High-Performance JCZ5 Series AC High Voltage Electric Vacuum Magnetic Contactor for Substations

Engineered for reliability in critical power infrastructure, the JCZ5 series AC high voltage electric vacuum magnetic contactor is a three-phase, 50Hz indoor switching solution rated up to **12kV and 630A**. Ideal for substations, industrial plants, and utility distribution networks, it enables frequent, arc-free operation of high-voltage motors, transformers, and capacitor banks—delivering unmatched safety and longevity in demanding environments.

This advanced vacuum contactor combines electromagnetic actuation with hermetically sealed interrupters to ensure consistent performance under heavy-duty cycling. With a mechanical life of **2 million operations** and a rated operating frequency of **300 cycles per hour**, the JCZ5 excels where conventional switches fail. Its robust insulation system withstands **32kV power frequency voltage**, meeting stringent IEC and GB standards for medium-voltage switchgear.

Key advantages of the 10kV vacuum contactor for substation include:

• Multiple current ratings: 160A, 250A, 400A, and 630A to match diverse load profiles

• High making/breaking capacities—up to 6300A making and 5000A breaking (10 operations)

• Limited maintenance needs thanks to sealed vacuum arc quenching technology

• Compact modular design for easy integration into metal-enclosed switchgear

• Suitable for both motor control and feeder switching in indoor installations

As illustrated in the image above, the JCZ5’s clean, symmetrical structure reflects its focus on thermal stability and electrical integrity. Whether used as a standalone unit or integrated into intelligent protection systems, this AC vacuum switch for substation delivers precision, durability, and compliance with modern grid reliability requirements—making it a smart choice for utilities and industrial operators upgrading their medium-voltage infrastructure.