219-4-26959-3

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Circuit Breakers

Circuit breakers are safety devices designed to help protect electrical systems from damage caused by overload or short circuit. Circuit breakers come in a variety of sizes and types, depending on their application and working principle. This article will discuss the 219-4-26959-3 type circuit breaker and its application field and working principle.

Application Field

The 219-4-26959-3 type circuit breaker is used in low voltage electrical systems for residential and commercial applications. It is typically found in circuit boxes or breaker panels in service entrances, meters, and distribution systems. This type of circuit breaker is designed to provide over-current protection for lighting systems, heating and cooling systems, water heaters, and other home appliances. The breaker is UL listed and circuit rated from 125 amps to 400 amps.

Working Principle

The 219-4-26959-3 type circuit breaker utilizes a bimetallic strip to detect if an over-current or short circuit condition has occurred. The bimetallic strip is made of two different metals that contract and expand at different rates when exposed to heat. This allows the strip to bend when it is heated and this bending causes the contacts in the circuit breaker to open and break the circuit. The method of tripping used by the 219-4-26959-3 circuit breaker is known as thermal trip. When the current in the circuit rises above the designated amperage, the bimetallic strip will heat up and cause the breaker to trip and break the circuit. This type of circuit breaker can also be set to maintain a specific current level in a circuit for an extended period of time.

The 219-4-26959-3 type circuit breaker is a reliable and economical choice for both residential and commercial low voltage applications. This type of breaker is simple to install and operate and provides protection from overloads and short-circuit conditions. The thermal trip mechanism ensures that the breaker trips when required, providing maximum protection for the electrical system.

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