Контактор,автоматический выключатель,солнечный инвертор,электрический счетчик,солнечные батареи
CJX2-3210 is a 3-pole 32A Контактор переменного тока from CHINT CJX2 series, с 3 NO main poles + 1 NO auxiliary contact.
It is suitable for controlling 15kW motors at AC-3 380V. Coil voltages include 220V/380V and others.
Direct replacement models include Schneider LC1N3210, Siemens 3RT6035-1AN20, и т. д..
- Модель Объяснение & Basic Positioning
| Часть модели | Значение |
| CJX2 | CHINT AC contactor series (equivalent to Schneider LC1‑D series) |
| 32 | Rated operational current 32A (AC‑3 utilization category at 400V) |
| 10 | Auxiliary contacts: 1 НЕТ + 0 Северная Каролина |
Позиционирование продукта:
Industrial‑grade general‑purpose AC contactor, suitable for frequent starting and control of AC motors.
Can form a magnetic starter with thermal overload relays for motor protection.
- Ключевые технические параметры
| Элемент | Спецификация |
| Rated operational voltage | Up to 690V AC (50/60Гц) |
| Rated operational current | 32А (AC‑3 400V), thermal current Ith = 50A |
| Controlled power | 15кВт (AC‑3 380V), 21А (AC‑3 660V) |
| Вспомогательный контакт | 1 НЕТ, rated 5A/220V AC |
| Напряжение катушки | Необязательный: 220V/380V/110V/36V/24V AC |
| Insulation characteristics | UI = 660V, compliant with GB14048.4 / IEC60947‑4‑1 |
| Mechanical / electrical life | 10 миллион раз / 1 миллион раз (АС‑3) |
| Размеры (L×W×H) | 83×58×101 mm |
| Монтаж | Standard 35mm DIN rail |
- Конструктивные особенности & Materials
- Контакты из серебряного сплава: Excellent conductivity and arc resistance, ensuring reliable switching.
- 32‑sheet silicon steel core: Reduces hysteresis loss, smoother pull‑in, stable operation.
- Flame‑retardant housing: Meets V0 flame rating, improves safety.
- Clear side marking: Модель, Напряжение, CCC certification, и т. д..
- Приложения
- Промышленная автоматизация: Motor control, фанаты, насосы, компрессоры.
- Строительная электрика: HVAC, fire pumps, exhaust fans.
- Agricultural machinery: Irrigation, feed processing equipment.
- Power systems: Remote circuit control in distribution panels.
- Typical matching: Long‑running oil station motors, unidirectional equipment (no NC auxiliary required).
- Comparison Within CJX2 Series
| Модель | Номинальный ток | Aux. Контакты | AC‑3 380V Power | Размеры (мм) |
| CJX2‑0910 | 9А | 1 НЕТ | 4кВт | 73×47×82 |
| CJX2‑1810 | 18А | 1 НЕТ | 7.5кВт | 73×47×82 |
| CJX2‑2510 | 25А | 1 НЕТ | 11кВт | 83×58×96 |
| CJX2‑3210 | 32А | 1 НЕТ | 15кВт | 83×58×101 |
| CJX2‑4011 | 40А | 1 НЕТ + 1 Северная Каролина | 18.5кВт | 128×79×116 |
| CJX2‑6511 | 65А | 1 НЕТ + 1 Северная Каролина | 30кВт | 128×79×116 |
- Cross‑Brand Replacements
| Бренд | Запасная модель | Совместимость |
| Шнайдер | LC1N3210M7N / LC1R3210M5N | Same dimensions & parameters |
| Сименс | 3RT6035‑1AN20 (domestic type) | Functionally equivalent, mounting compatible |
| АББ | A145‑30‑11 (32A class) | Aux. can be configured as 1 НЕТ |
| Вкусный | CJX2‑3210 | Fully interchangeable |
| Переключатель Чаншу | CK3‑3210 | Same performance & parameters |
- Выбор & Application Notes
- Напряжение катушки: Selected per control circuit (commonly 220V / 380В).
- Согласование нагрузки: 32A ≈ 15kW at AC‑3 380V; avoid overload.
- Aux. contact expansion: F4‑11 or similar modules can be added.
- Protection coordination: Used with NR2 series thermal relays (например. NR2‑36) for overload protection.
- Среда: Operating temperature ‑5°C ~ +40°C; avoid dust & corrosive gas.
Packing: 4 шт/коробка, 32 pcs/carton
Comparison of CHINT Contactor Series
Overview:
CHINT contactors are divided into:
Classic (CJX2/CJ20/CJX8), Модернизированный (NXC/NC5), High‑Power (NC8), DC Special (CJZ8/NCZ5).
NXC fully replaces CJX2 with better performance; NC5 focuses on intelligence & modularity; NC8 covers ultra‑high current; CJZ8 is for DC control.
Priority: НХС / NC5; use special series for special applications.
- Позиционирование серии & Замена
| Ряд | Positioning | Replaced By / Replaces | Ключевые особенности |
| CJX2 | Classic general | Fully replaced by NXC | Cost‑effective, simple structure, flexible aux. контакты |
| НХС | New generation | Replaces CJX2, upgraded | High efficiency, long life, standard 1NO+1NC, strong modularity |
| NC5 | Smart & premium | Высококлассный рынок | Wide temp ‑25°C~+55°C, коммуникация, complex automation |
| NC8 | High‑power heavy‑duty | Independent, up to 1000A | Up to 1000A AC‑3 415V, for large motors & heavy industry |
| CJX8 | Traditional heavy‑duty | Partially replaced by NC8 | Direct‑operated double break, suitable for legacy retrofits |
| CJ20 | Traditional general | Replaced by NXC/NC5 | Mature structure, low cost, civil & light industry |
| NXC‑XMG | Special load | Independent | For fans & насосы, high energy saving |
| CJZ8/NCZ5 | DC dedicated | Independent | Enhanced arc extinguishing, new energy & накопитель энергии |
- Ключевые технические параметры
2.1 Basic Electrical Data
| Ряд | Текущий диапазон | Номинальное напряжение | AC‑3 380V Power | Standard Aux. Контакты |
| CJX2 | 9A~95A | Up to 690V | 0.75kW~45kW | Below 32A: 1NO/1NC; ≥40A:1НО+1НЗ |
| НХС | 6А~630А | Up to 690V | 0.37kW~315kW | Full range: 1НО+1НЗ |
| NC5 | 6А~630А | Up to 690V | 0.37kW~315kW | 1НО+1НЗ, expandable to 6NO+6NC |
| NC8 | 6A~1000A | Up to 690V | 0.37kW~500kW | 2НО+2НЗ, expandable to 6NO+6NC |
| CJX8 | 9A~250A | Up to 660V | 4kW~110kW | 3NO+1NO/1NC or 4NO |
| CJ20 | 10А~630А | Up to 660V | 5.5kW~315kW | 1НО+1НЗ |
2.2 Life & Среда
| Ряд | Механическая жизнь | Электрическая жизнь (АС‑3) | Operating Temp | Монтаж |
| CJX2 | 10 million | 1 million | ‑5°C~+40°C | 35mm DIN / screw |
| НХС | 12 million | 1.2 million | ‑25°C~+55°C | 35mm DIN / screw |
| NC5 | 15 million | 1.5 million | ‑25°C~+55°C | 35mm DIN / screw |
| NC8 | 10 million | 0.8 million (high current) | ‑25°C~+55°C | Mainly screw |
| CJ20 | 8 million | 0.8 million | ‑5°C~+40°C | Screw |
- Структура & Functional Differences
3.1 CJX2 (Classic)
Структура: Direct‑operated single break, modular; F4 aux., F5 timer, NCF1 side aux. available.
Контакты: Silver alloy, 3P main, flexible aux. (10/01/11).
Катушка: переменный/постоянный ток, 24V~380V.
3.2 НХС (Модернизированный)
Optimized magnetic system, coil power ≈ 30% lower than CJX2.
Improved silver alloy contacts, better arc extinguishing.
Standard 1NO+1NC; supports aux., timer, mechanical interlock.
3.3 NC5 (Smart Premium)
Optional communication module (Модбус, и т. д.) for IIoT.
Wide temperature, suitable for outdoor & harsh environments.
Enhanced insulation & short‑circuit withstand.
3.4 NC8 (High‑Power)
Enhanced arc chamber for high‑current breaking up to 1000A.
Optimized heat dissipation for heavy‑duty continuous operation.
Heavy‑duty mechanical structure, high vibration resistance.
3.5 CJX8 (Traditional Heavy‑Duty)
Direct‑operated double break; front‑connected or rear‑connected versions.
До 4 столбы (3 main + 1 aux or 4 main) for special applications.
3.6 DC Contactors
CJZ8: Low‑voltage DC (12V~220V), up to 40A, small DC loads.
NCZ5: High‑voltage DC (up to 1500V), up to 500A, new energy vehicles & накопитель энергии.
Dedicated DC arc extinguishing structure.
- Сценарии применения
| Ряд | Best For | Typical Load | Not Recommended |
| CJX2 | Legacy retrofit, budget projects | Small motors ≤15kW, освещение, heating | High‑end automation, harsh environments |
| НХС | Промышленная автоматизация, new projects | Medium motors ≤315kW, фанаты, насосы | Ultra‑large motors, special DC loads |
| NC5 | Smart factories, complex systems, outdoor | Середина & большие моторы, production lines | Cost‑sensitive simple circuits |
| NC8 | Large industry, власть, metallurgy | Large motors ≤500kW, трансформаторы | Small loads, civil buildings |
| CJX8 | Legacy maintenance, special control | Traditional machinery, special circuits | New smart projects |
| CJ20 | Civil, light industry, temporary power | AC units, насосы, small machines | Frequent switching, high‑end automation |
| DC series | New energy, накопитель энергии, rail | DC motors, batteries, зарядные устройства | AC loads |
- Selection Guide & Replacements
5.1 Selection Priority
- New projects: НХС (replaces CJX2)
- Smart/complex systems: NC5
- Ultra‑high power >315кВт: NC8
- DC loads: CJZ8 / NCZ5
- Legacy retrofit: CJX2/CJ20/CJX8 or upgrade to NXC/NC5
5.2 Cross‑Series Replacement
| Original | Recommended Replacement | Advantage |
| CJX2‑09~95 | NXC‑06~100 | Standard 1NO+1NC, life +20%, power ‑30% |
| CJ20‑10~630 | NXC‑12~630 / NC8‑12~1000 | Better performance, modular, easier maintenance |
| CJX8‑09~250 | NC8‑06~250 | Better arc extinguishing, wide temperature |
5.3 Model Selection Tips
Current: 32A ≈ 15kW; 63A ≈ 30kW; 100A ≈ 45kW at AC‑3 380V.
Aux. контакты: NXC has 1NO+1NC standard; CJX2 uses 10/01/11.
Катушка: 220V/380V/110V/36V/24V AC/DC.
Монтаж: 35mm DIN preferred; screw for high power.
- Special Notes: CHINT CJX2‑3210
As a representative model of CJX2 series, CJX2‑3210 is a 3‑pole 32A AC contactor with 3 НЕТ главных контактов + 1 NO auxiliary contact, suitable for 15kW motor control at AC‑3 380V.
Common replacements:
CHINT NXC‑3210 (upgraded)
Schneider LC1N3210M7N
Siemens 3RT6035‑1AN20
ABB A145‑30‑11 (32A class)
