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. 定格容量: 63kvar@400V/50Hz, コイル電圧: 230Vと.

1. Model Breakdown Explanation

2. Core Specification Parameter Table

3. Optional Accessories List

4. 競合他社 & ブランド間の同等の比較

5. 選定ガイドライン & 代替ソリューション

5.1 Three Key Selection Factors

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

コイル電圧: Ensure control circuit voltage matches P7 (230V); optional M7(220V)/U7(240V), 等.

動作周波数: ≤240 cycles/hour for dynamic compensation; select higher specification or dedicated solution if exceeded

5.2 Recommended Alternative Solutions

5.3 インストール & メンテナンスのヒント

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, 商業ビル, 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. 製品概要

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: 3P(3いいえ) 主な連絡先, 1NO+2NC補助接点, AC coil only (no DC coil version).

2. モデルの命名規則

3. 完全なモデルリスト

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

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

4. Coil Voltage Code Comparison Table

5. Core Technical Parameter Comparison
   

   パラメータ	LC1DWK12 Series	LC1DTK12 Series	備考
   定格容量	63kvar@400V/50Hz	40kvar@400V/50Hz	Rated at ambient temperature ≤60°C
   定格電流	90A@400V	58A@400V	I=Q/で計算(3​×U)
   極数	3P(3いいえ)	3P(3いいえ)	Normally open main contacts, three-phase dedicated
   補助接点	1NO+2NC	1NO+2NC	Instant action for control circuit interlocking
   取付タイプ	35mm DINレール / スクリュー	35mm DINレール / スクリュー	WK width 85mm; TK width 70mm
   保護クラス	IP20	IP20	Prevents finger contact with live parts
   動作周波数	マックス. 240 サイクル/時間	マックス. 240 サイクル/時間	Meets dynamic compensation demand
   周囲温度	-5°C~+60°C	-5°C~+60°C	Derating required beyond range
   耐用年数	10 百万 / 100,000 サイクル	10 百万 / 100,000 サイクル	Under rated conditions
   機械式 / 電気

   選択 & 交換の推奨事項

6.1 Three Core Selection Principles

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

コイル電圧: Match control voltage with code (M7=220V for China; P7=230V for Europe)

動作周波数: ≤240 cycles/h for dynamic compensation; choose higher specification or thyristor switch if over limit

6.2 代替ソリューション

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

Ultra-high frequency switching (>240 サイクル/時間): Thyristor switch (例えば. ATS48 series), 機械的摩耗がない

コスト重視のプロジェクト: Domestic capacitor contactors (例えば. Chint NC1 series), cost-effective with full basic functions