Surge Protection Device for Electrical Panel KYSPD-25T1-4P | Kuangya

  • Four-pole surge protection device for electrical panel designed for 230/400 V AC systems.

  • Withstands impulse current Iimp 25 kA (10/350 μs) per pole; In 25 kA; Imax 100 kA.

  • Pluggable cartridge with thermal disconnector, visual indicator, and optional RC signaling

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Category:
The Kuangya KYSPD-25T1-4P is a four-pole surge protection device for electrical panel applications. Designed for main distribution boards and service entrances, this unit complies with IEC/EN 61643-11 Class I standards. It withstands high-energy lightning currents up to Iimp 25 kA per pole (10/350 μs). Installed as the first stage, this surge protection device for electrical panel coordinates with downstream Type 2 and Type 3 SPDs for complete system safety.

Key Features

  • Complies with IEC/EN 61643-11, Class I / Type 1.
  • Four-pole configuration; Iimp 25 kA per pole; In 25 kA; Imax 100 kA.
  • Nominal system voltage: Uo/Un 230/400 V AC; Uc options: 320 / 385 / 440 V AC.
  • Voltage protection level (Up): ~1.6–2.0 kV depending on variant.
  • Fast response time < 25 ns.
  • Pluggable cartridge design with green/red visual status window.
  • Optional RC remote signaling contacts.
  • Housing: UL94 V-0 thermoplastic; IP20 built-in; DIN 35 mm rail mount.
  • Robust first-stage surge protection device for electrical panel installations.

Specifications

ParameterValue
Product CodeKYSPD-25T1-4P
CategorySurge Protection Device for Electrical Panel (Type 1 / Class I)
Nominal System Voltage (Uo/Un)230 / 400 V AC
Max. Continuous Operating Voltage (Uc)320 / 385 / 440 V AC
Nominal Discharge Current (In, 8/20 μs)25 kA
Max. Discharge Current (Imax, 8/20 μs)100 kA
Impulse Discharge Current (Iimp, 10/350 μs)25 kA per pole
Voltage Protection Level (Up)~1.6–2.0 kV
Response Time< 25 ns
Short-Circuit Current Rating (ISCCR)50 kA
Backup Fuse (max)315 A gL/gG
Operating Temperature-40 °C … +70 °C
Mounting35 mm DIN rail (EN 60715)
EnclosureThermoplastic, UL94 V-0
Protection DegreeIP20 (built-in)
Remote SignalingOptional RC contacts
StandardsIEC 61643-11 / EN 61643-11

This surge protection device for electrical panel is suitable for TN-S, TN-C, and TT systems, offering reliable lightning protection in demanding environments.

Wiring & Dimensions

  • Connection diagram: kyspd-25t1-4p-connection
  • surge protection device for electrical panel wiring diagram
  • Dimensions: kyspd-25t1-4p-dimensions
  • surge protection device for electrical panel dimensions

Applications

  • Main distribution boards and service entrance electrical panels.
  • First-stage surge protection device for electrical panel in coordinated systems.
  • Industrial and commercial facilities exposed to lightning surges.

FAQ

Where should KYSPD-25T1-4P be installed?

It should be installed at the service entrance or electrical panel as the first-stage surge protection device for electrical panel.

What is the impulse discharge current rating?

This surge protection device for electrical panel can handle Iimp 25 kA per pole (10/350 μs).

Does it support multiple earthing systems?

Yes, it is suitable for TN-S, TN-C, and TT systems.

Can the cartridge be replaced?

Yes, the pluggable module allows quick replacement for maintenance.

Is remote signaling available?

Optional RC contacts provide remote status indication for this surge protection device for electrical panel.

What standards does it comply with?

IEC/EN 61643-11 for surge protective devices.

Get a Quote · Related: AC MCB, Manual Transfer Switch

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