LELK0-37909-1

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Circuit Breakers

LELK0-37909-1 circuit breakers are a type of circuit protection device designed to protect electrical circuits from overloads and short circuits. They are commonly used in industrial, commercial and residential applications.

The LELK0-37909-1 circuit breaker is an industrial-grade circuit breaker manufactured by the ASEA Brown Boveri Company. It is a three-pole circuit breaker, meaning that it has three independently movable poles for carrying electrical current.

The LELK0-37909-1 circuit breaker is rated for a current capacity of up to 800A and a voltage range of up to 690V AC. It is designed to trip and open the circuit in the event of an overload or short circuit. It is also designed to reset automatically after the fault condition has been cleared.

The LELK0-37909-1 circuit breaker is designed to be mounted in industrial control panels, or other applications where circuit protection is required. It is designed in accordance with international safety standards, ensuring that it meets all safety requirements.

The working principle of the LELK0-37909-1 circuit breaker is based on the principles of thermo-mechanical operation. This means that the circuit breaker operates by detecting heat generated by an overload condition, and then mechanically tripping to open the circuit.

When an overload or short circuit occurs, the heat generated from the current flow causes a bimetallic element to heat up. The heating up of the bimetallic element causes it to bend, thereby actuating the trip mechanism to open the circuit.

The tripping mechanism of the LELK0-37909-1 circuit breaker also includes a spring-loaded plunger, which is released upon the load current exceeding the trip setting. This causes the mechanical lever arrangement to move the plunger downward, pushing the contacts apart and opening the circuit in the process.

Once the circuit has been opened, a reset switch must be pressed in order to reset the circuit breaker. This reset switch can be located on the front of the circuit breaker, or on a separate panel.

The LELK0-37909-1 circuit breaker is UL and CSA listed, meaning that it has been tested and approved for use in commercial and industrial applications. It is typically used in industrial control panels, power distribution panels, motor control centers, HVAC systems and other applications requiring short circuit and overload protection.

In summary, the LELK0-37909-1 is an industrial grade circuit breaker designed to protect electrical circuits from overloads and short circuits. It operates on the principles of thermo-mechanical operation to detect an overload or short circuit and then trips to open the circuit so that the fault can be fixed. The LELK0-37909-1 is a three-pole circuit breaker rated at up to 800A and 690V AC, and is UL and CSA listed for safety. It is commonly used in industrial, commercial and residential applications, and is typically found in industrial control panels, power distribution panels, motor control centers, HVAC systems and other applications requiring circuit protection.

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