240v Surge Protection Device KYSPD-40T2-3P | Kuangya

  • 240v surge protection device for three-phase 3P (L1-L2-L3) AC networks, suitable for TN-S, TN-C, and TT 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 with thermal disconnector, visual fault indicator, optional RC contacts, DIN-rail mounting.

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Category:
The Kuangya KYSPD-40T2-3P is a 240v surge protection device
designed for three-phase systems (L1, L2, L3). It provides Type 2
protection against transient overvoltages caused by indirect lightning
and switching operations in 230/400 V AC TN-S, TN-C, and TT networks.Equipped with high-capacity MOV elements, the device ensures reliable
surge suppression with a pluggable module structure for easy service.
Integrated thermal disconnectors and clear fault indicators guarantee safety,
while optional RC contacts enable monitoring integration with building
management systems (BMS) or PLC.

Key Features

  • Class II / Type 2 surge protection for 240 V three-phase systems.
  • 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 (230–385 V).
  • Response time < 25 ns, ensuring rapid surge suppression.
  • Back-up fuse: max 125 A gL/gG; ISCCR up to 25 kA AC.
  • Pluggable module with thermal disconnector and visible green/red status.
  • 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.
  • Mounting: 35 mm DIN rail (EN 60715); complies with IEC/EN 61643-11.

Specifications

Product CodeKYSPD-40T2-3P
Category240v surge protection device
Nominal System Voltage230/400 V AC
Poles3P (L1, L2, L3)
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
Mounting35 mm DIN rail, EN 60715
Enclosure / ProtectionThermoplastic 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
StandardsIEC/EN 61643-11

Wiring & Dimensions

Connection diagram 240v surge protection device KYSPD-40T2-3P

Connection diagram 240v surge protection device KYSPD-40T2-3P

Dimensions 240v surge protection device KYSPD-40T2-3P

Dimensions 240v surge protection device KYSPD-40T2-3P

Applications

  • Three-phase 240 V AC distribution boards in residential, commercial, and industrial facilities.
  • Coordination with upstream Type 1 arresters in TT and TN systems.
  • Electrical panels requiring reliable 3P surge protection with monitoring options.

FAQ

  • What class of SPD is KYSPD-40T2-3P? It is Class II, Type 2 according to IEC/EN 61643-11.
  • What is its discharge capacity? In 20 kA, Imax 40 kA per phase.
  • Can it be used in 240 V three-phase systems? Yes, it is designed for L1-L2-L3 protection in 230/400 V AC networks.
  • Does it provide remote signaling? Yes, optional RC contacts are available.
  • What is the maximum backup fuse rating? 125 A gL/gG.
For detailed pricing and technical support, please contact us.Explore more Kuangya products: DC SPD, AC Surge Protection.

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