LELK11-39433-20 Circuit Protection

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Circuit breakers are electrical components that open an electrical circuit when an overload or short circuit are detected. By doing so, they help to protect the electrical system from damage. The LELK11-39433-20 circuit breaker is a miniature thermal circuit breaker that carries a current rating of 16 amps and a voltage rating of 250 VAC/DC.

Application Field

The LELK11-39433-20 is typically used for industrial applications such as pumps, motors, or compressors. It is also used for industrial lighting, data center circuit protection, and communication equipment. The device has UL and VDE approval, which makes it suitable for use in many other European markets as well.

Working Principle

The LELK11-39433-20 Circuit Breaker is a thermal type device, meaning it uses heat to sense overloads. The operating principle of this type of circuit breaker is based on the heating and cooling of bimetallic strips. A bimetallic strip is made up of two different types of metals that expand at different rates when heated. Under normal operating conditions, these strips stay in their original position due to their bond. However, when an electrical overload condition occurs, the strip heats up due to current flow. The strip then expands until its spring pressure causes the circuit breaker to trip, breaking the circuit and preventing further damage.

Conclusion

The LELK11-39433-20 circuit breaker is a reliable device used for industrial applications such as motors, pumps, and compressors. It is also suitable for industrial lighting, data center circuit protection, and communication equipment. This circuit breaker operates on a thermal principle, whereby the heating and cooling of bimetallic strips are used to detect and trip during overload conditions.

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