This 40kA Type 2 AC SPD Class II surge protector device is applied low voltage standard IEC/EN 61643-11 to protect against AC power line system and other equipment from over voltage and instantaneous over voltage damage. It has advantages of large discharge current, fast respond time and low residual voltage.
Main features
1. High discharge capacity, quick response, plugged module.
2. Fast response time, din rail installation.
3. Double thermal disconnection devices, provide more reliable protection.
4. Visual window indication, green window means normal, red means defect, need to change module.
5. Remote signaling contact optional.
6. Voltage can be customized.
7.Max discharge voltage for 40kA, T2 Class II thunder and lightning protection.
Model | LY1-C40 |
Maximum Continuous Operating Voltage Uc | 385V AC |
SPD Type | T2/Class II/Class C |
Nominal Discharge Current (8/20µs) | 20kA |
Maximum Discharge Current(8/20µs) | 40kA |
Voltage Protection Level Up | ≤1.8kV |
Response Time tA | ≤25ns |
Indication Method | Visible window,Green=normal, Red=defect |
Min. sectional area of incoming wire L/N | 4mm2 |
Min. sectional area of incoming ground wire PE | 6mm2 |
Method of Installation | 35mm Din Rail |
Material of shell | UL94-V0 firproof |
Protection level of outer Shell | IP20 |
Working temperature | -25 -+70ºC |
Test standard | IEC/EN 61643-11/GB18802.11 |
Poles | 1P/2P/3P/4P/1P+N-PE/3P+N-PE |






The main products include power supply surge protector, photovoltaic DC surge protector, signal surge protector, lightning protection box, PDU lightning protection socket, etc. The products have passed the inspection and certification of Beijing Lightning Protection Device Test Center and Shanghai Lightning Protection Center, and have CQC, TUV, CB, CE, ROHS and other certificates.
Our company undertakes OEM and ODM production business, has spacious and bright modern factory buildings, standard production lines, and perfect production and quality control processes. We sincerely invite major companies to cooperate.
