JLM-1-1REC5-32243-250

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Circuit breakers are an integral part of any electrical system. These devices are designed to detect and limit the fault current that flows through the circuit, thereby ensuring the safety of persons and equipment. The JLM-1-1REC5-32243-250 is a specific type of circuit breaker designed for usage in medium-voltage power systems.

Application Field

The JLM-1-1REC5-32243-250 is a medium-voltage circuit breaker designed for use in high power networks with voltages ranging from 2.3kV to 24kV. These circuit breakers are designed for use in a variety of applications including motor control, power distribution, and general circuit protection. The JLM-1-1REC5-32243-250 is particularly well suited for use in motor circuits and other applications where steady-state overload protection is needed.

Working Principle

The principle of operation for the JLM-1-1REC5-32243-250 circuit breaker is known as thermal-magnetic operation. This means that the circuit breaker relies on two components in order to safely open and close the main contact: the bimetal mechanism and electromagnet.

The bimetal mechanism is a thermal component which is designed to detect and quickly react to overload conditions. It is a strip of metal composed of two different materials with different coefficients of expansion. When current exceeding a preset value flows through the circuit, the metal strips heat up and bend. This generates a mechanical force which is used to open the main contact and break the circuit.

The electromagnet is a magnetic component which is designed to quickly react to short circuit conditions. It is a coil of wire that contains an electromagnet in its center surrounded by an iron core. When the current flow in the circuit exceeds a preset value, the electromagnetic force generated by the coil can be used to physically pull the main contact and open the circuit.

The combination of the two components, the bimetal mechanism and the electromagnet, give the JLM-1-1REC5-32243-250 circuit breaker its unique thermal-magnetic operation. This allows the circuit breaker to not only provide reliable overcurrent protection but also provide quick and effective short circuit protection.

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