Контактор переменного тока CHNT CJX2-4011

CJX2-4011 is a 3-pole AC contactor from CHNT’s classic CJX2 series, with a 40A rated current and equipped with 1 НЕТ + 1 Вспомогательные контакты НЗ.

It is suitable for AC-3 duty (например, three-phase motors) and widely used in industrial motor control, power distribution switching, and automation systems. It is a cost-effective choice from a leading domestic brand.

1. Модель & Part Number Explanation

2. Core Technical Specifications

3. Функции & Преимущества
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. Энергосбережение

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. Установка & Wiring Guide

4.1 Требования к установке

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

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

Prefer vertical installation; avoid horizontal mounting

4.2 Спецификация проводки

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. Типичные применения

Three-phase motor control: 7.5kW~18.5kW pumps, фанаты, конвейеры

Промышленное распределение электроэнергии: cabinet switching, capacitor bank control

Автоматизированные производственные линии: PLC-controlled start/stop and interlock

Building systems: HVAC, лифты, fire pumps

Machine tools: lathes, milling machines, drilling machines

6. Сменные модели & Совместимость

6.1 CHNT Upgraded Replacements

6.2 Cross-Brand Equivalents

7. Покупка & Usage Tips
8. Authenticity

Buy via official channels to avoid counterfeits

Verify model, coil voltage, and poles

2. Аксессуары

Must use with NR2 thermal relay for motor overload protection

Ограничитель перенапряжений (SR2 series) recommended for frequent switching

3. Selection Rules

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

Coil voltage must match control power

Higher protection grade for dusty/humid environments

4. Обслуживание

Check terminal tightness every 6–12 months

Clean contacts and replace if worn

Energize briefly before long-term storage

> Примечание: CJX2-4011 is a general-purpose contactor with high cost-performance, stable supply, and easy replacement. Widely used in machinery, chemical, building materials, light industry.

Complete CHNT AC Contactor Series-Models & Order Codes

Core Overview

CHNT AC contactors cover 5 main series:

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

Models are coded by current + вспомогательные контакты + coil voltage.

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

1. CJX2 Series (Classic, being phased out)

Приложение: Small-medium motors, 35мм DIN-рейка, compatible with Schneider LC1-D.

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

2. Серия NXC (Kunlun Upgrade, Mainstream)

Приложение: CJX2 replacement, smaller, lower power, longer life.

> Примечание: Z = DC coil (например, NXC-12Z DC24V); M = mechanical latching.

3. NC1 Series (Industrial IEC Standard)

Приложение: International standard, высокая надежность, frequent operation.

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

4. Серия NC2 (High Current Industrial)

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

> Примечание: 3P/4P available. Шунтовая поездка, undervoltage release optional.

5. NC8 Series (High Voltage Heavy Duty)

Приложение: Up to 1140V, 2650A for metallurgy, mining, marine.

> Примечание: 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

Стандартный: 710010xxxxxxx

Пример:

CJX2-4011 AC220V → 710010200403220

NXC-12 DC24V → 710010100000500Z

6.3 Ключевые моменты выбора

1. Load: AC-3 for motors; AC-1 for resistive loads
2. Coil voltage must match control power
3. Auxiliary contacts: 10, 01, 11, 22
4. поляки: 3P for three-phase; 4P for 3P+N
5. Series Comparison & Рекомендация