Capacitive Switch Contactors: Overview of the CJ19(16) Series

Capacitor switching contactors, particularly the CJ19(16) series, are designed for efficient switching of low-voltage parallel capacitors. This series includes models CJ19(16)-25, 32, 43, 63, 85, and 95, primarily used in 380V 50Hz reactive power compensation equipment. These contactors are equipped with advanced features, including surge current suppression devices to minimize the impact of closing surge currents on the capacitors, thereby reducing switching overvoltages during disconnection. Their compact design and lightweight construction make them ideal for a wide range of applications.

 

Capacitive switching contactors operate under specific normal conditions and installation parameters to ensure optimal performance. The ambient temperature should not exceed 40°C with a relative humidity of 50%, and 20°C with a relative humidity of 90%. These contactors are designed to operate effectively in environments up to 2000 meters above sea level. Maintaining an environment free from harmful gases, vapors, conductive or explosive dust, and severe mechanical vibration is crucial. Why is this so important? Because maintaining these conditions ensures the lifespan and reliability of the contactors under various operating conditions.

 

Capacitive switching contactors must also comply with specific installation guidelines. The tilt angle between the mounting surface and the vertical plane should not exceed 5°, and the pollution level is 3. This level indicates that the contactor is suitable for moderately polluted environments, ensuring its effective operation without interference from external contaminants. Its installation category is Class III, which further guarantees the safety and reliability of the device in various applications.

 

Capacitive switching contactors, particularly the CJ19(16) series, offer significant advantages over traditional switching devices. These contactors replace the traditional combination of one contactor and three current-limiting reactors, providing a more streamlined solution. Their powerful switching capabilities, coupled with their compact size and lightweight design, make them easier to install and integrate into existing systems. This efficiency is particularly beneficial for industries looking to optimize reactive power compensation systems without sacrificing performance.

 

The CJ19(16) series of capacitive switching contactors represents a significant advancement in reactive power management. With their robust design, strict adherence to demanding operating conditions, and innovative features, these contactors are well-suited for a wide range of applications. Whether you are looking to enhance an existing system or implement a new reactive power compensation solution, the CJ19(16) series is a reliable and efficient choice.

Capacitor Switching Contactor


Post time: Nov-26-2025