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Surge Protective Device EKU5-T2-20

EK ETEK
U5 SPD series No.5
T2 ClassⅡ / Type 2
20 I.max: 20kA
1P No. of Poles: 1:1P; 2:2P; 3:3P; 4:4P; 1PN:1P+NPE; 3PN:3P+NPE
275 Uc: 150:150V; 275:275V; 320:320V; 385:385V; 440:440V
S With Remote Signaling
Product Description About Us

AC SPD (AC Surge Protective Device) refers to a surge protector used in AC power supply systems. It is mainly used to suppress transient overvoltages caused by lightning strikes, switching operations, electrostatic discharge, etc., and to safely discharge surge current, thereby protecting the power distribution equipment, control devices, and terminal loads (such as PLCs, frequency converters, instruments, lighting systems, etc.) in the AC circuit.

No. of Poles Max. Continuous Operating AC Voltage
150V 275V 320V 385V 440V
1P EKU5-T2-20-1P150 EKU5-T2-20-1P275 EKU5-T2-20-1P320 EKU5-T2-20-1P385 EKU5-T2-20-1P440
2P EKU5-T2-20-2P150 EKU5-T2-20-2P275 EKU5-T2-20-2P320 EKU5-T2-20-2P385 EKU5-T2-20-2P440
3P EKU5-T2-20-3P150 EKU5-T2-20-3P275 EKU5-T2-20-3P320 EKU5-T2-20-3P385 EKU5-T2-20-3P440
4P EKU5-T2-20-4P150 EKU5-T2-20-4P275 EKU5-T2-20-4P320 EKU5-T2-20-4P385 EKU5-T2-20-4P440
1P+NPE EKU5-T2-20-1PN150 EKU5-T2-20-1PN275 EKU5-T2-20-1PN320 EKU5-T2-20-1PN385 EKU5-T2-20-1PN440
3P+NPE EKU5-T2-20-3PN150 EKU5-T2-20-3PN275 EKU5-T2-20-3PN320 EKU5-T2-20-3PN385 EKU5-T2-20-3PN440
With Remote Signaling
1P EKU5-T2-20-1P150S EKU5-T2-20-1P275S EKU5-T2-20-1P320S EKU5-T2-20-1P385S EKU5-T2-20-1P440S
2P EKU5-T2-20-2P150S EKU5-T2-20-2P275S EKU5-T2-20-2P320S EKU5-T2-20-2P385S EKU5-T2-20-2P440S
3P EKU5-T2-20-3P150S EKU5-T2-20-3P275S EKU5-T2-20-3P320S EKU5-T2-20-3P385S EKU5-T2-20-3P440S
4P EKU5-T2-20-4P150S EKU5-T2-20-4P275S EKU5-T2-20-4P320S EKU5-T2-20-4P385S EKU5-T2-20-4P440S
1P+NPE EKU5-T2-20-1PN150S EKU5-T2-20-1PN275S EKU5-T2-20-1PN320S EKU5-T2-20-1PN385S EKU5-T2-20-1PN440S
3P+NPE EKU5-T2-20-3PN150S EKU5-T2-20-3PN275S EKU5-T2-20-3PN320S EKU5-T2-20-3PN385S EKU5-T2-20-3PN440S
No. of poles 1P 2P 3P 4P 1P+NPE 3P+NPE
Network systems TN-S, TN-C, TT(only L-N) TN-S TN-C TN-S TT, TN-S
Mode of protection L-PE, N-PE(onlyTN-S),
L-PEN, L-N
L-PE, N-PE L-PEN L-PE, N-PE L-N, N-PE
Protective elements High Energy MOV High Energy MOV and GDT
Maximum continuous operating voltage (L-N) Uc 150V 275V 320V 385V 440V
Maximum continuous operating voltage (N-PE) Uc 255V
Norminal discharge current (8/20μs) (L-N)/(N-PE) ln 10kA
Maximum discharge current (8/20μs) (L-N)/(N-PE) lmax 20kA
Voltage protection level (L-N)/(N-PE) Up 0.8kV/1.5kV 1.0kV/1.5kV 1.2kV/1.5kV 1.45kV/1.5kV 1.6kV/1.5kV
Voltage protection level 5kA Up 0.5kV 0.8kV 1.0kV 1.2kV 1.4kV
Response time (L-N)/(N-PE) tA ≤25ns/≤100ns
Operating temperature range Tu -40℃ to +80℃
Max. Back-up fuse 125 A gL/gG
Operating state/fault indication Green/Red(L-N),Yellow(N-PE)
Cross-section area (Min.)/(Max.) 4mm²/35mm²
Mounting 35 mm DlN Rail, EN 60715
Enclosure material Thermal Plastic UL94-V0
Degree of protection IP20 (built-in)

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