 25 32
1.5
2.5
---
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Rated Operational Power
AC 3A/AC 23A 3 Phase 220 - 240V
380 - 440V
500 - 690V
AC 3A/AC 23A 1 Phase 110V
220 - 240V
380 - 440V
kW
--
- -
- -
- -
1 11
11
11
111.8 3
1.8 3
3
5.5 7.5
4 22
4
0.37
5.5
5.5
5.5
5.5
0.25
0.75 7.5 7.5
7.5
7.5
0.750.5
15
18.515
15 18.5
30 37
3722 45
0.55 1.5 2.2 2.2
1.10
1.5 3.0
2.5
Short Circuit Capacity
Fuse Size (Type gG/gM)
Rated Fused Short Circuit Current
A
kA
6 63 100804010 16 25 32
33 1010 2020 25255
DC1 (Power) 42V*
DC13 (Control) 24V*
636 100804010 16 25 32
A
A
63 100804016 25 3264
DC Rating
Voltage for each series connected contact
Terminal Cross Section
Single/Multiple MIN
MAX
Fine Strand with Sleeve MIN
MAX
Terminal Screw (Metric Thread)
Terminal Tightening Torque
mm2
mm2
mm2
mm2
0.7
0.7
0.7
0.7
1.5 1.5
1.51.5
44
2.52.5 1064
106 16 25
11 1.5
1.51.5
2.52.5
2.52.5
6
6 10
10
16 254
35
NM 0.50.5 0.8 1.2 1.2 2.52.522
M3.5 M3.5 M3.5 M4 M4 M5 M5 M10 M10
A
A
A
A
A
A
D63D40D16 D25 D32
11
16
25
32
0.5
1.5
3
9
20
0.4
1
2
5
12
3.2
55
660V
40
30
20
15
3.5
63
-
-
-
1 2 3 54 6
24V
30V
48V
60V
110V
48V
60V
95V
120V
220V
70V
90V
140V
180V
330V
95V
120V
190V
240V
440V
120V
180V
240V
300V
550V
145V
145V
290V
360V
Rated Operational CurrentRated Operational VoltageNo. of Series Contacts (V)
D63D40D16 D25 D32CODE
Dimensional AC Equivalent T-63T-40TG-16 T-25 T-32
1 2 3
110V 250V 460V
Rated Operational VoltageNo. of Series Contacts (V)
A
D63D40D16 D25 D32
322512 40 63
Rated Operational Current
DC Rating - Snap Action Switches
kW
kW
kW
kW
kW
CAM OPERATED ROTARY SWITCHES
TG
6/9
1C
TG10
/101
C
TG
25/2
41C
T25
/220
C
TG16
/121
C
The widest range
Tekmec Switchgear & Controls(An ISO 9001 : 2008 CERTIFIED COMPANY)483, Oberoi Compound, Dilshad Garden Indl. Area,G.T. Road , Delhi-110095 (India)PH: +91-11-40507948, 9810041895E-mail : [email protected] Website : www.tekmec.co.in
DC 22 L/R = 2 ms