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 UM

Você: Tensão da bobina 240 V e

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

Item	Parâmetro
Número de pólos	3P, 3SEM contatos principais
Utilisation category	AC-3 (cargas do motor), AC-1 (cargas resistivas)
AC-3 Ie	630 UM (@ ≤440 V, 55 °C)
AC-1 Ith	1000 UM (@ 40 °C)
Tensão nominal de isolamento Ui	690 V
Tensão nominal suportável de impulso Uimp	8 kV
Coil rated voltage Uc	240 V e, 50/60 Hz
Faixa de operação da bobina	Escolher: 0.85~1.1 × Uc; Cair fora: 0.25~0.5 × Uc
Inrush power consumption	1650 VA; Hold power consumption: 22 VA
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 UM / 10 é
Fazendo / Capacidade de ruptura	Fazendo: 6300 UM; Quebra: 5040 E @440V

🛠 Mechanical & Endurance Characteristics

Resistência mecânica: 4 milhões de ciclos

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

Maximum operating rate: 1200 ciclos/hora

Tempo de operação: Closing 40~80 ms; Opening 100~200 ms

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

Torque de aperto: Circuito principal 58 N·m; Circuito de controle 1.2 N·m

Dimensão geral: W309 × H304 × D255 mm; Peso líquido: 18.6 kg

Classe de proteção: IP00

Temperatura ambiente de operação: -5 ~ +55 °C; No derating up to altitude 3000 eu

📌 Typical Applications

Ventiladores de alta potência, bombas de água, compressores de ar, trituradores, large motor starter cabinets, low-voltage switchgear; AC-3 squirrel-cage motor start-stop control, switching of heavy resistive loads.

⚠️ Discontinuation & Opções de substituição

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

Schneider OEM replacement: LC1G630KUEC (Série TeSys Giga, 630 UM, 240 VAC compatible coil)
Alternativa doméstica: CJX2-F630, NC2-630, etc.. (Verifique a tensão da bobina, temperature rise and short-time withstand current)

🧰 Optional Accessories

Bloco de contato auxiliar: LA1KN (add-on 1NO+1NC)

Coil surge suppressor, intertravamento mecânico, terminal shroud, relé de sobrecarga térmica (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 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: TVS EasyPact, descontinuado; LC1G630KUEC: TeSys Giga, OEM replacement. KU = 100~250 V AC/DC wide-range coil (compatible with original 240 VAC).

Parâmetro	LC1E630U7	LC1G630KUEC	Observações
Série de produtos	TVS EasyPact (Easy TeSys)	TeSys Giga	Schneider new generation high power contactor
Model definition	3P, AC-3 630 UM, bobina 240 V e, 50/60 Hz	3P, AC-3 630 UM, 100~250 V AC/DC wide coil	Giga AC/DC universal coil, direct replacement for U7 (240VAC) without control circuit modification
Estado do produto	Discontinued Apr 2021, estoque / second-hand	Em produção, genuine new
Poloneses / Principais contatos	3P, 3NÃO	3P, 3NÃO
AC-3 rated Ie @≤440V	630 UM (55 °C)	630 UM	Identical rating for motor loads
AC-1 conventional thermal current Ith @40 °C	1000 UM	1050 UM	Giga higher resistive load capacity
Tensão nominal de isolamento Ui	690 V	1000 V	Giga upgraded insulation
Tensão nominal suportável de impulso Uimp	8 kV	8 kV	Idêntico
Rated short-time withstand current Icw	5050 UM /10 é	5050 UM /10 é; 4400 UM /30 é	Same 10s withstand; Giga superior long-duration withstand
Making capacity @440V	6300 UM	7220 UM	Giga higher short-circuit making capability
Breaking capacity @440V	5040 UM	5550 UM
Contatos auxiliares integrados	Nenhum, LA1KN add-on required	1NO+1NC built-in	No need to purchase auxiliary contact block for retrofit
Tipo de bobina	AC only, 240 V, 50/60 Hz	Wide-range AC/DC 100~250 V	Compatible with AC and DC control supply, better engineering flexibility
Faixa de operação da bobina	Puxar para dentro:0.85~1.1Uc Drop-out:0.25~0.5Uc	Puxar para dentro:0.8~1.1Ucmin~Ucmax Drop-out: ≤0.45Uc	Wider voltage tolerance for grid fluctuation
Consumo de energia da bobina	Inrush 1650 VA; Hold 22 VA	Inrush 800 VA; Hold 15 VA	Much lower coil power, less cabinet heat
Resistência mecânica	4 milhões de ciclos	5 milhões de ciclos	25% melhoria
AC-3 electrical endurance	600,000 ciclos	1 milhões de ciclos	Significant improvement under motor duty
Maximum operating rate	1200 ciclos/hora	AC-3: 600 ciclos/hora	LC1E better for frequent cycling; LC1G sufficient for standard motor applications
Tempo de operação	Close 40~80 ms; Open 100~200 ms	Close 40~70 ms; Open 15~50 ms	Giga faster opening
Temperatura ambiente	-5 ~ +55 °C	-25 ~ +60 °C	Giga supports low-temperature startup
Classe de proteção	IP00	IP2X with shroud	Finger-safe protection
Dimensão(L×A×P)	309 × 304 × 255 milímetros	211 × 284 × 266 milímetros	~32% narrower, economiza espaço no armário
Peso líquido	18.6 kg	14.2 kg	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	Terminal de mola push-in	Tool-free control circuit connection
Montagem	Plate mount	Plate mount	Mounting hole pattern incompatible, base plate re-drilling required
Power dissipation per pole (AC-3)	48 C	26 C	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, intertravamento mecânico, comentários sobre status	Predictive maintenance available for critical loads

✅ Replacement Summary

Main circuit rating fully equivalent: Adequado para 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.
Limitação: Max operating rate reduced to 600 ciclos/hora. Applications with frequent inching or high cycle count need evaluation.
Temperature rise & confiabilidade: 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 / reversão frequente >600 ciclos/hora; performance review mandatory.

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

LC1G630KUEC (TeSys Giga) Indústria & Load Application Guide

LC1G630KUEC: AC-3 630 UM, 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 ciclos/hora, not recommended for high-frequency inching.

🏭 1. Água & Águas Residuais (Waterworks, Sewage Plants, Estações de bombeamento)

Typical loads: Large raw water pumps, bombas de elevação de esgoto, bombas de circulação, sludge pumps, sopradores de aeração, main drive motors for scrapers.

Características: 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. Grande HVAC, Centros de dados & Complexos Comerciais

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

Características: 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. Metalurgia, Mineração & Materiais de Construção

Typical loads: Trituradores, moinhos de bolas, heavy belt conveyors, kiln blowers, hoist motors (derating required for AC-4 duty).

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

🛢️ 4. Petroquímica & Energia (Óleo & Gás, Solar, Energia Eólica)

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

Características: 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. Papel, Polpa, Comida & Farmacêutico

Typical loads: Paper machine main fans, bombas de vácuo, large agitator motors, drying resistive heating loads (AC-1).

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

🏗️ 6. Infraestrutura & Railway Auxiliary Systems

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

Características: 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 (MCC), 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 (bombas, fãs) ✅ Preferred

AC-1: Aquecimento resistivo, resistive load switching, Ith=1050 A ✅

AC-4: Motor plugging / reverse braking, avançando (hoists etc.), derating required and strict operating frequency limits ⚠️

AC-6a: Comutação de banco de capacitores, capacitor dedicated protection required; direct use not recommended

⚠️ Key Selection Limitations

Max AC-3 operating rate: 600 ciclos/hora. Applications with higher frequency (avançando, reversão frequente) are not recommended; LC1E630U7 is preferred.
Ambiente operacional: -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.