Contator capacitor Schneider LC1DWK12P7

It is a dedicated capacitor contactor of Schneider TeSys D series, projetado para comutação sem inrush de bancos de capacitores trifásicos em sistemas de compensação de potência reativa de baixa tensão. Capacidade nominal: 63esquerda@400V/50Hz, tensão da bobina: 230V e.

1. Model Breakdown Explanation

2. Core Specification Parameter Table

3. Optional Accessories List

4. Competitor & Comparação equivalente entre marcas

5. Diretrizes de seleção & Soluções Alternativas

5.1 Three Key Selection Factors

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

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

Frequência operacional: ≤240 cycles/hour for dynamic compensation; select higher specification or dedicated solution if exceeded

5.2 Recommended Alternative Solutions

5.3 Instalação & Dicas de manutenção

1. Wiring distance to capacitor bank ≤ 2m, reduce line inductance to guarantee inrush suppression effect
2. Garanta uma boa dissipação de calor; 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, edifícios comerciais, 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. Visão geral do produto

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: 63esquerda@400V/50Hz

LC1DTK: 40esquerda@400V/50Hz

All models: 3P(3NÃO) principais contatos, 1NO+2NC auxiliary contacts, AC coil only (no DC coil version).

2. Regra de nomenclatura de modelo

3. Lista completa de modelos

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

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

4. Coil Voltage Code Comparison Table

5. Core Technical Parameter Comparison
   

   Parâmetro	LC1DWK12 Series	LC1DTK12 Series	Observações
   Capacidade nominal	63esquerda@400V/50Hz	40esquerda@400V/50Hz	Rated at ambient temperature ≤60°C
   Corrente nominal	90A@400V	58A@400V	Calculado por I=Q/(3​×U)
   Número de poloneses	3P(3NÃO)	3P(3NÃO)	Normally open main contacts, three-phase dedicated
   Contatos Auxiliares	1NÃO+2NC	1NÃO+2NC	Instant action for control circuit interlocking
   Tipo de montagem	35mm trilho DIN / parafuso	35mm trilho DIN / parafuso	WK width 85mm; TK width 70mm
   Classe de Proteção	IP20	IP20	Evita o contato dos dedos com peças energizadas
   Frequência operacional	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 milhão / 100,000 ciclos	10 milhão / 100,000 ciclos	Under rated conditions
   Mecânico / Elétrica

   Seleção & Recomendação de substituição

6.1 Three Core Selection Principles

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

Tensão da bobina: Match control voltage with code (M7=220V for China; P7=230V for Europe)

Frequência operacional: ≤240 cycles/h for dynamic compensation; choose higher specification or thyristor switch if over limit

6.2 Soluções Alternativas

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

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

Cost-sensitive projects: Domestic capacitor contactors (por exemplo. Chint NC1 series), cost-effective with full basic functions