CHINT CJ40-1000 AC contactor

CHINT CJ40-1000 is a heavy-duty contactor de CA with a rated current of 1000A, suitable for controlling high-power motors under AC-3 duty category. It features high reliability, strong breaking capacity, and optional energy-saving design, and is widely used in power systems, industrial control, and heavy machinery. Below is the complete technical data and application selection guide.

Parámetros principales & Key Specifications

Artículo	Valor	Observaciones
Rated operational current (Ith)	1000A	AC-1, 380V
Tensión nominal de aislamiento (interfaz de usuario)	1140V	Cumple con IEC/EN 60947-4-1
AC-3 control capacity	380V/625kW, 660V/475kW, 1140V/600kW	Squirrel-cage motors
Conventional thermal current	1000A	–
Coil control voltage	AC 110V/127V/220V/380V, DC 110V/220V	50Hz standard
Consumo de energía de la bobina	Starting approx. 360Virginia, Holding approx. 91.2Virginia	Standard type; J-type saves 90% energy
Durabilidad mecánica	3,000,000 operaciones	Unified for 630~1000A
Electrical durability	1,000,000 operaciones	AC-3 at rated conditions
Operating voltage range	Pull-in: 85%~110% Us, Drop-out: 10%~75% Us	Energy-saving type standard
Contactos auxiliares	4NO + 2CAROLINA DEL NORTE (estándar)	Rated current 16A, AC-15 380V 1.3A
Overall dimensions	244.5×347×287.5mm	Including arc chute
Ambient conditions	-5℃~+40℃, altitud ≤2000m, grado de contaminación 3	Installation class III

Características estructurales & Technical Advantages
Direct-acting double-breakpoint design

Main contacts made of silver alloy, excellent conductivity and arc erosion resistance

Double-breakpoint structure improves breaking capacity and reduces contact wear

High-efficiency arc extinguishing system

Arc-resistant plastic + iron grid arc chute, avoids fragility of traditional ceramic chutes

Strong breaking performance, suitable for heavy-duty frequent start/stop applications

Energy-saving version (J-type)

CJ40-1000J achieves up to 90% energy saving, greatly reduces coil power loss

AC/DC universal, compatible with various control power supplies

Reliable electromagnetic system

32-sheet iron core design reduces eddy current loss and improves suction stability

Undervoltage release protection prevents malfunction under low voltage

Campos de aplicación & Recommendations
Typical applications

High-power motor control: fans, zapatillas, compresores, crushers, etc..

Power systems: switching control of transformers and generators

Heavy machinery: main circuit control in metallurgy, mining, cement, paper, etc..

Can be combined with thermal relays or electronic protection devices to form a motor starter for overload protection

Selection & installation notes

Confirm load category (AC-3/AC-4) and power to match rated capacity

Select proper coil voltage (220V/380V commonly used) to avoid conflict between control and main circuits

Auxiliary contact quantity and type must match control circuit requirements

Mounting surface inclination ≤±5° for stable operation and good heat dissipation

Recommended to use with RT17-4/1250(1000) fuse for enhanced short-circuit protection

Cross-Brand Replacement Reference

Marca	Replacement Model	Key Matching	Notas
Schneider	LC1-D10000M7C	1000A, AC-3 630kW, 380V	Auxiliary contact count may vary; verify before use
siemens	3RT5076-6AP36	1000A, AC-3 630kW, 380V	Mounting dimensions differ; check hole positions
TEJIDO	A145-30-11	1000A, AC-3 630kW, 380V	Coil power may differ; check control capacity
Delicioso	CJ40-1000	Fully compatible, same series	Direct interchangeable without modification

Ordering & Maintenance Guidelines
Ordering specification

Full model example: CJ40-1000 220V 50Hz 4NO 2NC

Clearly indicate if energy-saving type (J-type), p.ej., CJ40-1000J 380V

Maintenance suggestions

Regularly inspect main contact wear; replace if burning depth exceeds 1mm

Clean arc chute to remove carbon deposits and ensure stable arc extinguishing

Check coil temperature rise to avoid insulation aging from overheating

Preventive replacement of key parts before mechanical life expires (aprox. 2.8 millones de operaciones)

Resumen

CHINT CJ40-1000 contactor features 1000A rated current, 1140V insulation voltage, and 625kW control capacity (380V), balancing reliability and energy efficiency for various heavy industrial applications.

Durante la selección, focus on load type, control voltage, and auxiliary contact configuration to ensure precise matching. For cross-brand replacement, prioritize verification of rated capacity, mounting dimensions, and auxiliary contact parameters to ensure stable operation.

Mounting Dimensions of CHINT CJ40-1000 Contactor

The mounting and overall dimensions of CHINT CJ40-1000 contactor are listed below, sourced from CHINT official manual. All units are millimeters (milímetros).

Core Dimension Data (Common for CJ40-630~1000)

Dimension Type	Symbol	Valor	Descripción
Overall dimensions	A (ancho)	244.5	Max width including arc chute
	B (altura)	347	Total height including arc chute
	do (profundidad)	287.5	Total depth including terminals
Mounting dimensions	a (vertical hole distance)	210±0.575	Center distance between vertical mounting holes
	b (horizontal hole distance)	180±0.5	Center distance between horizontal mounting holes
	(hole diameter)	11	For M10 fixing bolts
Safety clearance	F(380V)	50	Minimum surrounding clearance
	F(660V)	70	–
	F(1140V)	80	–

Installation Instructions
Mounting method: Bolt-fixed mounting only; not suitable for DIN rail (due to power rating)
Mounting surface requirements:

Inclination ≤±5° from vertical for stable operation

Surface must be flat and rigid; 4 M10 bolts recommended for diagonal fixing

Heat dissipation: Sufficient space required for ventilation; avoid close to other heat-generating devices
Wiring space: Large main terminals; allow ≥150mm operation space for cable connection and maintenance
Comparison with CJ40-630

CJ40-1000 and CJ40-630 have identical mounting dimensions and are interchangeable, differing only in main contact capacity and coil power consumption.