접촉기,회로 차단기,태양광 인버터,전기 계량기,태양 전지
CHINT CJ40-1000 is a heavy-duty AC 접촉기 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.
- 핵심 매개변수 & Key Specifications
| 목 | 값 | 비고 |
|---|---|---|
| Rated operational current (Ith) | 1000에이 | AC-1, 380다섯 |
| Rated insulation voltage (우이) | 1140다섯 | Complies with IEC/EN 60947-4-1 |
| AC-3 control capacity | 380V/625kW, 660V/475kW, 1140V/600kW | Squirrel-cage motors |
| Conventional thermal current | 1000에이 | – |
| Coil control voltage | AC 110V/127V/220V/380V, DC 110V/220V | 50Hz standard |
| Coil power consumption | Starting approx. 360버지니아, Holding approx. 91.2버지니아 | Standard type; J-type saves 90% energy |
| Mechanical durability | 3,000,000 운영 | Unified for 630~1000A |
| Electrical durability | 1,000,000 운영 | AC-3 at rated conditions |
| Operating voltage range | Pull-in: 85%~110% Us, Drop-out: 10%~75% Us | Energy-saving type standard |
| 보조 접점 | 4아니요 + 2NC (standard) | Rated current 16A, AC-15 380V 1.3A |
| Overall dimensions | 244.5×347×287.5mm | Including arc chute |
| Ambient conditions | -5℃~+40℃, 고도 2000m 이하, pollution degree 3 | Installation class III |
- 구조적 특징 & 기술적 장점
- 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
- Application Fields & Recommendations
- Typical applications
High-power motor control: 팬, pumps, 압축기, crushers, 등.
Power systems: switching control of transformers and generators
Heavy machinery: main circuit control in metallurgy, mining, cement, paper, 등.
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
| Brand | Replacement Model | Key Matching | Notes |
| 슈나이더 | LC1-D10000M7C | 1000에이, AC-3 630kW, 380다섯 | Auxiliary contact count may vary; verify before use |
| 지멘스 | 3RT5076-6AP36 | 1000에이, AC-3 630kW, 380다섯 | Mounting dimensions differ; check hole positions |
| 씨줄 | A145-30-11 | 1000에이, AC-3 630kW, 380다섯 | Coil power may differ; check control capacity |
| 맛있는 | 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), 예를 들어, 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 (대략. 2.8 백만 개의 작업)
- 요약
CHINT CJ40-1000 contactor features 1000A rated current, 1140V insulation voltage, and 625kW control capacity (380다섯), balancing reliability and energy efficiency for various heavy industrial applications.
During selection, 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 (mm).
- Core Dimension Data (Common for CJ40-630~1000)
| Dimension Type | Symbol | 값 | 설명 |
| Overall dimensions | 에이 (너비) | 244.5 | Max width including arc chute |
| B (height) | 347 | Total height including arc chute | |
| 기음 (depth) | 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 | 에프(380다섯) | 50 | Minimum surrounding clearance |
| 에프(660다섯) | 70 | – | |
| 에프(1140다섯) | 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.
