Metal Bracket for Circuit Breaker Operating Mechanism

As the core transmission carrier for the electromagnetic trip system of low-voltage circuit breakers, this component achieves coil former positioning and guide support for the moving iron core push rod through multi-stage bending and precision punching. Its irregular cross-section design balances compact installation space with mechanical linkage stability. Commonly used in the opening and closing mechanisms of molded case circuit breakers (MCCB), it converts electromagnetic attraction into precise mechanical displacement to drive contact action.

The manufacturing focus lies in controlling springback consistency after stamping to ensure the U-slot opening dimensions and the relative positional accuracy of lateral mounting holes meet assembly tolerances. This prevents mechanism jamming or asynchronous operation caused by deformation. The part surface is electro-galvanized, offering excellent corrosion resistance. Strict control of coating thickness uniformity is required to guarantee electrical insulation distance and mechanical strength under long-term current-carrying conditions.

Supported by an ISO 9001 quality management system, our factory is equipped with precision presses from brands such as Gu'anli and Boxin, along with video measuring instruments. This enables closed-loop control from mold development to mass production. We verify coating corrosion resistance using salt spray testing machines and strictly control key mating dimensions. Our products meet the stringent delivery standards of industry leaders like CHINT and DELIXI, and we support customization of operating mechanism brackets for different pole configurations based on drawings.