This Type 1+2 AC surge protective device is designed according to IEC / EN 61643-11 & GB 18802.11 which is for installation at LPZ 0A -2 or higher, protecting low voltage equipment against lightning and surge damages. Applied SPD Modular in Class I+II (Class B+C) for various power supply system
Main features
1. 10/350µs, 8/20µs T1+T2 protection, Iimp 12.5kA, Imax: 50kA.
2. High discharge capacity, quick response, plugged module.
3. Double thermal disconnection devices, providing more reliable protection.
4. Visual window display, green means normal, Red means defect(need to change new module).
5. Remote signaling contact optional.
6. Voltage can be customized.
Model | LY1-12.5 |
Test standard | IEC/EN 61643-11;GB18802.11 |
SPD type | T1+T2/Class I+Class II |
Maximum continuous operating voltage Uc | 275V AC |
Nominal discharge current (8/20µs) | 20kA |
Maximum discharge current(8/20µs) | 50kA |
Iimp current(10/350µs) | 12.5kA |
Poles | 1P, 2P, 3P ,4P ,1P+N-PE, 3P+N-PE |
Voltage protection level Up pv | 1.5kV |
Response time Ta | ≤100ns |
Connection wire specification | 6mm2(L/N); 10mm2(PE) |
Mounting | 35mm Din Rail |
Matched fuse or circuit breaker | 63A |
Type of remote signaling contact (Optional) | C+NC: Normally closed C+NO: Normally open COM: Common contact |
Max. Voltage/Current for remote signaling | 1A/2A/3A 125V AC |
Wiring for remote signaling | 1.5mm2 max. |
Operating temperature | -40°C to +80°C |
Shell material | UL94-V0 fireproof material |








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