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Surge Protection Device for Elevators KYSPD-40T2-3+1 | Kuangya
Surge protection device for elevators, designed for three-phase + N (3+1 topology) at 230/400 V AC.
Surge ratings: In 20 kA (8/20 µs), Imax 40 kA (8/20 µs), Up ≤ 1.5–2.0 kV depending on Uc.
Features L–N MOV + N–PE GDT coordinated protection, pluggable modules, thermal disconnector, optional RC signaling contacts.
designed to safeguard lift control systems, drives, and associated electrical panels
in residential, commercial, and industrial buildings. Using a 3+1 topology, it provides
coordinated protection for L-N (MOV) and N-PE (GDT) paths in 230/400 V AC networks.This device is built for high reliability in vertical transport applications,
where electrical disturbances may cause malfunction or downtime. Its pluggable design,
thermal disconnector, and clear status indicators simplify service and ensure safety.
Optional RC contacts allow real-time monitoring and integration with building management systems.
Key Features
- Optimized surge protection for elevator systems (control panels, drives, motors).
- 3+1 topology: MOV protection L–N and coordinated GDT+MOV protection N–PE.
- Nominal discharge current (In): 20 kA (8/20 μs); Maximum discharge current (Imax): 40 kA (8/20 μs).
- Voltage protection level (Up): ≤ 1.5–2.0 kV depending on Uc.
- Fast response time < 25 ns for L–N; < 100 ns for N–PE.
- Back-up fuse: max 125 A gL/gG; ISCCR 25 kA AC.
- Optional RC remote signaling contacts: AC 250 V / 0.5 A; DC 250 V / 0.1 A; 125 V / 0.2 A; 75 V / 0.5 A.
- Housing IP20, thermoplastic UL94 V-0; operating temperature -40 °C to +80 °C.
- DIN rail mounting (35 mm, EN 60715); IEC/EN 61643-11 compliant.
Specifications
| Product Code | KYSPD-40T2-3+1 |
|---|---|
| Category | Surge protection device for elevators |
| Nominal System Voltage | 230/400 V AC |
| Topology | 3+1 (L–N MOV, N–PE GDT+MOV) |
| 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) | ≤ 1.5–2.0 kV |
| Response Time | < 25 ns (L–N) / < 100 ns (N–PE) |
| 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 surge protection device for elevators KYSPD-40T2-3+1
Dimensions surge protection device for elevators KYSPD-40T2-3+1
Applications
- Elevator control panels and drive systems in residential and commercial buildings.
- Protection of lift equipment from lightning-induced and switching surges.
- Building electrical panels requiring coordinated 3+1 surge protection with monitoring.
FAQ
- Why is this SPD suitable for elevators? It uses a 3+1 topology optimized for protecting sensitive elevator controls and drives.
- What is its surge capacity? In 20 kA, Imax 40 kA per path.
- Does it support monitoring? Yes, optional RC contacts provide remote fault indication.
- What is the backup fuse rating? Maximum 125 A gL/gG.
- Which standards does it comply with? IEC/EN 61643-11.
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