LELHK111-31725-20-V

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Circuit breakers are essential components of any electrical system, as they are designed to protect it from damage due to excessive current flows caused by short circuit, overloading or other fault conditions. The LELHK 111-31725-20-V is a two-pole circuit breaker with voltage rating of 277VAC, current rating of 20A, and handle type of Marked OFF-ON. It is designed for residential and light commercial applications, and is UL4795 ADA Compliant. Here’s a look at its application field and working principle.

Application Field

The LELHK 111-31725-20-V circuit breaker is typically used in residential and light commercial applications such as single- and multi-family dwellings, commercial buildings, small motor control applications, and local area lighting systems. It is typically mounted in electrical distribution boards, panel boards, or motor control centers.

Working Principle

Once a current flow is detected that is higher than the specified trip-point of the breaker, the circuit breaker will open the circuit by tripping its internal contacts. This will stop the current flow and prevent damage to the electrical system. Upon opening the circuit, the mechanism inside the breaker will return to its normal position, and an indicator will show a visual indication that the breaker has opened. To close the breaker, the user needs to manually reset the breaker by pressing the toggle switch to the ON position.

In order to protect the circuit from further faults, the breaker has a trip-free function where it will not reset until the fault current is dissipated. This makes it ideal for protecting a circuit from further damage due to short-circuit or overload faults. Furthermore, it is equipped with an adjustable trip-point for increased configurability.

Conclusion

The LELHK 111-31725-20-V circuit breaker is a UL4795 ADA Compliant two-pole breaker designed for residential and light commercial applications such as single- and multi-family dwellings, commercial buildings, small motor control applications, and local area lighting systems. Its working principle is based on detecting excessive current flows above its trip-point and opening the circuit by tripping its internal contacts, which will stop the current flow and prevent damage. After the fault is cleared, the user can manually reset the breaker to the ON position.

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