Arc extinguishing cover for small circuit breaker33

Product Description

This compact arc extinguishing cover serves as a core component tailored for miniature circuit breakers. Through precise structural design and high-performance material selection, it achieves deep compatibility with the installation dimensions and operating conditions of various miniature circuit breakers. It provides a reliable arc suppression and protection solution for circuit breaking systems, widely applied in circuit safety assurance systems across industrial control, building power distribution, and household appliances.
The product's core advantage stems from the use of high-quality, high-temperature-resistant insulating materials. The selected insulating base materials undergo rigorous screening and performance testing, exhibiting excellent high-temperature resistance. They can stably withstand the high-temperature impact generated by arcs during circuit breaker tripping, preventing material degradation, carbonization, and subsequent deterioration of insulation effectiveness. Additionally, the materials exhibit superior dielectric strength and corona resistance, effectively shielding internal metal components from arc erosion, reducing insulation breakdown risks, and extending the overall service life of the circuit breaker.
For core arc-quenching functionality, the product employs a scientifically designed grid structure and airflow guidance system to rapidly direct arcs generated during circuit breaker operation into the arc-extinguishing chamber. The grid structure effectively fragments long arcs into multiple short arcs, significantly increasing arc voltage drop and disrupting conditions for sustained arc combustion. Simultaneously, integrated with specialized internal airflow channels, it accelerates thermal exchange between the arc and insulating materials, achieving rapid arc cooling and extinction. Field testing confirms that equipping small circuit breakers with this arc-extinguishing hood substantially enhances their breaking capacity, enabling stable handling of short-circuit current interruptions within rated limits. This significantly reduces safety hazards such as fires and equipment damage caused by delayed arc extinction.
This product prioritizes core performance optimization while ensuring installation convenience and structural stability. Its modular design precisely matches the dimensions of mainstream miniature circuit breakers, enabling rapid assembly without modifying the breaker's main structure. The compact design maximizes arc-quenching effectiveness while minimizing installation space requirements, adapting to diverse installation scenarios. Furthermore, the product undergoes rigorous long-term environmental testing for vibration resistance and humidity tolerance, maintaining stable performance under complex operating conditions to provide continuous assurance for the safe and stable operation of circuit systems.
As a critical protective component for miniature circuit breakers, this arc-extinguishing cover stands as a core solution for enhancing circuit-breaking safety levels. Its precise compatibility, superior high-temperature insulation performance, and efficient arc-quenching capability make it an essential upgrade. Whether in precision power distribution systems for industrial production or standard power circuits in residential buildings, integrating this product strengthens circuit fault-breaking reliability. It fortifies defenses for electrical equipment and personnel safety, empowering users to build safer, more stable circuit operating environments.

Composition

14 arc-extinguishing grid plates + 2 arc-extinguishing chamber supports.

The arc-extinguishing grid plates numbered one and two are made of 1.5mm cold-rolled steel plate (10mm), the arc-extinguishing grid plate numbered three is made of 2mm cold-rolled steel plate (10mm), and the arc-extinguishing chamber supports are made of 1.5mm epoxy glass cloth board (3240).

Parameters