8340-T120-K1T1-ALH126-20A

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Circuit breakers are a type of protective device used in electrical panels to protect circuits from overload and short circuits. The 8340-T120-K1T1-ALH126-20A is a circuit breaker with specific characteristics that make it suitable for certain applications. The following will describe the application field and working principle of this circuit breaker.

Application Field

The 8340-T120-K1T1-ALH126-20A circuit breaker is designed for industrial, commercial, and residential applications. It is ideal for use in environments with a large load current such as commercial and industrial buildings, as well as environments that require a high degree of protection such as health care facilities. This circuit breaker is capable of providing overload protection and short circuit protection to circuits up to 600V.

The 8340-T120-K1T1-ALH126-20A circuit breaker is UL 489 listed, which means it meets specific industry safety standards. This circuit breaker is also rated IP44 so it can be trusted to protect circuits against dust and moisture, making it suitable for use in damp or wet locations.

Working Principle

The 8340-T120-K1T1-ALH126-20A circuit breaker is an integrated circuit breaker, which means it contains a bimetal strip and current limiting element. When an overload or short circuit occurs on the circuit, the bimetal strip bends due to the heat created by the increased current and the current limiting device, usually a fuse, opens and interrupt the circuit.

The 8340-T120-K1T1-ALH126-20A circuit breaker is designed with a thermal magnetic overcurrent trip unit. This unit uses both an electromagnetic current sensing and thermal detection component to detect overloads or short circuits. The current sensing component triggers an alarm if the current reaches a certain level, while the thermal component opens the breaker if the temperature reaches a certain threshold.

The 8340-T120-K1T1-ALH126-20A circuit breaker also includes a manual reset button, which allows a user to reset the breaker if it trips due to an overload or short circuit. The breaker will remain off until the reset button is pushed, at which time the breaker will reset and the circuit will be restored.

Conclusion

The 8340-T120-K1T1-ALH126-20A circuit breaker is a reliable and safe protective device for industrial, commercial, and residential applications. This circuit breaker is UL 489 listed and rated IP44, making it suitable for damp or wet locations. It is designed with a thermal magnetic overcurrent trip unit and a manual reset button to protect circuits from overloads or short circuits.

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