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. القدرة المقدرة: 63kvar@400V/50Hz, الجهد اللولبي: 230الخامس و.

1. Model Breakdown Explanation

2. Core Specification Parameter Table

3. Optional Accessories List

4. Competitor & Cross-Brand Equivalent Comparison

5. إرشادات الاختيار & الحلول البديلة

5.1 Three Key Selection Factors

Capacitor Capacity Matching: ≤63kvar for 400V system; ≤104kvar for 690V system, تجنب الحمل الزائد

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

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

5.2 Recommended Alternative Solutions

5.3 تثبيت & نصائح الصيانة

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, المباني التجارية, 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. Product Overview

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: 3ص(3لا) الاتصالات الرئيسية, 1NO+2NC auxiliary contacts, AC coil only (no DC coil version).

2. قاعدة تسمية النموذج

3. قائمة النماذج الكاملة

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
   

   المعلمة	LC1DWK12 Series	LC1DTK12 Series	ملاحظات
   القدرة المقدرة	63kvar@400V/50Hz	40kvar@400V/50Hz	Rated at ambient temperature ≤60°C
   التصنيف الحالي	90A@400V	58A@400V	تحسب بواسطة I=Q/(3​×U)
   عدد البولنديين	3ص(3لا)	3ص(3لا)	Normally open main contacts, three-phase dedicated
   جهات الاتصال المساعدة	1لا + 2NC	1لا + 2NC	Instant action for control circuit interlocking
   نوع التركيب	35مم DIN السكك الحديدية / screw	35مم DIN السكك الحديدية / screw	WK width 85mm; TK width 70mm
   فئة الحماية	IP20	IP20	يمنع ملامسة الإصبع للأجزاء الحية
   تردد التشغيل	الأعلى. 240 cycles/h	الأعلى. 240 cycles/h	Meets dynamic compensation demand
   درجة الحرارة المحيطة	-5°C~+60°C	-5°C~+60°C	Derating required beyond range
   خدمة الحياة	10 مليون / 100,000 دورات	10 مليون / 100,000 دورات	في ظل ظروف تصنيفها
   ميكانيكية / كهربائي

   اختيار & توصية الاستبدال

6.1 Three Core Selection Principles

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

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

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

6.2 الحلول البديلة

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

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

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