LELK1-36785-20

Circuit Breakers: LELK1-36785-20 application field and working principle

Circuit breakers are essential in today’s electrical systems for the protection of electrical equipment and personnel reviewing the installation. The LELK1-36785-20 is a circuit breaker suitable for both residential and commercial applications due to its incredible size and power ratings. This article takes a deeper look at the application field and working principle behind a LELK1-36785-20 circuit breaker.

Application Field

This particular circuit breaker is designed to be used as a residential circuit breaker and has been tested to UL Standard 489. This circuit breaker is designed with a housing and transparent cover that will allow the user to view the internal electrical wiring. This view makes the circuit breaker incredibly useful in residential applications as it allows the user to easily examine, troubleshoot, and replace any components that need to be serviced.

In addition, this circuit breaker is perfect for commercial applications due to its current capacity and power ratings. The LELK1-36785-20 has a current rating of 125 amps and a power rating of 18kW. This device also contains an inrush current rating of 10 times the nominal rating, meaning that it can handle significantly larger loads than standard specification devices.

Working Principle

The LELK1-36785-20 is an air-break circuit breaker, meaning that it is designed to open a circuit using an air gap between two contact points. This air-gap is created when the user triggers the breaker’s operation using a switch or push button. This action causes a copper plunger to descend, breaking the current loop by opening the circuit. As the circuit is broken, the air-break gap forces air around the circuit, preventing it from being closed again until it is manually reset.

The LELK1-36785-20 is also designed with a thermal-magnetic release, which will instantly trip the device in the event of an overload or short circuit. This thermal-magnetic release is designed to detect changes in both temperature and current draw, enabling it to quickly respond when unusual conditions are present. If the device does trip, the circuit can be reset once the root cause of the trip has been fixed.

Conclusion

The LELK1-36785-20 air-break circuit breaker is an essential component for residential and commercial applications. With its small size and large power ratings, it is able to handle large loads with relative ease. Additionally, its thermal-magnetic release design ensures that it can quickly detect and respond to any overload or short-circuit conditions, ensuring safe and reliable operation.