JLM-1-30353-6-V Circuit Protection

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Circuit breakers are a type of electrical device that open a circuit when abnormal conditions occur. They provide a safe way to protect electronic equipment from shocks, excessive current, and short circuits. The JLM-1-30353-6-V circuit breaker is one type of such device, and its application field and working principle are discussed in this article.

Application Field
The JLM-1-30353-6-V circuit breaker is a single-pole, manually operated thermal-magnetic device. It is equipped with a push-button trip indicator, as well as auxiliary and alarm contacts to monitor the circuit condition. It is suitable for the protection of low voltage AC and DC circuit, with its rated current not exceeding 25A. This type of circuit breaker is also suitable for power distribution in lighting, heating, cooling, power, and motor control systems. Additionally, it can be used in electric vehicles, aircraft, ships, electric tools, robotics, and other related applications.

Working Principle
The JLM-1-30353-6-V is composed of two parts, the thermal element and the magnetic element. The thermal element is a bimetallic strip that will deform responsive to temperature increases, due to heat generated from excessive current within the circuit. The magnetic element consists of a short-circuit protection coil. This coil generates an electromagnetic field that can open the breaker when the current exceeds the rated value, caused by a short circuit. The push-button mechanism is to manually trip the circuit breaker on and off, as well as providing the trip indication functions. The auxiliary and alarm contacts work to monitor if the circuit is in an abnormal condition.

In summary, the JLM-1-30353-6-V circuit breaker is primarily used to protect low voltage circuits from damage caused by over-current and short-circuits. It is suitable for a wide variety of power distribution, electric vehicles, or motor control applications. The device consists of a thermal element, magnetic element, push-button trip mechanism, as well as auxiliary and alarm contacts. Its thermal element responds to increased temperature due to an over-current condition, while its magnetic element opens the breaker when a short-circuit occurs. This provides safety and protection to the circuits connected to the device.

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