1
AC Surge Protection Devices
Type 1 (T1, Class I, Class B)
SPD�according to EN 61643-11 / IEC 61643-11
Maximum continuous operational voltage U c
from 150 V up to 600 V AC
Versions with 1P, 1P+N, 2P, 2P+N, 3P,
3P+N and 4P connection
Without remote indication contact
FLP
Product family
FLP
Type Key
Surge Arrester - Type 1 FLP50GR
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4
Type of connection
1: 1P2: 2P3: 3P4: 4P
1+1: 1P+N3+1: 3P+N
NPE
50
Current
Iimp (10/350 µs)
50 kA (L-N)
100 kA (N-PE)
GR
Spark Gap
Graphite
275
Max. oper. voltage
275 V AC320 V AC385 V AC440 V AC
150 V AC
600 V AC
© 2018 Wenzhou Arrester Electric Co., Ltd.Specifications are subject to change without notice.
Revised: 01/01/19
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The FLP50GR line is a group of Class I Surge Protective Devices. They are intended as a protection
against direct hit of lightning strokes of high intensities or in installation with often occurrence of
lightning strokes. In standard three phase TN-C grid, they provides protection over LPL I requirements
given in EN 62305 with total lightning current introduced into electrical installation over 100 kA and total
lightning stroke current 210 or 280 kA based on physical configuration and mutual position of grounding
point of lightning rod, grounding point of the electrical installation and place of SPD installation.
The design of FLP50GR is fully based on Spark Gap solution. It brings very high capability and life time
and full insulation in case of no overvoltage is present. Thus, these SPDs can be used also upstream to
energy meters and can be intended for IT grids (with respective special tests).
The high value of Iimp makes these SPDs suitable also for single phase outlets which are wired out of LPZ
0-1 and thus can be hit with direct lightning stroke. Due to the single phase cable, the total lightning current
is split to 3 conductors only and intensity per conductor is thus higher than in the case of ingoing three
phase cable.
Type 1 SPD (T1, Class I, B) complete devices, I = 50 kA (10/350 µs) imp
Max. oper. Connection Signaling Article No. Type Packing voltage U
c contact
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150 V AC 1P no 5015011 1/42FLP50GR-150/1 150 V AC 1P+N no 5015013 1/24FLP50GR-150/1+1 150 V AC 2P no 5015021 1/24FLP50GR-150/2 150 V AC 2P+N no 5015023 1/12FLP50GR-150/2+1 150 V AC 3P no 5015031 1/12FLP50GR-150/3 150 V AC 3P+N no 5015033 1/12FLP50GR-150/3+1 150 V AC 4P no 5015041 1/12FLP50GR-150/4
Surge Arrester - Type 1 FLP50GR
• Maximum impulse current I imp 50 kA (10/350 μs) per module and 100 kA (10/350 μs) for moduleFLP100GRD-NPE• Nominal discharge current In 50 kA (8/20 μs) per module and 100 kA (8/20 μs) for NPE (+1) module• Maximum continuous operating voltage U 385 V AC per FLP50GR module and 260 V AC for modulec FLP100GRD-NPE• Maximum continuous operational voltage Uc 150 V AC up to 600 V AC per module and 505 V AC for NPE (+1) module• Due to I imp 50 kA per module suitable for LPL I - LPL IV according to EN 62305 in standard 3-phase TN-C and TN-S installations
© 2018 Wenzhou Arrester Electric Co., Ltd.Specifications are subject to change without notice.
Revised: 01/01/19
275 V AC 1P no 5027511 1/42FLP50GR-275/1 275 V AC 1P+N no 5027513 1/24FLP50GR-275/1+1 275 V AC 2P no 5027521 1/24FLP50GR-275/2 275 V AC 2P+N no 5027523 1/12FLP50GR-275/2+1 275 V AC 3P no 5027531 1/12FLP50GR-275/3 275 V AC 3P+N no 5027533 1/12FLP50GR-275/3+1 275 V AC 4P no 5027541 1/12FLP50GR-275/4
320 V AC 1P no 5032011 1/42FLP50GR-320/1 320 V AC 1P+N no 5032013 1/24FLP50GR-320/1+1 320 V AC 2P no 5032021 1/24FLP50GR-320/2 320 V AC 2P+N no 5032023 1/12FLP50GR-320/2+1 320 V AC 3P no 5032031 1/12FLP50GR-320/3 320 V AC 3P+N no 5032033 1/12FLP50GR-320/3+1 320 V AC 4P no 5032041 1/12FLP50GR-320/4
• Coordination with class II SPDs: SLP40-440/xxx – direct coordination SLP40-275/xxx – coordination with cable of minimum length of 10 m in between FLP50GR and SLP40-275/xxx
Max. oper. Connection Signaling Article No. Type Packing voltage U
c contact
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© 2018 Wenzhou Arrester Electric Co., Ltd.Specifications are subject to change without notice.
Revised: 01/01/19
385 V AC 1P no 5038511 1/42FLP50GR-385/1 385 V AC 1P+N no 5038513 1/24FLP50GR-385/1+1 385 V AC 2P no 5038521 1/24FLP50GR-385/2 385 V AC 2P+N no 5038523 1/12FLP50GR-385/2+1 385 V AC 3P no 5038531 1/12FLP50GR-385/3 385 V AC 3P+N no 5038533 1/12FLP50GR-385/3+1 385 V AC 4P no 5038541 1/12FLP50GR-385/4
440 V AC 1P no 5044011 1/42FLP50GR-440/1 440 V AC 1P+N no 5044013 1/24FLP50GR-440/1+1 440 V AC 2P no 5044021 1/24FLP50GR-440/2 440 V AC 2P+N no 5044023 1/12FLP50GR-440/2+1 440 V AC 3P no 5044031 1/12FLP50GR-440/3 440 V AC 3P+N no 5044033 1/12FLP50GR-440/3+1 440 V AC 4P no 5044041 1/12FLP50GR-440/4
600 V AC 1P no 5060011 1/42FLP50GR-600/1 600 V AC 1P+N no 5060013 1/24FLP50GR-600/1+1 600 V AC 2P no 5060021 1/24FLP50GR-600/2 600 V AC 2P+N no 5060023 1/12FLP50GR-600/2+1 600 V AC 3P no 5060031 1/12FLP50GR-600/3 600 V AC 3P+N no 5060033 1/12FLP50GR-600/3+1 600 V AC 4P no 5060041 1/12FLP50GR-600/4
Type 1 SPD (T1, Class I, B) complete devices, I = 50 kA (10/350 µs) imp
Surge Arrester - Type 1 FLP50GR
255 V AC NPE no 1025511 1/42FLP100GRD-NPE
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Technical Data FLP50GR
Surge Protection Devices Type 1, I = 50 kA (10/350 µs)imp
General parameters
Suitable for protection of electrical installation against the effects of atmospheric overvoltage when a direct lightning strike to the building equipped with a lightning rod or lightning to the outdoor power line
Due to I imp 50 kA per module suitable for LPL I - IV according to EN 62305 in standard 3-phase TN-C and TN-S installations
© 2018 Wenzhou Arrester Electric Co., Ltd.Specifications are subject to change without notice.
Revised: 01/01/19
1P, 2P, 3P, 4P, 1P+N, 2P+N, 3P+N(L-N/PE/PEN connection)
1P+N, 2P+N, 3P+N(N-PE connection)
Type 1
Technology Graphite
Nominal a.c. voltage Un
Max. continuous operational voltage Uc
255 V AC
Nominal frequency f 50 / 60 Hz
Nominal discharge current I (8/20 µs)n
50 kA
Max. impulse current I (10/350 µs)imp
100 kA
Voltage protection�level U 1.5 kVp
150 V AC 275 V AC 320 V AC
385 V AC 440 V AC 600 V AC
Follow current limitation / Selectivity no tripping of a 20 A gL/gG fuse up to 50 k (prosp.)Arms
fiFollow current extinguishing capability I 50 A �/ 100 Arms rms
1200 V / 200 ms
230 V / 120 min 530 V / 120 min
530 V / 120 min
530 V / 120 min
765 V / 120 min 915 V / 120 minTemporary overvoltage (TOV) (U )T
- Characteristic (withstand)
Response time ta ≤ 100 ns
315 A gL/gGMax. backup fuse (L) up to I = 50 kArms
Max. backup fuse (L-L')
Number of ports 1
Type of LV system TN-C, TN-S, TT (1P+N, 3P+N)
SPD according toEN 61643-11 / IEC 61643-11
120 V AC 230 V AC 230 V AC
230 V AC 400 V AC 480 V AC 230 V AC
1 2 3
4 5 6
1 2 3
4 5 6
1 2 3
4 5 6
Electrical parameters
50 kA
100 kA
Max discharge current I (8/20 µs)max
-
Impulse current specific energy W/R 156,50 kJ/ohms 2,5 MJ/ohms
125 A gL/gG
Protection fuction Overcurrent
2.0 kV
144
90
L2 L3
PE
L1 L1′ L3′L2′ N′N
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
144
90
L2 L3
N
L1 L1′ L3′L2′ PE′PE
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
FLP100GRD-NPESurge Protector
IP20
Up 1,5 kV
255 VUc (50/60Hz)
T2100 kAIn (8/20 ) μs
T1100 kAIimp (10/350 ) μs
108
90
L1
PEN
L1′ L2 L2′ L3 L3′
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
108
90
LL1 L2L1 ′ L2′
N
PE′PE
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
FLP100GRD-NPESurge Protector
IP20
Up 1,5 kV
255 VUc (50/60Hz)
T2100 kAIn (8/20 ) μs
T1100 kAIimp (10/350 ) μs
72
90
L
PE
L′ N N′
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
72
90
L L′ PE
N
PE′
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
FLP100GRD-NPESurge Protector
IP20
Up 1,5 kV
255 VUc (50/60 Hz)
T2100 kAIn (8/20 ) μs
T1100 kAIimp (10/350 ) μs
Acessibility Inaccessible
Device length 90 mm
Device width 36, 72, 108, 144 mm
Device height 65 mm
Method of mounting fixed
Mechanical parameters
Degree of protection IP 20
Enclosure material thermoplastic
installation indoor
Range of operating temperatures TU -40 °C +70 °C...
Atmospheric pressure and altitude 80k Pa ... 106k Pa, -500 m ... 2000 m
Humidity range 5% ... 95%
Place of installation
For mounting on 35 mm DIN rail acc. to EN 60715
Cross-sectional area (min.)
Cross-sectional area (max.)
210 mm solid /flexible2 235 mm stranded / 50 mm flexible
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Technical Data FLP50GR
Surge Protection Devices Type 1, I = 50 kA (10/350 µs)imp
© 2018 Wenzhou Arrester Electric Co., Ltd.Specifications are subject to change without notice.
Revised: 01/01/19
Dimensions
6550
5
1P 1P+N 2P
3P+N 4P
3P2P+N
36
90
L
PE
L′
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
Basic circuit diagram
6www.lsp-international.com
Technical Data FLP50GR
© 2018 Wenzhou Arrester Electric Co., Ltd.Specifications are subject to change without notice.
Revised: 01/01/19
Surge Protection Devices Type 1, I = 50 kA (10/350 µs)imp
1P
PE
L L ′
1P+N
N
PE L L ′ PE ′
2P
PE
N N ′L L ′
2P+N
N
PE L2 L2 ′L1 L1 ′ PE′
3P
PEN
L3 L3 ′L2 L2 ′L1 L1 ′
3P+N
N
PE L3 L3 ′L2 L2 ′L1 L1 ′ PE ′
4P
PE
N N′L3 L3 ′L2 L2 ′L1 L1 ′
SPD coordination
Class I Class II
SLP40-440/xxx 0
SLP40-275/xxx ≥ 10 m
Imin
FLP50GR SLP40
FLP50GR
Min. cable length lmin
FLP50GR
SLP40
T2
L
PE
Green-ok / Red-defect
L
PE
L′
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
www.lsp-international.com
Technical Data FLP50GR
© 2018 Wenzhou Arrester Electric Co., Ltd.Specifications are subject to change without notice.
Revised: 01/01/19
Surge Protection Devices Type 1, I = 50 kA (10/350 µs)imp
Connection diagrams, protection mode
TN-C (3P)
F1L1
L2
L3
F2
L2'
L3'
PEN
L1'
TN-S, TT (3P+N)
F1L1
L2
L3
F2
L1'
L2'
L3'
N
PE'PE
TN-S (4P)F1
L1'L2'L3'N'PE'
L1L2L3N
PE
F2
F1L1
L2
F2
L2'
N
L1'
TN-S, TT (2P+N)
PE'PE
F1
PE
LN
L'N'
TN-S (2P)
F2
(1P)F1
PE
L L'
F2
N
L L'
F1
F2
TN-S, TT (1P+N)
PE'PE
L1
PEN
L1′ L2 L2′ L3 L3′
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
L2 L3
N
L1 L1′ L3′L2′ PE′PE
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
FLP100GRD-NPESurge Protector
IP20
Up 1,5 kV
255 VUc (50/60Hz)
T2100 kAIn (8/20 ) μs
T1100 kAIimp (10/350 ) μs
L2 L3
PE
L1 L1′ L3′L2′ N′N
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
LL1 L2L1 ′ L2′
N
PE′PE
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
FLP100GRD-NPESurge Protector
IP20
Up 1,5 kV
255 VUc (50/60Hz)
T2100 kAIn (8/20 ) μs
T1100 kAIimp (10/350 ) μs
L
PE
L′ N N′
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
L L′ PE
N
PE′
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
FLP100GRD-NPESurge Protector
IP20
Up 1,5 kV
255 VUc (50/60 Hz)
T2100 kAIn (8/20 ) μs
T1100 kAIimp (10/350 ) μs
L
PE
L′
FLP50GR-275
Surge Protector
IP20
T1
275 VUc (50/60Hz)
50 kAIimp (10/350 ) μs
Up 2,0 kV
315 A
7