Schneider LC1E630U7 AC Contactor

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 UN

U: Tension de bobine 240 V et

7: 50/60 Hz universal AC coil

N: 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

Article	Paramètre
Nombre de pôles	3P., 3AUCUN contact principal
Utilisation category	AC-3 (charges du moteur), AC-1 (charges résistives)
AC-3 Ie	630 UN (@ ≤440 V, 55 °C)
AC-1 Ith	1000 UN (@ 40 °C)
Tension assignée d'isolement Ui	690 V
Tension assignée de tenue aux chocs Uimp	8 kV
Coil rated voltage Uc	240 V et, 50/60 Hz
Plage de fonctionnement de la bobine	Ramasser: 0.85~1.1 × Uc; Abandonner: 0.25~0.5 × Uc
Inrush power consumption	1650 Virginie; Hold power consumption: 22 Virginie
Compatible motor power	220 V: 185 kW 380/400 V: 335 kW 440 V: 400 kW 690 V: 450 kW
Rated short-time withstand current Icw	5050 UN / 10 s
Fabrication / Pouvoir de coupure	Fabrication: 6300 UN; Rupture: 5040 Et @440V

🛠 Mechanical & Endurance Characteristics

Endurance mécanique: 4 millions de cycles

AC-3 electrical endurance: 600,000 cycles; AC-1: 200,000 cycles

Maximum operating rate: 1200 cycles/heure

Temps de fonctionnement: Closing 40~80 ms; Opening 100~200 ms

Montage: Plate mount (high-current frame does not support standard DIN rail)

Couple de serrage: Circuit principal 58 N·m; Circuit de commande 1.2 N·m

Dimension hors tout: W309 × H304 × D255 mm; Poids net: 18.6 kilos

Classe de protection: IP00

Température ambiante de fonctionnement: -5 ~ +55 °C; No derating up to altitude 3000 m

📌 Typical Applications

High-power fans, pompes à eau, compresseurs d'air, concasseurs, large motor starter cabinets, appareillage basse tension; AC-3 squirrel-cage motor start-stop control, switching of heavy resistive loads.

⚠️ Discontinuation & Options de remplacement

LC1E630U7N discontinued in April 2021, no new original production. Stock / second-hand units available on market.

Schneider OEM replacement: LC1G630KUEC (TeSys Giga series, 630 UN, 240 VAC compatible coil)
Alternative nationale: CJX2-F630, NC2-630, etc.. (Vérifier la tension de la bobine, temperature rise and short-time withstand current)

🧰 Optional Accessories

Bloc de contacts auxiliaires: LA1KN (add-on 1NO+1NC)

Coil surge suppressor, verrouillage mécanique, terminal shroud, relais de surcharge thermique (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, pas de grippage ni de bruit anormal
Inspect main contact surface for ablation or welding; check consistency of contact resistance across three phases
Dielectric strength test: 2.5 kV / 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: Téléviseurs EasyPact, abandonné; LC1G630KUEC: TeSys Giga, OEM replacement. KU = 100~250 V AC/DC wide-range coil (compatible with original 240 ACC).

Paramètre	LC1E630U7	LC1G630KUEC	Remarques
Série de produits	Téléviseurs EasyPact (Easy TeSys)	TeSys Giga	Schneider new generation high power contactor
Model definition	3P., AC-3 630 UN, bobine 240 V et, 50/60 Hz	3P., AC-3 630 UN, 100~250 V AC/DC wide coil	Giga AC/DC universal coil, direct replacement for U7 (240ACC) without control circuit modification
Statut du produit	Discontinued Apr 2021, action / second-hand	En production, genuine new
Poteaux / Contacts principaux	3P., 3NON	3P., 3NON
AC-3 rated Ie @≤440V	630 UN (55 °C)	630 UN	Identical rating for motor loads
AC-1 conventional thermal current Ith @40 °C	1000 UN	1050 UN	Giga higher resistive load capacity
Tension assignée d'isolement Ui	690 V	1000 V	Giga upgraded insulation
Tension assignée de tenue aux chocs Uimp	8 kV	8 kV	Identique
Rated short-time withstand current Icw	5050 UN /10 s	5050 UN /10 s; 4400 UN /30 s	Same 10s withstand; Giga superior long-duration withstand
Making capacity @440V	6300 UN	7220 UN	Giga higher short-circuit making capability
Breaking capacity @440V	5040 UN	5550 UN
Contacts auxiliaires intégrés	Aucun, LA1KN add-on required	1NO+1NC built-in	No need to purchase auxiliary contact block for retrofit
Type de bobine	AC only, 240 V, 50/60 Hz	Wide-range AC/DC 100~250 V	Compatible with AC and DC control supply, better engineering flexibility
Plage de fonctionnement de la bobine	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
Consommation électrique de la bobine	Appel 1650 Virginie; Hold 22 Virginie	Appel 800 Virginie; Hold 15 Virginie	Much lower coil power, less cabinet heat
Endurance mécanique	4 millions de cycles	5 millions de cycles	25% amélioration
AC-3 electrical endurance	600,000 cycles	1 millions de cycles	Significant improvement under motor duty
Maximum operating rate	1200 cycles/heure	AC-3: 600 cycles/heure	LC1E better for frequent cycling; LC1G sufficient for standard motor applications
Temps de fonctionnement	Close 40~80 ms; Open 100~200 ms	Close 40~70 ms; Open 15~50 ms	Giga faster opening
Température ambiante	-5 ~ +55 °C	-25 ~ +60 °C	Giga supports low-temperature startup
Classe de protection	IP00	IP2X with shroud	Finger-safe protection
Dimension(L×H×P)	309 × 304 × 255 mm	211 × 284 × 266 mm	~32% narrower, économise de l'espace dans l'armoire
Poids net	18.6 kilos	14.2 kilos	4.4 kg lighter for easier handling
Main circuit tightening torque	58 N·m	58 N·m	Busbar torque unchanged, busbars can be reused
Control circuit torque	1.2 N·m	Push-in spring terminal	Tool-free control circuit connection
Montage	Plate mount	Plate mount	Mounting hole pattern incompatible, base plate re-drilling required
Power dissipation per pole (AC-3)	48 W	26 W	Lower contact loss, less temperature rise
Motor power AC-3 @400V	335 kW	335 kW	Identical motor rating
Extra features	Basic contactor	Optional contact wear diagnosis, verrouillage mécanique, retour d'état	Predictive maintenance available for critical loads

✅ Replacement Summary

Main circuit rating fully equivalent: Convient pour 335 kW, 400 V motor. Keep busbar torque at 58 N·m; 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.
Limitation: Max operating rate reduced to 600 cycles/heure. Applications with frequent inching or high cycle count need evaluation.
Temperature rise & fiabilité: Giga higher insulation voltage, lower contact loss and wider ambient temperature range, ideal for critical continuous-duty loads.

⚠️ Engineering Replacement Risk Notes

Original 240 V AC control supply can connect directly to LC1G630KUEC coil.

Do not replace directly for heavy inching / marche arrière fréquente >600 cycles/heure; performance review mandatory.

Much narrower frame width; existing busbars and protective baffles need rework.

LC1G630KUEC (TeSys Giga) Industrie & Load Application Guide

LC1G630KUEC: AC-3 630 UN, 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 cycles/heure, not recommended for high-frequency inching.

🏭 1. Eau & Eaux usées (Waterworks, Sewage Plants, Pumping Stations)

Typical loads: Large raw water pumps, pompes de relevage des eaux usées, pompes de circulation, sludge pumps, ventilateurs d'aération, main drive motors for scrapers.

Caractéristiques: 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. Grand CVC, Centres de données & Commercial Complexes

Typical loads: Chiller compressors, large cooling tower fans, primary / secondary chilled water pumps, building exhaust fans.

Caractéristiques: 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. Métallurgie, Exploitation minière & Matériaux de construction

Typical loads: Concasseurs, broyeurs à boulets, heavy belt conveyors, kiln blowers, hoist motors (derating required for AC-4 duty).

Caractéristiques: Heavy shock loads and dusty harsh environment; strong short-time withstand and short-circuit capacity. AC-4 hoist duty limited to max 150 cycles/heure, derating mandatory during selection.

🛢️ 4. Pétrochimique & Énergie (Huile & Gas, Solaire, Énergie éolienne)

Typical loads: Process pumps, compresseurs, thermal oil furnace blowers, wind turbine yaw / pitch large motors, high-power resistive load switching for PV systems.

Caractéristiques: 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. Papier, Pulpe, Nourriture & Pharmaceutique

Typical loads: Paper machine main fans, pompes à vide, large agitator motors, drying resistive heating loads (AC-1).

Caractéristiques: Continuous production with zero unscheduled downtime tolerance. Contact wear diagnosis enables advance replacement planning.

🏗️ 6. Infrastructure & Railway Auxiliary Systems

Typical loads: Tunnel exhaust fans, station large water pumps, refroidisseurs, port crane auxiliary drives, terminal conveying equipment.

Caractéristiques: 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 (Centre multicompte), large motor starter cabinets, star-delta starter panels, soft starter bypass contactors (Bypass duty breaking capacity assessment required).

✅ Load Category Compatibility Summary

AC-3 (Primary use): Normal start-stop squirrel cage motors (pompes, les fans) ✅ Preferred

AC-1: Chauffage résistif, resistive load switching, Ith=1050 A ✅

AC-4: Motor plugging / freinage en marche arrière, avancer lentement (hoists etc.), derating required and strict operating frequency limits ⚠️

AC-6a: Commutation de banque de condensateurs, capacitor dedicated protection required; direct use not recommended

⚠️ Key Selection Limitations

Max AC-3 operating rate: 600 cycles/heure. Applications with higher frequency (avancer lentement, marche arrière fréquente) are not recommended; LC1E630U7 is preferred.
Operating ambient: -25 °C ~ +60 °C, 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.