Indoor Vacuum Circuit Breaker

The HUAJIDIAN 11kV 630A Vacuum Circuit Breaker (VCB) is a core protection and control device developed specifically for 12kV, 50Hz three-phase AC power systems. Leveraging the mature R&D and manufacturing capabilities of a specialized factory, the product utilizes an epoxy resin solid-sealed insulation structure. It offers exceptional mechanical and electrical longevity and superior fault protection, making it suitable for complex operating conditions—such as high altitudes, high humidity, and frequent switching operations—and widely applicable in power grids, industrial and mining enterprises, and high-rise building distribution systems.

HUAJIDIAN’s proprietary 35kV/33kV vacuum circuit breaker serves as a core protection component for medium-voltage power distribution. It utilizes APG (Automatic Pressure Gelation) solid-insulated poles and an integrated spring operating mechanism. With rated currents ranging from 630A to 1250A, it provides comprehensive circuit protection against overloads, short circuits, and leakage. As a specialized Chinese manufacturer of high-voltage electrical equipment, HUAJIDIAN supplies industrial enterprises, substations, and chemical parks, effectively addressing industry pain points such as limited installation space, frequent maintenance requirements, and operational errors.