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.

✅ Definición del código del modelo

LC1E: EasyPact TVS AC contactor series

630: AC-3 rated operational current of 630 A

Ud.: voltaje de la bobina 240 V y

7: 50/60 Hz universal AC coil

norte: 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.

📋 Especificaciones eléctricas básicas

Artículo	Parámetro
Número de polos	3PAG, 3SIN contactos principales
Utilisation category	AC-3 (motor loads), AC-1 (cargas resistivas)
AC-3 Ie	630 A (@ ≤440 V, 55 °C)
AC-1 Ith	1000 A (@ 40 °C)
Tensión nominal de aislamiento Ui	690 V
Tensión nominal soportada al impulso Uimp	8 kV
Coil rated voltage Uc	240 V y, 50/60 Hz
Coil operating range	Levantar: 0.85~1.1 × Uc; Abandonar: 0.25~0.5 × Uc
Inrush power consumption	1650 Virginia; Hold power consumption: 22 Virginia
Potencia de motor compatible	220 V: 185 kilovatios 380/400 V: 335 kilovatios 440 V: 400 kilovatios 690 V: 450 kilovatios
Rated short-time withstand current Icw	5050 A / 10 s
Making / Capacidad de ruptura	Making: 6300 A; Rotura: 5040 A @440 V

🛠 Mechanical & Endurance Characteristics

Resistencia mecánica: 4 millones de ciclos

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

Maximum operating rate: 1200 ciclos/hora

tiempo de funcionamiento: Closing 40~80 ms; Opening 100~200 ms

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

Par de apriete: Circuito principal 58 Nuevo Méjico; circuito de control 1.2 Nuevo Méjico

Dimensión general: W309 × H304 × D255 mm; Peso neto: 18.6 kilos

Clase de protección: IP00

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

📌 Typical Applications

ventiladores de alta potencia, bombas de agua, compresores de aire, trituradoras, large motor starter cabinets, low-voltage switchgear; AC-3 squirrel-cage motor start-stop control, switching of heavy resistive loads.

⚠️ Discontinuation & Opciones de reemplazo

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

Schneider OEM replacement: LC1G630KUEC (TeSys Giga series, 630 A, 240 VAC compatible coil)
Alternativa doméstica: CJX2-F630, NC2-630, etc.. (Verificar el voltaje de la bobina, temperature rise and short-time withstand current)

🧰 Optional Accessories

Auxiliary contact block: LA1KN (add-on 1NO+1NC)

Coil surge suppressor, enclavamiento mecánico, 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, sin pegajosidad ni ruidos anormales
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: EasyPact TVS, interrumpido; LC1G630KUEC: TeSys Giga, OEM replacement. KU = 100~250 V AC/DC wide-range coil (compatible with original 240 VACACIONES).

Parámetro	LC1E630U7	LC1G630KUEC	Observaciones
Serie de productos	EasyPact TVS (Easy TeSys)	TeSys Giga	Schneider new generation high power contactor
Model definition	3PAG, AC-3 630 A, bobina 240 V y, 50/60 Hz	3PAG, AC-3 630 A, 100~250 V AC/DC wide coil	Giga AC/DC universal coil, direct replacement for U7 (240VACACIONES) without control circuit modification
Product status	Discontinued Apr 2021, existencias / second-hand	In production, genuine new
polacos / Contactos principales	3PAG, 3NO	3PAG, 3NO
AC-3 rated Ie @≤440V	630 A (55 °C)	630 A	Identical rating for motor loads
AC-1 conventional thermal current Ith @40 °C	1000 A	1050 A	Giga higher resistive load capacity
Tensión nominal de aislamiento Ui	690 V	1000 V	Giga upgraded insulation
Tensión nominal soportada al impulso Uimp	8 kV	8 kV	Idéntico
Rated short-time withstand current Icw	5050 A /10 s	5050 A /10 s; 4400 A /30 s	Same 10s withstand; Giga superior long-duration withstand
Making capacity @440V	6300 A	7220 A	Giga higher short-circuit making capability
Breaking capacity @440V	5040 A	5550 A
Contactos auxiliares incorporados	Ninguno, 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
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
Consumo de energía de la bobina	Irrupción 1650 Virginia; Hold 22 Virginia	Irrupción 800 Virginia; Hold 15 Virginia	Much lower coil power, less cabinet heat
Resistencia mecánica	4 millones de ciclos	5 millones de ciclos	25% mejora
AC-3 electrical endurance	600,000 ciclos	1 millones 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
tiempo de funcionamiento	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
Clase de protección	IP00	IP2X with shroud	Finger-safe protection
Dimensión(Ancho×Alto×Profundidad)	309 × 304 × 255 milímetros	211 × 284 × 266 milímetros	~32% narrower, ahorra espacio en el gabinete
Peso neto	18.6 kilos	14.2 kilos	4.4 kg lighter for easier handling
Main circuit tightening torque	58 Nuevo Méjico	58 Nuevo Méjico	Busbar torque unchanged, busbars can be reused
Control circuit torque	1.2 Nuevo Méjico	Push-in spring terminal	Tool-free control circuit connection
Montaje	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 kilovatios	335 kilovatios	Identical motor rating
Extra features	Basic contactor	Optional contact wear diagnosis, enclavamiento mecánico, comentarios de estado	Predictive maintenance available for critical loads

✅ Replacement Summary

Main circuit rating fully equivalent: Adecuado para 335 kilovatios, 400 V motor. Keep busbar torque at 58 Nuevo Méjico; 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.
Limitación: Max operating rate reduced to 600 ciclos/hora. Applications with frequent inching or high cycle count need evaluation.
Temperature rise & fiabilidad: 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 / marcha atrás frecuente >600 ciclos/hora; performance review mandatory.

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

LC1G630KUEC (TeSys Giga) Industria & Load Application Guide

LC1G630KUEC: AC-3 630 A, 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. Agua & Aguas residuales (Waterworks, Sewage Plants, Pumping Stations)

Typical loads: Large raw water pumps, bombas elevadoras de aguas residuales, circulating pumps, sludge pumps, sopladores de aireación, 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. Large HVAC, Centros de datos & Commercial Complexes

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, Minería & Materiales de construcción

Typical loads: Trituradoras, molinos 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. Petroquímico & Energía (Aceite & Gas, Solar, Energía eólica)

Typical loads: Process pumps, compresores, 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, Pulpa, Alimento & Farmacéutico

Typical loads: Paper machine main fans, bombas de vacío, 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. Infraestructura & Railway Auxiliary Systems

Typical loads: Tunnel exhaust fans, station large water pumps, enfriadores, 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 (zapatillas, fans) ✅ Preferred

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

AC-4: Motor plugging / reverse braking, avanzando poco a poco (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 ciclos/hora. Applications with higher frequency (avanzando poco a poco, marcha atrás frecuente) 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.