Arc extinguishing cover of frame circuit breaker5

Product Description

The arc-extinguishing cover of a frame circuit breaker is a critical core component ensuring the breaker achieves high breaking capacity and safe operation. Its performance directly determines the breaker's breaking effectiveness and reliability under extreme conditions such as high currents and short-circuit faults. This arc-extinguishing cover for frame circuit breakers is specifically optimized for high-breaking capacity requirements. It rapidly disperses and cools arc energy during the breaking instant, providing stable and efficient arc-extinguishing protection for the circuit breaker. This effectively reduces equipment losses and enhances overall operational quality.
During circuit breaking, the arc releases significant thermal and electromagnetic energy, subjecting the contacts and internal structure to intense impact. Through scientific structural layout and rational arc-guiding design, this arc-extinguishing cover rapidly directs, elongates, and disperses the arc upon entry. Arc energy is effectively attenuated through multi-stage channels. By accelerating arc cooling and extinction, it significantly enhances the circuit breaker's breaking capacity and current-limiting performance while mitigating risks during operation.
The arc-extinguishing hood utilizes high-performance insulating materials selected for their superior resistance to high temperatures, arc erosion, and insulation properties. It withstands repeated high-temperature impacts and energy releases under high-breaking-capacity conditions. The material exhibits strong stability, resisting carbonization or aging, thereby maintaining the long-term effectiveness of the arc-extinguishing structure. This ensures the circuit breaker retains reliable arc-extinguishing performance even after multiple short-circuit interruptions.
Furthermore, the arc-extinguishing cover features a compact yet robust structural design that maintains mechanical stability under high-energy arcs, preventing deformation or damage. Its effective arc control significantly reduces erosion of contacts and adjacent components, lowering maintenance frequency and extending the overall service life of the circuit breaker. This helps users reduce operational and maintenance costs.
This product offers excellent adaptability, providing stable compatibility with multiple frame circuit breaker models. It features easy installation and convenient maintenance/replacement, making it suitable for applications demanding high breaking capacity, such as industrial power distribution systems, large-scale building power distribution, and power infrastructure. Even under complex operating conditions and high loads, it reliably ensures safe and secure operation for power distribution systems.
In summary, this frame circuit breaker arc extinguishing cover achieves rapid dispersion and cooling of arc energy through optimized design for high-breaking capacity requirements. It delivers stable, efficient arc extinguishing protection, serving as a critical component for enhancing the safety, reliability, and service life of power distribution equipment.

Composition

1 arc-extinguishing cover + 2 insulating gaskets + 2 side plates + 2 arc-blocking plates + 13 arc-extinguishing components + 1 arc-starting angle + 1 bracket + 4 self-tapping screws.

Arc-extinguishing cover raw material: BMC-1(2102)
Insulating gaskets: Item 2 is 0.5mm red steel cardboard, Item 12 is 2mm red steel cardboard
Side plates: 2 melamine glass laminates
Arc-blocking plates: PA46 TE250F6 natural color
Arc-extinguishing components: Item 7 is 2.5mm cold-rolled steel plate, Item 11 is PA46 TE250F6 natural color
Arc-starting angle: ASD16DC
Bracket: BMC-1(2102)
Self-tapping screws: GB/T 846 ST3.5X16

Parameters