JCZ5-12kV Indoor High Voltage AC Vacuum Contactor – 160A/250A/400A/630A Three-Pole Magnetic Switch for Motor and Transformer Control

JCZ5-12kV Indoor High Voltage AC Vacuum Contactor (160A – 630A)

Product Overview

The JCZ5-12kV Series is a high-performance indoor AC high-voltage vacuum contactor designed for three-phase AC 50Hz power systems. Engineered for 12kV and 7.2kV applications, it excels in the remote making and breaking of circuits, specifically for the control of high-voltage motors, power transformers, and capacitive load equipment such as capacitor banks. Its compact, lightweight “packaged up and down” assembled structure follows international design trends for easy integration into modern electrical panels.

Core Features & Technical Advantages

• High Reliability & Stability: The vacuum interrupter technology ensures almost no wear when breaking the arc, providing superior stability during high-frequency operations.

• Extended Service Life: Features a mechanical life of up to 300,000 operations and an AC-3 electrical life of 250,000 operations, significantly reducing maintenance cycles and costs.

• Dual Keeping Modes: Available in both closing mechanical keeping and electromagnetic keeping forms to suit various circuit protection requirements.

• Low Maintenance Design: Because internal components are sealed in a vacuum, they are protected from oxidation and corrosion caused by external environmental factors.

• Precision Performance: Offers excellent three-phase break-brake synchronism ($\le 2ms$) and rapid closing times ($\le 150ms$) for critical power switching.

Technical Specifications

Standard Operating Conditions

• Ambient Temperature: Reliable operation between -5°C and +40°C.

• Altitude: Optimized for installations up to 1,000 meters above sea level.

• Humidity Limits: Relative humidity should not exceed 50% when the temperature is at its highest (+40°C).

• Pollution Degree: Classified as Class 3 for industrial environment suitability.