Контактор Чинт CJX2-5011

Chint Contactor CJX2-5011 is a three-phase AC contactor specifically designed for industrial control. It is suitable for frequent starting and stopping of motors, системы распределения электроэнергии, и автоматизированное оборудование. Ниже приводится краткое изложение основной информации.:

1. Технические параметры и производительность
2. Электрические характеристики

Номинальный ток: 50А (under AC-3 utilization category and 380V voltage), which can meet the control requirements of motors ranging from 7.5kW to 15kW.

Вспомогательные контакты: 1 Нормально открытый (НЕТ) + 1 Нормально закрытый (Северная Каролина), supporting interlocking or signal feedback circuits.

Напряжение катушки: Available in multiple options including 24V, 36В, 110В, 220В, и 380В, compatible with different control power supplies.

Номер полюса: 3 столбы (3П), подходит для трехфазных цепей.

Напряжение изоляции: 660В (per IEC standard) or 690V (per GB standard), meeting the requirements of high-voltage environments.

2. Механические и экологические характеристики

Механическая жизнь: Над 6 миллион операций; electrical life can reach 1.2 миллион операций (для АС-3), подходит для сценариев высокочастотной работы.

Способ монтажа: Supports 35mm DIN rail or screw fixing, compatible with industrial standardized installation.

Рабочая температура: -5от ℃ до +40 ℃, adaptable to a wide temperature range.

Система пожаротушения дуги: Adopts a double-break structure and arc-extinguishing grids, with an arc distance of less than 10mm to ensure safety.

3. Сертификация и соответствие

– Certified to GB14048.4 (Китай) and IEC60947-4-1 (международный) стандарты; some models have obtained CE certification.

– Complies with the requirements of pollution degree 3 and installation category Ⅲ for industrial environments.

1. Сценарии применения
2. Управление двигателем

It can directly control the starting and stopping of 7.5kW to 15kW motors, and supports complex logic such as star-delta reduced-voltage starting and reversible control. Typical applications include fans, водяные насосы, компрессоры, и другое оборудование.

2. Промышленная автоматизация

As an executive component of PLC systems, it is used for sequential control of production line equipment, starting and stopping of conveyors, и т. д., and is compatible with 24V~415V wide-voltage control signals.

3. Power Distribution and Energy Sector

It controls air conditioning and lighting systems in building electrical systems, and realizes circuit on-off in new energy scenarios (such as solar inverters).

4. Замена и обновление

It can directly replace Schneider LC1-D50 series contactors, or be upgraded to Chint’s new-generation NXC series (например, НХС-50). The latter has a mechanical life increased to 55 million operations and better arc-extinguishing performance.

III. Цена и каналы покупки

1. Рыночная цена

Международный рынок: Approximately USD 14.46 за единицу (under FCA terms). The specific price fluctuates according to the voltage model and purchase quantity.

1. Рекомендации по установке и использованию
2. Характеристики проводки

Основная схема: Connect L1/L2/L3 to the three-phase power supply, and T1/T2/T3 to the load (например, мотор). It is recommended to use 16mm² copper core wires.

Схема управления: Connect the coil terminals A1/A2 to the control voltage. The auxiliary NO contact is used for self-locking, and the NC contact is used for interlocking (see the sample wiring diagram for details).

Заземление: The metal housing must be reliably grounded to avoid electromagnetic interference.

2. Commissioning and Maintenance

– Перед установкой, check whether the coil voltage matches, and manually operate the contactor to confirm that the contacts move flexibly.

– Monitor the temperature rise of the contacts during operation. If the temperature exceeds 70℃, it is necessary to check for overload or poor contact.

– Regularly clean the arc-extinguishing chamber and replace worn silver contacts (it is recommended to check once every 500,000 операции).

1. Alternative Models and Upgrade Recommendations
2. NXC Series Contactors

Преимущества: Модульная конструкция, support for more contact combinations (например, 2НО+2НЗ), arc distance shortened to within 10mm, and adaptation to the digital needs of smart factories.

Совместимость: NXC-50 can directly replace CJX2-5011 without changing the installation holes or circuit layout.

2. Alternatives from Other Brands

– Schneider LC1-D50: Fully compatible in parameters but relatively higher in price.

– Delixi CDX2-5011: Close in cost-effectiveness; some models provide UL certification.

1. User Reviews and Precautions
2. Отзывы пользователей

– Most users recognize its durability, with no faults during continuous operation under resistive loads for 2 годы.

– Some users mentioned that the 220V coil may malfunction during voltage fluctuations, and it is recommended to use it with a voltage stabilizer.

2. Меры предосторожности при выборе

– Confirm the load type: Different contact capacities are required for AC-3 (моторы) and AC-4 (high-inductance loads).

– Экологическая адаптивность: It is recommended to install a dust cover in dusty environments; prioritize the NXC series in high-temperature environments.