121B10-B2M-HB

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Circuit breakers are basic components of the electrical system and are responsible for ensuring safety and isolating electrical energy; they are responsible for controlling, protecting and isolating electrical circuits. The 121B10-B2M-HB Circuit Breakers are a range of molded case circuit breakers which provide protection in multiple circuits. It is mainly used when installing basic switchgear protection systems.

The 121B10-B2M-HB circuit breakers are single-pole manual breakers, with a rated current of 10A and a voltage rating of 690V AC. The 121B10-B2M-HB circuit breaker is made of a metal frame, a base and a rigid plastic body. The body is a double insulation system with a high-current, high-strength and durable plastic insulation material. The base is equipped with pivoting contacts for easy installation and adjustment. The metal frame provides maximum protection from contamination and dust. At the center of the metal frame is a snap-action switch that opens the circuit when the current exceeds the rated limit.

The working principle of the 121B10-B2M-HB circuit breaker is very straightforward; the metal frame protects the breaker from contamination and dust, while the spring-loaded contacts open up when the current exceeds the rated limit. When the contacts open, an arc suppressor is used to suppress the current, preventing the arc from blowing up and shutting the circuit down. This ensures that the circuit is safely isolated from any further damage.

In summary, the 121B10-B2M-HB circuit breaker is designed to provide safe and reliable overcurrent protection in multiple circuits. Its metal frame provides maximum protection from contamination and dust while its spring-loaded contacts open up when the current exceeds the rated limit. The arc suppressor helps suppress the current when the contacts open up, ensuring the circuit is safely isolated from any further damage.

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