Schneider LC1DWK12P7 Capacitor Contactor

It is a dedicated capacitor contactor of Schneider TeSys D series, designed for inrush-free switching of three-phase capacitor banks in low-voltage reactive power compensation systems. Capacidad nominal: 63kvar@400V/50Hz, voltaje de la bobina: 230V y.

1. Model Breakdown Explanation

2. Core Specification Parameter Table

3. Optional Accessories List

4. Competidor & Cross-Brand Equivalent Comparison

5. Directrices de selección & Soluciones alternativas

5.1 Three Key Selection Factors

Capacitor Capacity Matching: ≤63kvar for 400V system; ≤104kvar for 690V system, avoid overload

Voltaje de la bobina: Ensure control circuit voltage matches P7 (230V); optional M7(220V)/U7(240V), etc..

Frecuencia de funcionamiento: ≤240 cycles/hour for dynamic compensation; select higher specification or dedicated solution if exceeded

5.2 Recommended Alternative Solutions

5.3 Instalación & Consejos de mantenimiento

1. Wiring distance to capacitor bank ≤ 2m, reduce line inductance to guarantee inrush suppression effect
2. Ensure good heat dissipation; reserve ≥50mm clearance around the contactor
3. Inspect damping resistor regularly (once a year); replace in time if abnormal
4. When auxiliary contacts are used in control circuit, pay attention to contact capacity (5A@230V AC)

LC1DWK12P7 is a dedicated capacitor contactor developed by Schneider for low-voltage reactive power compensation. Its core advantage lies in built-in damping resistor and early-make pole technology, which effectively suppresses switching inrush current and extends the service life of capacitors and contacts. It is widely applied in industrial workshops, edificios comerciales, data centers and other occasions requiring power factor improvement, and is an ideal choice for reactive power compensation cabinets.

Schneider Capacitor Contactor Model List (TeSys D Series)

1. Descripción general del producto

Schneider TeSys D series capacitor contactors are specially designed for low-voltage reactive power compensation systems. Adopting early-make pole + pre-connected damping resistor technology, they effectively suppress capacitor switching inrush current (≤20× rated current), protect capacitors and contacts, and prolong service life.

Main series:

LC1DWK: 63kvar@400V/50Hz

LC1DTK: 40kvar@400V/50Hz

All models: 3PAG(3NO) contactos principales, 1NO+2NC auxiliary contacts, AC coil only (no DC coil version).

2. Regla de nomenclatura del modelo

3. Lista completa de modelos

3.1 LC1DWK Series (63kvar@400V/50Hz)

3.2 LC1DTK Series (40kvar@400V/50Hz)

4. Coil Voltage Code Comparison Table

5. Comparación de parámetros técnicos básicos
   

   Parámetro	LC1DWK12 Series	LC1DTK12 Series	Observaciones
   Capacidad nominal	63kvar@400V/50Hz	40kvar@400V/50Hz	Rated at ambient temperature ≤60°C
   Corriente nominal	90A@400V	58A@400V	Calculated by I=Q/(3​×U)
   Número de polos	3PAG(3NO)	3PAG(3NO)	Normally open main contacts, three-phase dedicated
   Contactos auxiliares	1NO+2NC	1NO+2NC	Instant action for control circuit interlocking
   Tipo de montaje	35carril DIN mm / screw	35carril DIN mm / screw	WK width 85mm; TK width 70mm
   Clase de protección	IP20	IP20	Evita el contacto de los dedos con piezas vivas.
   Frecuencia de funcionamiento	máx.. 240 ciclos/h	máx.. 240 ciclos/h	Meets dynamic compensation demand
   Temperatura ambiente	-5°C~+60°C	-5°C~+60°C	Derating required beyond range
   Vida útil	10 millón / 100,000 ciclos	10 millón / 100,000 ciclos	Under rated conditions
   Mecánico / Eléctrico

   Selección & Recomendación de reemplazo

6.1 Three Core Selection Principles

Capacity Matching: Select TK for 40kvar, WK for 63kvar; no overload allowed in 400V system

Voltaje de la bobina: Match control voltage with code (M7=220V for China; P7=230V for Europe)

Frecuencia de funcionamiento: ≤240 cycles/h for dynamic compensation; choose higher specification or thyristor switch if over limit

6.2 Soluciones alternativas

Large capacity compensation (>63kvar@400V): Standard contactor (p.ej. LC1D40P7) + 6% reactor combination

Ultra-high frequency switching (>240 ciclos/h): Thyristor switch (p.ej. ATS48 series), no mechanical wear

Proyectos sensibles a los costos: Domestic capacitor contactors (p.ej. Chint NC1 series), cost-effective with full basic functions