Schneider LC1DWK12P7 Kondensatorschütz

It is a dedicated capacitor contactor of Schneider TeSys D series, Entwickelt für das einschaltstromfreie Schalten von dreiphasigen Kondensatorbänken in Niederspannungs-Blindleistungskompensationsanlagen. Nennkapazität: 63links@400V/50Hz, Spulenspannung: 230V und.

1. Model Breakdown Explanation

2. Core Specification Parameter Table

3. Optional Accessories List

4. Wettbewerber & Cross-Brand Equivalent Comparison

5. Auswahlrichtlinien & Alternative Lösungen

5.1 Three Key Selection Factors

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

Spulenspannung: Ensure control circuit voltage matches P7 (230V); optional M7(220V)/U7(240V), usw.

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

5.2 Recommended Alternative Solutions

5.3 Installation & Wartungstipps

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 (einmal im Jahr); 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, Gewerbebauten, 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-Serie)

1. Produktübersicht

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: 63links@400V/50Hz

LC1DTK: 40links@400V/50Hz

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

2. Modellbenennungsregel

3. Vollständige Modellliste

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

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

4. Coil Voltage Code Comparison Table

5. Core Technical Parameter Comparison
   

   Parameter	LC1DWK12 Series	LC1DTK12 Series	Bemerkungen
   Nennkapazität	63links@400V/50Hz	40links@400V/50Hz	Rated at ambient temperature ≤60°C
   Nennstrom	90A@400V	58A@400V	Calculated by I=Q/(3​×U)
   Anzahl der Pole	3P(3NEIN)	3P(3NEIN)	Normally open main contacts, three-phase dedicated
   Hilfskontakte	1NO+2NC	1NO+2NC	Instant action for control circuit interlocking
   Montageart	35mm DIN-Schiene / screw	35mm DIN-Schiene / screw	WK width 85mm; TK width 70mm
   Schutzklasse	IP20	IP20	Prevents finger contact with live parts
   Betriebsfrequenz	Max. 240 cycles/h	Max. 240 cycles/h	Meets dynamic compensation demand
   Umgebungstemperatur	-5°C~+60°C	-5°C~+60°C	Derating required beyond range
   Lebensdauer	10 Million / 100,000 Zyklen	10 Million / 100,000 Zyklen	Under rated conditions
   Mechanisch / Elektrisch

   Auswahl & Ersatzempfehlung

6.1 Three Core Selection Principles

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

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

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

6.2 Alternative Lösungen

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

Ultra-high frequency switching (>240 cycles/h): Thyristor switch (z.B. ATS48 series), no mechanical wear

Kostensensible Projekte: Domestic capacitor contactors (z.B. Chint NC1 series), cost-effective with full basic functions