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240V Surge Protection Device KYSPD-20T2+3-3P+1N | Kuangya
240V surge protection device with 3+1 topology (L1-L2-L3-N) for 230/400 V AC networks.
Surge ratings: In 10 kA (8/20 µs), Imax 20 kA (8/20 µs), Up ≤ 0.3–1.8 kV depending on Uc.
Combines MOV + GDT technology for L–N and N–PE coordinated protection, pluggable modules, optional RC signaling contacts.
Key Features
- Class II+III / Type 2+3 surge protection device with 3+1 topology.
- Nominal discharge current (In): 10 kA (8/20 μs).
- Maximum discharge current (Imax): 20 kA (8/20 μs).
- Voltage protection level (Up): ≤ 0.3–1.8 kV depending on Uc (75–440 V).
- Response time: < 25 ns (L–N), < 100 ns (N–PE).
- Back-up fuse: max 63 A gL/gG; ISCCR 10 kA AC.
- Pluggable module, thermal disconnector, green/red fault status indicator.
- Optional RC remote signaling contacts for BMS/PLC integration.
- Housing IP20, UL94 V-0 thermoplastic; operating temperature -40 °C to +70 °C.
- DIN rail mounting (35 mm, EN 60715); IEC/EN 61643-11 compliant.
Specifications
| Product Code | KYSPD-20T2+3-3+1 |
|---|---|
| Category | 240V surge protection device |
| Nominal System Voltage | 230/400 V AC |
| Topology | 3+1 (L–N MOV, N–PE GDT+MOV) |
| Continuous Operating Voltage (Uc) | 75 / 150 / 275 / 320 / 385 / 440 V |
| Nominal Discharge Current (In, 8/20 μs) | 10 kA |
| Maximum Discharge Current (Imax, 8/20 μs) | 20 kA |
| Voltage Protection Level (Up) | ≤ 0.3–1.8 kV |
| Response Time | < 25 ns (L–N), < 100 ns (N–PE) |
| Back-Up Fuse (max) | 63 A gL/gG |
| Short-Circuit Current Rating (ISCCR) | 10 kA AC |
| Operating Temperature | -40 °C to +70 °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 240V surge protection device KYSPD-20T2+3-3+1
Dimensions 240V surge protection device KYSPD-20T2+3-3+1
Applications
- Main distribution boards in residential and commercial buildings (240V systems).
- Protection of elevators, industrial control systems, and sensitive electronics.
- Panels requiring coordinated 3+1 surge protection in TT/TN-S networks.
FAQ
- What topology does KYSPD-20T2+3-3+1 use? It uses 3+1 topology: L–N MOV, N–PE GDT+MOV.
- What is its surge discharge capacity? In 10 kA, Imax 20 kA.
- Where is it applied? In 230/400 V AC three-phase + N systems, especially 240V distribution panels.
- Does it support monitoring? Yes, optional RC contacts provide remote signaling.
- What is the maximum back-up fuse rating? 63 A gL/gG.
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