Arc extinguishing cover of molded case circuit breaker16

Product Description

As a core protective component for molded case circuit breakers, this arc extinguishing cover withstands demanding high-frequency operation through superior heat resistance and robust mechanical strength. It delivers long-term reliability for secure power system operation, making it a dependable choice for industrial power distribution and complete electrical equipment.
Enhanced by both material technology and structural design, this product exhibits exceptional heat resistance. Its specialized insulating material undergoes modified processing, enabling it to withstand the instantaneous high-temperature arc impact generated when the circuit breaker interrupts fault currents. This prevents material softening, carbonization, or cracking, ensuring consistent insulation performance and structural integrity. Simultaneously, the product's mechanical strength has been precisely calculated and rigorously validated, delivering outstanding resistance to impact and deformation. It effectively withstands mechanical vibrations and airflow shocks during closing and opening operations, eliminating the risk of arc-extinguishing failure due to component deformation.
For complex operating conditions involving frequent switching cycles, this product demonstrates exceptional performance stability. In scenarios requiring high-frequency handling of distribution line overloads and short-circuit faults, most traditional arc-extinguishing components experience performance degradation due to repeated exposure to high temperatures and mechanical impacts, ultimately compromising the circuit breaker's breaking efficiency and service life. This arc-extinguishing cover maintains consistent performance during prolonged, high-frequency operation. It efficiently segments and cools arcs to enhance the circuit breaker's interrupting capacity while minimizing arc erosion damage to internal core components. This fundamentally reduces equipment failure probability and effectively extends the overall service life of the circuit breaker.
Furthermore, adhering to standardized design principles, this product features dimensional precision strictly aligned with industry standards. It is compatible with multiple models of molded case circuit breakers, offering straightforward installation without requiring additional debugging. From incoming raw material inspection to final product testing, a comprehensive quality control system ensures every unit meets the highest industry performance standards. Whether in heavy-duty power distribution systems for industrial plants or precision power networks for commercial buildings, this arc-extinguishing cover delivers stable, reliable performance, establishing a robust defense for the safe operation of electrical equipment.

Composition

14 arc-extinguishing grid plates + 2 arc-isolating plates.

Arc-extinguishing grid plates: Serial number one is 1.5mm cold-rolled steel plate Q235-A, serial number two is 1.5mm cold-rolled steel plate Q195, serial number three is 2.0mm cold-rolled steel plate Q195.
Arc-isolating plates: 1.5mm melamine fiberglass cloth plate.

Parameters