Arc extinguishing cover of molded case circuit breaker26

Product Description

Tailored specifically for molded case circuit breaker breaking systems, this product's core advantage lies in its precise coordination with circuit breaker contact movements. Through synergistic operation, it achieves stable and efficient arc quenching control, enhancing the operational reliability of the breaking system at its core. It is widely compatible with molded case circuit breaker assembly requirements across multiple fields, including industrial power distribution, complete electrical equipment, and new energy power stations.
During product development, we deeply aligned with the structural characteristics and operational logic of mainstream molded case circuit breaker breaking systems. Through precise dimensional design and position calibration, we ensure high-level coordination with contact movements. When the circuit breaker triggers the breaking action, the arc generated at the instant of contact opening is rapidly guided into the arc-extinguishing hood. The arc-extinguishing structure precisely aligns with the movement trajectory of the contacts, neither obstructing their normal operation nor allowing arc escape or extinguishing delays caused by misalignment. This establishes a foundation for the stability of the arc-extinguishing process.
Leveraging this high-efficiency coordination with the contacts, the product achieves outstanding arc-quenching control. During the breaking process, the arc-quenching hood synchronously completes the entire arc-capture, segmentation, cooling, and extinction cycle according to the contact's operational rhythm. Compared to generic arc-quenching components, its arc-quenching response speed improves by over 35%, rapidly weakening arc energy within an extremely short timeframe to prevent arc reignition or arc flash risks. This coordinated control characteristic ensures the circuit breaker's breaking system maintains stable performance when handling fault currents from overloads or short circuits, significantly reducing the probability of fault escalation.
The product utilizes high-quality, high-temperature-resistant insulating materials, precision injection-molded to deliver outstanding resistance to arc erosion and thermal shock. It withstands dual impacts from contacts and arcs during breaking, exhibiting minimal structural deformation or performance degradation over extended use. Additionally, the standardized assembly interface design allows the product to rapidly adapt to multiple models of molded case circuit breaker breaking systems. Installation is convenient and requires no additional debugging, significantly improving the assembly efficiency of complete equipment sets.
Rigorous quality control throughout the entire production process covers critical aspects including raw materials, structural precision, compatibility performance, and arc-quenching effectiveness, ensuring each product precisely meets the demands of the breaking system. Selecting this arc-quenching cover achieves optimal coordination between the contacts and arc-quenching components of the molded case circuit breaker breaking system, comprehensively enhancing breaking performance and providing core support for the safe operation of power systems.

Composition

Five arc-extinguishing grids + two pieces of red steel paper.

The raw material for the arc-extinguishing grids is Q235-A (Q195) that has undergone Zn6 environmentally friendly salt spray 72H coating physical and chemical treatment.

Parameters