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Circuit Breakers: IULHK21-38938-80 Application Field and Working Principle

Circuit breakers are electrical devices that can interrupt an electrical circuit to protect it from any damage from an overload or short circuit. They are commonly found in residential, commercial, and industrial installations, and are used to prevent catastrophic damage from an electrical fault. The IULHK21-38938-80 circuit breaker is a purpose-designed breaker specifically for the residential market.

Application Field

The IULHK21-38938-80 circuit breaker is designed to meet the residential electrical code. It is rated for use in homes with voltages up to 600 volts, and is suitable for use with circuits that draw up to 200 amps. It is also designed to be used in conjunction with other safety measures such as ground fault circuit interrupters (GFCI) and arc fault circuit interrupters (AFCI).

Working Principle

The basic working principle of a circuit breaker is that it interrupts the flow of electricity in a circuit when there is an overload or short circuit. This interruption prevents damage to the wiring and other components of the electrical system. When an overload or short circuit occurs, the breaker trips, stopping the flow of electricity and preventing any further damage to the circuit. The breaker itself is composed of a number of components, including the breaker contacts, the operating mechanism, and the reset mechanism.

The contacts in the breaker consist of movable contacts and stationary contacts. When the circuit is undisturbed, the contacts remain apart and no electricity flows through the circuit. When a circuit is overloaded or a short circuit occurs, the contacts close and the electricity flows through the circuit. This causes the breaker to trip and the electricity is shut off. The reset mechanism, which is a spring-loaded component, then resets the breaker and restores the circuit to normal operation.

Conclusion

The IULHK21-38938-80 circuit breaker is an effective and reliable protection option for residential applications. It is designed to trip when an overload or short circuit occurs, protecting the circuit from any damage. It is easily reset, allowing the circuit to return to normal operation. With these features, it is an ideal choice for residential applications.

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