LEL111-36714-1-V Circuit Protection

Circuit breakers are essential devices in the electrical engineering world. They are used to protect electrical equipment from excessive current or in the event of a short circuit. A circuit breaker is a type of switch that is able to detect the presence of a fault and is able to open the circuit in a matter of milliseconds. In this article, we will focus on the LEL111-36714-1-V circuit breaker and explain the applications and working principle.

Applications

The LEL111-36714-1-V circuit breaker is a single pole, thermal and magnetic trip unit approved for residential and commercial use. It is suitable for use in main and supplementary circuits with a rated working voltage of 277 VAC. The maximum working current is 20 amps and the maximum breaking capacity is 13kA. This circuit breaker is UL 489 and CSA approved for safety.

The LEL111-36714-1-V circuit breaker provides protection against overloaded and short-circuit current, as well as a manual reset capability. It is a great choice for a wide range of applications such as HVAC, motors, pumps, and lighting, among others. It can be used in residential, commercial and industrial applications as it is UL 489 listed.

Working Principle

The working principle of the LEL111-36714-1-V circuit breaker is the same as for most other thermal-magnetic circuit breakers. It has two elements working together in order to protect the circuit: a thermal element and a magnetic element. The thermal element is responsible for detecting excess current in the circuit and will heat up rapidly when current flows above the rated value. This will cause the bimetallic element to expand, which actuates the tripping mechanism and causes the breakers contact to open.

The magnetic element helps to provide a further level of protection by detecting the buildup of heat during a short circuit. When the current reaches a certain level, it will cause a magnetic force to actuate the tripping mechanism, causing the breaker to open. This helps to ensure that the circuit is protected from damaging short circuit currents.

In order to reset the breaker, the user will need to push the reset button. This will reset the breaker and allow it to reset in order to provide protection again. It is important to remember that this type of breaker will need to be reset manually after each trip.

Conclusion

The LEL111-36714-1-V circuit breaker is a great choice for a wide range of applications such as HVAC, motors, pumps, and lighting. It has a thermal and magnetic trip capability for providing additional protection against overloads and short circuit currents. The resetting of the breaker is manual, which means that the user will need to reset after each trip.