LEG66-1-69-2.50-A-01-V

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Circuit breakers are essential safety components for protecting machinery and prevent damage due to electric currents. The LEG66-1-69-2.50-A-01-V is an example of a circuit breaker, and its application field and working principle are essential to understanding how it operates.

This LEG66-1-69-2.50-A-01-V circuit breaker is a medium voltage circuit breaker, designed for general protection applications with a rated voltage of 3.6 kV with a rated current of 2.5 A. It is mostly used in industrial applications, and is ideal for medium voltage motor protection, or protecting machines that use up to 3.6 kV of power.

The LEG66-1-69-2.50-A-01-V circuit breaker is designed to automatically detect any electrical faults or overcurrents, and break the circuit to protect the machine and prevent damage from occurring. It is a thermal-magnetic type, which means it combines two methods to detect overcurrents, thermal and magnetic.

The thermal element in the circuit breaker is designed to detect an overcurrent and trip the breaker when the current level reaches a certain point. This breaker uses an Integrated Thermostat, which is an exposed bimetallic element that is used to detect overcurrents. When the current level reaches a certain point, the bimetallic element is heated up, and with the help of a trip spring, this movement causes the breaker to trip and turn off the power.

The magnetic element in the circuit breaker works in the same way, but relies on a solenoid to detect overcurrents. When an overcurrent is detected, the solenoid generates a magnetic field that forces the trip or latch mechanism to cut the power to the circuit. If the current falls back to safe levels, the latch mechanism will reset and the circuit can be restarted.

These two elements working together make the LEG66-1-69-2.50-A-01-V an effective and reliable circuit breaker that can handle medium voltage applications. It is designed to automatically detect overcurrents and short circuits, and trip the breaker to protect the machine from further damage.

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