Type 1 Surge Protection Device KYSPD-25T1-1P | Kuangya

  • Class I / Type 1 SPD for service entrance, 230/400 V AC systems.

  • Impulse current Iimp 25 kA (10/350 μs), In 25 kA, Imax 100 kA.

  • Pluggable module with visual indicator, DIN-rail, optional remote signaling (RC).

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Catégorie :
Le dispositif de protection contre les surtensions de type 1 KYSPD-25T1-1P is designed for main distribution boards and service entrances. It protects low-voltage AC installations against direct lightning currents and high-energy surges per IEC/EN 61643-11. With an impulse discharge current rating of 25 kA per pole (10/350 μs), it provides robust first-stage protection in coordinated systems.

Caractéristiques principales

  • Complies with IEC/EN 61643-11, Class I / Type 1.
  • Impulse discharge current Iimp: 25 kA (10/350 μs); In 25 kA; Imax 100 kA.
  • Uc options: 320 V, 385 V, 440 V AC; nominal system Uo/Un 230/400 V AC.
  • Pluggable cartridge with thermal disconnector and green/red status window.
  • Optional RC terminals for remote status signaling.
  • Housing UL94 V-0, IP20 (built-in); 35 mm DIN rail mounting.
  • Suitable for TN-S / TN-C / TT systems (correct L-N / N-PE wiring).
  • Ideal as a dispositif de protection contre les surtensions de type 1 at the service entrance in coordinated SPD schemes.

Spécifications

ParamètresValue
Product CodeKYSPD-25T1-1P
CategoryType 1 / Class I SPD
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 (by variant)
Temps de réponse< 25 ns
Follow Current Interrupt Rating100 A RMS
Short-Circuit Current Rating (ISCCR)50 kA
Backup Fuse (max)315 A gL/gG
Température de fonctionnement-40 °C … +70 °C
Montage35 mm DIN rail (EN 60715)
EnclosureThermoplastic, UL94 V-0
Protection DegreeIP20 (built-in)
Remote SignalingOptional RC contacts
NormesIEC 61643-11 / EN 61643-11

Câblage et dimensions

  • Connection diagram: kyspd-25t1-connection
  • SPD-T1-1P-wiring-diagram
  • Dimensions: kyspd-25t1-dimensions
  • SPD-T1-1P-Dimension

Applications

  • Service entrance / main distribution (LPZ 0→1) — first stage dispositif de protection contre les surtensions de type 1.
  • Industrial & commercial buildings with high lightning exposure.
  • Upstream in coordinated protection with downstream Type 2 / Type 3 SPDs.

FAQ

Where should this SPD be installed?

At the service entrance or main distribution board, as the first protection stage.

Does it support TT and TN systems?

Yes, with proper wiring modes L-N and N-PE.

What backup fuse is required?

Maximum 315 A gL/gG, as recommended in technical data.

Can it be replaced easily?

Yes, the cartridge is pluggable and field-replaceable.

Is remote monitoring available?

Yes, RC contacts are optional for status signaling.

What is the ISCCR rating?

50 kA short-circuit withstand capacity.

What happens if the module fails?

The thermal disconnector isolates it and the indicator turns red.

What standards does it meet?

IEC/EN 61643-11 for surge protective devices.

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