Arc extinguishing cover of molded case circuit breaker19

Product Description

As a core performance component for molded-case circuit breakers, this arc-extinguishing hood leverages its optimized internal channel design to achieve dual acceleration in arc cooling and deionization. This significantly boosts the circuit breaker's breaking efficiency and operational reliability, making it a highly adaptable choice for industrial power distribution and complete electrical equipment applications.
The product's core competitiveness lies in the scientifically optimized internal channel design. Through fluid simulation and arc dynamics analysis, the R&D team precisely calibrated the airflow path, cross-sectional dimensions, and grid plate layout within the arc extinguishing hood. This creates a highly efficient arc-quenching chamber tailored to the movement patterns of the arc. When the circuit breaker interrupts fault current, the arc is rapidly drawn into the internal channels. The optimized streamlined structure accelerates air convection within the chamber, swiftly dissipating the substantial heat generated by the arc to achieve ultra-rapid arc cooling. Simultaneously, specially designed channel walls and multi-stage grids significantly increase the arc's contact area with insulating media, accelerating the recombination and dissipation of charged particles. This efficiently advances the deionization process, fundamentally shortening arc extinction time.
This high-efficiency arc cooling and deionization capability directly translates into dual improvements in circuit breaker breaking efficiency and reliability. Compared to traditional arc-extinguishing components, this product enables circuit breakers to interrupt fault currents in shorter durations, effectively preventing issues like contact welding and insulation degradation caused by prolonged arcing. Even under demanding conditions of high load and frequent interruptions, the product maintains stable performance, consistently ensuring reliable circuit breaker operation and significantly reducing equipment failure downtime.
Adhering to standardized design principles, this arc-extinguishing cover features dimensional precision strictly aligned with industry standards. It seamlessly integrates with various molded-case circuit breakers, requiring no additional modifications for immediate deployment. From raw material selection to final product shipment, rigorous quality control throughout the entire process ensures every unit meets industrial-grade performance standards. Whether in heavy-duty industrial high-power distribution systems or precision power networks in commercial buildings, this product establishes a robust safety barrier for stable power system operation through its exceptional arc-quenching performance.

Composition

14 arc-extinguishing grid plates+2 arc-isolating walls+2 partition plates. The arc-extinguishing grid plates are made of 1.5mm cold-rolled steel plate (Q235), and the arc-isolating walls are made of 1.5mm melamine fiberglass cloth.

Parameters