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Type 2 Surge Protection Device 4P KYSPD-40T2-4P | Kuangya
Type 2 surge protection device 4P for three-phase + N (L1-L2-L3-N) AC systems.
Rated discharge current In 20 kA (8/20 µs), maximum discharge Imax 40 kA (8/20 µs), voltage protection level Up ≤ 1.3–2.0 kV (depending on Uc).
Pluggable cartridge, thermal disconnector with fault indicator, optional RC contacts, DIN-rail mounting.
designed for three-phase systems with neutral (L1, L2, L3, N). It offers reliable
protection against switching surges and indirect lightning strikes in 230/400 V AC
TN-S and TT networks.Using high-energy MOV elements, this device provides robust surge protection
with pluggable replaceable modules. Integrated thermal disconnectors ensure safe
operation, while clear green/red indicators display status. Optional RC contacts
allow monitoring integration with BMS or PLC systems.
Key Features
- Class II / Type 2 surge protective device (4P: L1, L2, L3, N).
- Nominal discharge current (In): 20 kA (8/20 μs).
- Maximum discharge current (Imax): 40 kA (8/20 μs).
- Voltage protection level (Up): ≤ 1.3–2.0 kV depending on Uc.
- Response time < 25 ns.
- Back-up fuse: max 125 A gL/gG; ISCCR 25 kA AC.
- Pluggable, serviceable modules with thermal disconnector and green/red fault indicator.
- Optional RC signaling contacts: AC 250 V / 0.5 A; DC 250 V / 0.1 A; 125 V / 0.2 A; 75 V / 0.5 A.
- Thermoplastic UL94-V0 housing, IP20; operating temperature -40 °C to +80 °C.
- DIN rail mounting (35 mm, EN 60715); complies with IEC/EN 61643-11.
Specifications
| Product Code | KYSPD-40T2-4P |
|---|---|
| Category | Type 2 surge protection device 4P |
| Nominal System Voltage | 230/400 V AC |
| Poles | 4P (L1, L2, L3, N) |
| Continuous Operating Voltage (Uc) | 230 V / 320 V / 385 V |
| Nominal Discharge Current (In, 8/20 μs) | 20 kA |
| Maximum Discharge Current (Imax, 8/20 μs) | 40 kA |
| Voltage Protection Level (Up) | ≤ 1.3–2.0 kV |
| Response Time | < 25 ns |
| Back-Up Fuse (max) | 125 A gL/gG |
| Short-Circuit Current Rating (ISCCR) | 25 kA AC |
| Operating Temperature | -40 °C to +80 °C |
| Mounting | 35 mm DIN rail, EN 60715 |
| Enclosure / Protection | Thermoplastic UL94 V-0 / IP20 |
| Remote Signaling (RC) | Optional; AC 250 V / 0.5 A; DC 250 V / 0.1 A; 125 V / 0.2 A; 75 V / 0.5 A |
| Standards | IEC/EN 61643-11 |
Wiring & Dimensions
Connection diagram type 2 surge protection device 4P KYSPD-40T2-4P
Dimensions type 2 surge protection device 4P KYSPD-40T2-4P
Applications
- Main distribution boards in three-phase + N systems for residential, commercial, and industrial buildings.
- Panels requiring coordinated 4P surge protection in TT and TN-S networks.
- Projects needing serviceable surge modules with remote monitoring capability.
FAQ
- What class of SPD is KYSPD-40T2-4P? It is Class II, Type 2 according to IEC/EN 61643-11.
- What is its discharge capacity? In 20 kA, Imax 40 kA per pole.
- Which systems is it designed for? Three-phase + N (L1-L2-L3-N) 230/400 V AC TT/TN networks.
- Does it support remote signaling? Yes, optional RC contacts are available.
- What is the maximum backup fuse rating? 125 A gL/gG.
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