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?

Nominal discharge current 10 kA, maximum discharge current 20 kA.

In 230/400 V AC three-phase + N systems, especially 240V distribution panels.

Does it support monitoring?

Yes, optional RC contacts provide remote signaling.

240v surge protection device | Reliable KYSPD-20T2+3-3+1

Name: 240V Surge Protection Device KYSPD-20T2+3-3+1
Brand: Kuangya

The Kuangya KYSPD-20T2+3-3+1 is a 240V surge protection device designed for three-phase + neutral systems at 230/400 V AC. It uses a 3+1 topology, with MOV protection for L–N and coordinated GDT+MOV protection for N–PE, offering reliable suppression of transient overvoltages from lightning and switching surges.Its compact pluggable cartridge design allows easy replacement, while integrated thermal disconnectors ensure safe operation. Visual green/red indicators provide status feedback, and optional RC contacts enable remote fault monitoring.

Características principales

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).
Tiempo de respuesta: < 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.
Montaje en carril DIN (35 mm, EN 60715); conforme a IEC/EN 61643-11.

Especificaciones

Código del producto	KYSPD-20T2+3-3+1
Categoría	240V surge protection device
Tensión nominal del sistema	230/400 V CA
Topología	3+1 (L–N MOV, N–PE GDT+MOV)
Tensión de funcionamiento continuo (Uc)	75 / 150 / 275 / 320 / 385 / 440 V
Corriente nominal de descarga (In, 8/20 μs)	10 kA
Corriente de descarga máxima (Imax, 8/20 μs)	20 kA
Nivel de protección de tensión (arriba)	≤ 0.3–1.8 kV
Tiempo de respuesta	< 25 ns (L–N), < 100 ns (N–PE)
Fusible de reserva (máx.)	63 A gL/gG
Corriente nominal de cortocircuito (ISCCR)	10 kA AC
Temperatura de funcionamiento	-40 °C to +70 °C
Montaje	Carril DIN de 35 mm, EN 60715
Cerramiento / Protección	Termoplástico UL94 V-0 / IP20
Señalización remota (RC)	Opcional; CA 250 V / 0,5 A; CC 250 V / 0,1 A; 125 V / 0,2 A; 75 V / 0,5 A
Normas	CEI/EN 61643-11

Cableado y dimensiones

Connection diagram 240V surge protection device KYSPD-20T2+3-3+1

Dimensions 240V surge protection device KYSPD-20T2+3-3+1

Aplicaciones

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.

PREGUNTAS FRECUENTES

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.

Para precios detallados y asistencia técnica, por favor ContactoExplore más soluciones Kuangya: DC SPD, Protección contra sobretensiones de CA.

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