CHNT CJX2-4011 AC 접촉기

CJX2-4011 is a 3-극 AC 접촉기 from CHNT’s classic CJX2 series, with a 40A rated current and equipped with 1 아니요 + 1 NC 보조 접점.

It is suitable for AC-3 duty (예를 들어, 삼상 모터) and widely used in industrial motor control, power distribution switching, 및 자동화 시스템. It is a cost-effective choice from a leading domestic brand.

1. 모델 & 부품 번호 설명

2. 핵심 기술 사양

3. 특징 & 장점
4. High-reliability contact system

Silver alloy contacts offer good conductivity, anti-welding, and arc resistance

32-sheet silicon steel core for stable, low-noise operation (≤55dB)

Red copper coil + flame-retardant housing for high temperature resistance

2. Dual mounting flexibility

Standard 35mm DIN rail for quick installation

Also supports screw mounting for panel installation

3. 에너지 절약

Low power consumption for long-term operation

Stable coil pull-in, reduced control circuit energy use

4. Strong compatibility

Directly matches CHNT NR2 series thermal overload relays

Dimensions compatible with Schneider LC1-D40 series for direct replacement

4. 설치 & 배선 가이드

4.1 설치 요구 사항

DIN 레일: Clip onto 35mm standard rail and ensure full locking

나사 장착: Use M4 screws on a flat surface with ≥10mm clearance for heat dissipation

Prefer vertical installation; avoid horizontal mounting

4.2 배선사양

4.3 Key Wiring Notes

Do NOT mix main pole and coil terminals

Securely crimp wires to avoid overheating

When used with a thermal relay, connect it after T1/T2/T3

5. 일반적인 응용 분야

Three-phase motor control: 7.5kW~18.5kW pumps, 팬, 컨베이어

산업용 배전: cabinet switching, capacitor bank control

자동화된 생산 라인: PLC-controlled start/stop and interlock

Building systems: 공조, 엘리베이터, fire pumps

공작기계: 선반, 밀링 머신, 드릴링 머신

6. 교체 모델 & 호환성

6.1 CHNT Upgraded Replacements

6.2 브랜드 간 등가물

7. 구매 & 사용 팁
8. 확실성

Buy via official channels to avoid counterfeits

Verify model, 코일 전압, and poles

2. 부속품

Must use with NR2 thermal relay for motor overload protection

서지 억제기 (SR2 series) recommended for frequent switching

3. 선택 규칙

AC-3 for motors; AC-1 for resistive loads

Coil voltage must match control power

Higher protection grade for dusty/humid environments

4. 유지

Check terminal tightness every 6–12 months

Clean contacts and replace if worn

Energize briefly before long-term storage

> 메모: CJX2-4011 is a general-purpose contactor with high cost-performance, 안정적인 공급, and easy replacement. Widely used in machinery, 화학적인, building materials, 경공업.

Complete CHNT AC Contactor Series-Models & 주문 코드

Core Overview

CHNT AC contactors cover 5 main series:

CJX2 (classic), NXC (Kunlun upgrade), NC1 (industrial IEC), NC2 (고전류), NC8 (high voltage heavy duty).

Models are coded by current + 보조 접점 + 코일 전압.

Order codes start with 710010xxxx and cover 6A ~ 1250A.

1. CJX2 시리즈 (권위 있는, being phased out)

애플리케이션: Small-medium motors, 35mm DIN 레일, compatible with Schneider LC1-D.

> 메모: 01= 1NC, 10=1NO, 11=1NO+1NC. 코일 전압: AC24/36/110/220/380V. Last 3 digits = voltage code.

2. NXC 시리즈 (Kunlun Upgrade, 주류)

애플리케이션: CJX2 replacement, smaller, 낮은 전력, 장수.

> 메모: Z = DC coil (예를 들어, NXC-12Z DC24V); M = mechanical latching.

3. NC1 시리즈 (Industrial IEC Standard)

애플리케이션: International standard, 높은 신뢰성, frequent operation.

> 메모: NC1-N = reversing contactor. Z = DC coil.

4. NC2 시리즈 (High Current Industrial)

애플리케이션: Heavy motors & main circuits up to 800A.

> 메모: 3P/4P 사용 가능. 션트 트립, undervoltage release optional.

5. NC8 시리즈 (High Voltage Heavy Duty)

애플리케이션: Up to 1140V, 2650A for metallurgy, 채광, 선박.

> 메모: M = mechanical latching. 4P for 3P+N systems. DC coil available.

6. General Selection & Order Code Rules

6.1 Model Coding

6.2 Order Code Format

기준: 710010xxxxxxx

예:

CJX2-4011 AC220V → 710010200403220

NXC-12 DC24V → 710010100000500Z

6.3 주요 선택 포인트

1. Load: AC-3 for motors; AC-1 for resistive loads
2. Coil voltage must match control power
3. 보조 접점: 10, 01, 11, 22
4. 폴란드: 3P for three-phase; 4P for 3P+N
5. 시리즈 비교 & 추천