LELB1-1REC4-40417-60-V

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Circuit breakers are a very important and indispensable part of modern electric power systems. They are used to disconnect circuits quickly and safely when abnormal current conditions occur. The LELB1-1REC4-40417-60-V is one type of circuit breaker, designed for light switch networks, rated current 100A, rated action target 4000A, rated thermal action 2700A and rated operating voltage 600V. In this article, the application field and working principle of this type of circuit breaker will be discussed.

Application Field of LELB1-1REC4-40417-60-V

The type of circuit breaker represented by the model number LELB1-1REC4-40417-60-V is suitable for interrupting and opening or closing operations under normal conditions of frequency 50/60Hz and rated current up to 100A in AC 50/60Hz power systems. The main task of this type of breaker is to protect power lines from abnormal current, such as overcurrent or short-circuit shock currents. These circuit breakers have two separate functions: one is overcurrent protection; the other is thermal protection.

Working Principle of LELB1-1REC4-40417-60-V

The working principle of the LELB1-1REC4-40417-60-V is based on a combination of overcurrent protection and thermal protection. The overcurrent protection function is based on three components: a trip coil, a trip action target, and a trip lever mechanism. The trip coil generates an electromagnetic force when there is an overcurrent, which is then applied to the trip action target, pushing the lever mechanism to disconnect the circuit. The thermal protection function uses a set of bimetallic elements to detect when the temperature of the circuit breaker reaches a temperature level that may cause damage. When the temperature level is exceeded, the bimetallic elements expand, pushing the trip lever mechanism to disconnect the circuit.

In addition, some LELB1-1REC4-40417-60-V models have a manual trip mechanism. This is used to manually disconnect a circuit when required; for example, if the circuit breaker has detected an abnormality, but the overcurrent protection has failed to trip. This manual trip feature may also be used to reset the circuit breaker, once the abnormality has been resolved.

Conclusion

The LELB1-1REC4-40417-60-V is a type of circuit breaker specifically designed for light switch networks, rated current 100A, rated action target 4000A, rated thermal action 2700A and rated operating voltage 600V. Its primary purpose is to protect power lines from abnormal current, such as overcurrent or short-circuit shock currents. The working principle of the circuit breaker combines overcurrent and thermal protection, using a trip coil, a trip action target, a trip lever mechanism, and bimetallic elements to detect temperature. In addition, some models have a manual trip mechanism, allowing users to manually reset the circuit breaker if required.

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