المقاولين,قاطع الدائرة,الاستشعار,التشفير,بلك,محول
The domestic full model designation is commonly LC1E630U7N. Discontinued in April 2021. It is a 3-pole high-power AC contactor.
✅ Model Code Definition
LC1E: EasyPact TVS AC contactor series
630: AC-3 rated operational current of 630 أ
ش: الجهد لفائف 240 الخامس و
7: 50/60 Hz universal AC coil
ن: Domestic version with CCC certification (Overseas model LC1E630U7 does not carry suffix N)
This unit has no built-in auxiliary contacts. Auxiliary contacts require add-on accessories.
📋 Core Electrical Specifications
| غرض | المعلمة |
| عدد الأعمدة | 3ص, 3لا توجد جهات اتصال رئيسية |
| Utilisation category | ايه سي-3 (الأحمال الحركية), ايه سي-1 (الأحمال المقاومة) |
| AC-3 Ie | 630 أ (@ ≤440 V, 55 درجة مئوية) |
| AC-1 Ith | 1000 أ (@ 40 درجة مئوية) |
| تصنيف الجهد العزل واجهة المستخدم | 690 V |
| Rated impulse withstand voltage Uimp | 8 كيلو فولت |
| Coil rated voltage Uc | 240 الخامس و, 50/60 هرتز |
| Coil operating range | يلتقط: 0.85~1.1 × Uc; Drop-out: 0.25~0.5 × Uc |
| Inrush power consumption | 1650 فرجينيا; Hold power consumption: 22 فرجينيا |
| Compatible motor power | 220 V: 185 كيلوواط 380/400 V: 335 كيلوواط 440 V: 400 كيلوواط 690 V: 450 كيلوواط |
| Rated short-time withstand current Icw | 5050 أ / 10 ق |
| Making / كسر القدرة | Making: 6300 أ; كسر: 5040 A @440 V |
🛠 Mechanical & Endurance Characteristics
التحمل الميكانيكي: 4 مليون دورة
AC-3 electrical endurance: 600,000 دورات; ايه سي-1: 200,000 دورات
Maximum operating rate: 1200 دورات / ساعة
وقت التشغيل: Closing 40~80 ms; Opening 100~200 ms
تصاعد: Plate mount (high-current frame does not support standard DIN rail)
تشديد عزم الدوران: الدائرة الرئيسية 58 ن · م; دائرة التحكم 1.2 ن · م
Overall dimension: W309 × H304 × D255 mm; الوزن الصافي: 18.6 كجم
فئة الحماية: IP00
درجة حرارة التشغيل المحيطة: -5 ~ +55 درجة مئوية; No derating up to altitude 3000 م
📌 Typical Applications
High-power fans, مضخات المياه, ضواغط الهواء, الكسارات, large motor starter cabinets, low-voltage switchgear; AC-3 squirrel-cage motor start-stop control, switching of heavy resistive loads.
⚠️ Discontinuation & خيارات الاستبدال
LC1E630U7N discontinued in April 2021, no new original production. مخزون / second-hand units available on market.
- شنايدر OEM replacement: LC1G630KUEC (سلسلة تيسيس جيجا, 630 أ, 240 VAC compatible coil)
- البديل المحلي: CJX2-F630, NC2-630, إلخ. (Verify coil voltage, temperature rise and short-time withstand current)
🧰 Optional Accessories
Auxiliary contact block: LA1KN (add-on 1NO+1NC)
مانع زيادة التيار, mechanical interlock, terminal shroud, تتابع الحمل الزائد الحراري (large frame LRD series)
📎 Inspection Checklist for Second-hand Acceptance
- Measure coil resistance and compare with reference value for same model; power on to test pull-in / drop-out, no sticking or abnormal noise
- Inspect main contact surface for ablation or welding; check consistency of contact resistance across three phases
- Dielectric strength test: 2.5 كيلو فولت / 1 min between phases and main circuit to earth
- Verify terminal tightening torque; inspect busbar contact surface for oxidation and overheating discoloration
- Test operating voltage: Reliable pull-in at 0.85Uc, reliable drop-out below 0.5Uc
LC1G630KUEC VS LC1E630U7 Parameter Comparison Table
LC1E630U7: EasyPact TVS, توقف; LC1G630KUEC: تيسيس جيجا, OEM replacement. KU = 100~250 V AC/DC wide-range coil (compatible with original 240 بطالة).
| المعلمة | LC1E630U7 | LC1G630KUEC | ملاحظات |
| سلسلة المنتجات | EasyPact TVS (Easy TeSys) | تيسيس جيجا | Schneider new generation high power contactor |
| Model definition | 3ص, ايه سي-3 630 أ, لفائف 240 الخامس و, 50/60 هرتز | 3ص, ايه سي-3 630 أ, 100~250 V AC/DC wide coil | Giga AC/DC universal coil, direct replacement for U7 (240بطالة) without control circuit modification |
| حالة المنتج | Discontinued Apr 2021, مخزون / second-hand | In production, genuine new | |
| البولنديين / جهات الاتصال الرئيسية | 3ص, 3لا | 3ص, 3لا | |
| AC-3 rated Ie @≤440V | 630 أ (55 درجة مئوية) | 630 أ | Identical rating for motor loads |
| AC-1 conventional thermal current Ith @40 °C | 1000 أ | 1050 أ | Giga higher resistive load capacity |
| تصنيف الجهد العزل واجهة المستخدم | 690 V | 1000 V | Giga upgraded insulation |
| Rated impulse withstand voltage Uimp | 8 كيلو فولت | 8 كيلو فولت | تطابق |
| Rated short-time withstand current Icw | 5050 أ /10 ق | 5050 أ /10 ق; 4400 أ /30 ق | Same 10s withstand; Giga superior long-duration withstand |
| Making capacity @440V | 6300 أ | 7220 أ | Giga higher short-circuit making capability |
| Breaking capacity @440V | 5040 أ | 5550 أ | |
| اتصالات مساعدة مدمجة | لا أحد, LA1KN add-on required | 1NO+1NC built-in | No need to purchase auxiliary contact block for retrofit |
| نوع الملف | مكيف الهواء فقط, 240 V, 50/60 هرتز | Wide-range AC/DC 100~250 V | Compatible with AC and DC control supply, better engineering flexibility |
| Coil operating range | Pull-in:0.85~1.1Uc Drop-out:0.25~0.5Uc | Pull-in:0.8~1.1Ucmin~Ucmax Drop-out: ≤0.45Uc | Wider voltage tolerance for grid fluctuation |
| استهلاك الطاقة لفائف | تدفق 1650 فرجينيا; Hold 22 فرجينيا | تدفق 800 فرجينيا; Hold 15 فرجينيا | Much lower coil power, less cabinet heat |
| التحمل الميكانيكي | 4 مليون دورة | 5 مليون دورة | 25% تحسين |
| AC-3 electrical endurance | 600,000 دورات | 1 مليون دورة | Significant improvement under motor duty |
| Maximum operating rate | 1200 دورات / ساعة | ايه سي-3: 600 دورات / ساعة | LC1E better for frequent cycling; LC1G sufficient for standard motor applications |
| وقت التشغيل | Close 40~80 ms; Open 100~200 ms | Close 40~70 ms; Open 15~50 ms | Giga faster opening |
| درجة الحرارة المحيطة | -5 ~ +55 درجة مئوية | -25 ~ +60 درجة مئوية | Giga supports low-temperature startup |
| فئة الحماية | IP00 | IP2X with shroud | Finger-safe protection |
| البعد(العرض × الارتفاع × العمق) | 309 × 304 × 255 مم | 211 × 284 × 266 مم | ~32% narrower, يوفر مساحة الخزانة |
| الوزن الصافي | 18.6 كجم | 14.2 كجم | 4.4 kg lighter for easier handling |
| Main circuit tightening torque | 58 ن · م | 58 ن · م | Busbar torque unchanged, busbars can be reused |
| Control circuit torque | 1.2 ن · م | دفع في محطة الربيع | Tool-free control circuit connection |
| تصاعد | Plate mount | Plate mount | Mounting hole pattern incompatible, base plate re-drilling required |
| Power dissipation per pole (ايه سي-3) | 48 دبليو | 26 دبليو | Lower contact loss, less temperature rise |
| Motor power AC-3 @400V | 335 كيلوواط | 335 كيلوواط | Identical motor rating |
| Extra features | Basic contactor | Optional contact wear diagnosis, mechanical interlock, status feedback | Predictive maintenance available for critical loads |
✅ Replacement Summary
- Main circuit rating fully equivalent: Suitable for 335 كيلوواط, 400 V motor. Keep busbar torque at 58 ن · م; Mounting hole layout differs, base plate re-drilling required.
- Control circuit advantage: LC1G630KUEC wide-range 100~250 V AC/DC coil works directly with original 240 VAC control supply; lower coil power and built-in 1NO+1NC auxiliary contacts, no auxiliary accessory purchase.
- القيد: Max operating rate reduced to 600 دورات / ساعة. Applications with frequent inching or high cycle count need evaluation.
- Temperature rise & مصداقية: Giga higher insulation voltage, lower contact loss and wider ambient temperature range, ideal for critical continuous-duty loads.
⚠️ Engineering Replacement Risk Notes
إبداعي 240 V AC control supply can connect directly to LC1G630KUEC coil.
Do not replace directly for heavy inching / frequent reversing >600 دورات / ساعة; performance review mandatory.
Much narrower frame width; existing busbars and protective baffles need rework.
LC1G630KUEC (تيسيس جيجا) صناعة & Load Application Guide
LC1G630KUEC: ايه سي-3 630 أ, rated for 335 kW three-phase squirrel cage motor at 400 V. Built-in contact wear diagnosis, wide-range AC/DC coil and IP2X shroud. Designed for high-power motor start-stop, star-delta starters and heavy resistive load switching. Max operating rate 600 دورات / ساعة, not recommended for high-frequency inching.
🏭 1. Water & Wastewater (محطات المياه, Sewage Plants, Pumping Stations)
Typical loads: Large raw water pumps, مضخات رفع مياه الصرف الصحي, circulating pumps, sludge pumps, aeration blowers, main drive motors for scrapers.
سمات: 24/7 continuous operation requiring high reliability. LC1G supports -25 °C low temperature operation and contact wear diagnosis for predictive maintenance. Widely used in MCC pump cabinets and the most common retrofit candidate replacing LC1E630U7.
🌬️ 2. تكييف هواء كبير, مراكز البيانات & Commercial Complexes
Typical loads: Chiller compressors, large cooling tower fans, primary / secondary chilled water pumps, building exhaust fans.
سمات: Building MCC switchgear, frequent start-stop and elevated cabinet ambient temperature. Giga Ui=1000 V high insulation and low temperature rise; wide coil accommodates building supply voltage fluctuation.
⚙️ 3. علم المعادن, التعدين & Building Materials
Typical loads: الكسارات, ball mills, heavy belt conveyors, kiln blowers, hoist motors (derating required for AC-4 duty).
سمات: Heavy shock loads and dusty harsh environment; strong short-time withstand and short-circuit capacity. AC-4 hoist duty limited to max 150 دورات / ساعة, derating mandatory during selection.
🛢️ 4. البتروكيماويات & طاقة (زيت & الغاز, Solar, طاقة الرياح)
Typical loads: Process pumps, الضواغط, thermal oil furnace blowers, wind turbine yaw / pitch large motors, high-power resistive load switching for PV systems.
سمات: Mounted outside explosion-proof enclosures, prone to supply voltage fluctuation. Wide-range 100~250 V AC/DC coil with high control supply compatibility; Marine certification available for auxiliary motor circuits on offshore platforms.
📦 5. Paper, اللب, طعام & الصيدلانية
Typical loads: Paper machine main fans, مضخات فراغ, large agitator motors, drying resistive heating loads (ايه سي-1).
سمات: Continuous production with zero unscheduled downtime tolerance. Contact wear diagnosis enables advance replacement planning.
🏗️ 6. بنية تحتية & Railway Auxiliary Systems
Typical loads: Tunnel exhaust fans, station large water pumps, المبردات, port crane auxiliary drives, terminal conveying equipment.
سمات: Preferred choice for project-type MCC panel builders; compatible with star-delta starter schemes with LA9G mechanical interlock accessory.
🧱 7. OEM Panel Builders & System Integrators
Panel builders: Low voltage Motor Control Centre (مركز عملائي), large motor starter cabinets, star-delta starter panels, soft starter bypass contactors (Bypass duty breaking capacity assessment required).
✅ Load Category Compatibility Summary
ايه سي-3 (Primary use): Normal start-stop squirrel cage motors (مضخات, المشجعين) ✅ Preferred
ايه سي-1: Resistive heating, resistive load switching, Ith=1050 A ✅
AC-4: Motor plugging / reverse braking, inching (hoists etc.), derating required and strict operating frequency limits ⚠️
AC-6a: Capacitor bank switching, capacitor dedicated protection required; direct use not recommended
⚠️ Key Selection Limitations
- Max AC-3 operating rate: 600 دورات / ساعة. Applications with higher frequency (inching, frequent reversing) are not recommended; LC1E630U7 is preferred.
- بيئة التشغيل: -25 °C ~ +60 درجة مئوية, wider temperature range than legacy LC1E630U7.
- Mounting hole pattern incompatible with LC1E; cabinet base plate re-drilling required for retrofit.
- Marine type approval available for vessel applications.
