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Difference between Relay and Circuit Breaker

Author : Date : 12/6/2018 1:18:19 AM

What is the difference between Relay and Circuit Breaker?

• The relay is used for controlling a circuit with isolation between control circuit and the controlled circuit. Circuit breaker is used for disconnecting or isolating a circuit from the power source or a higher level circuit.

• The relay operates on a low power voltage input while circuit breakers are automatic on-load devices.

• Circuit breakers are used one per circuit while relays can be used to control/select one among many connected to it.

• A relay may be included in a circuit breaker, but not the other way around.

• A relay can also be considered as an electrical amplifier for discrete signals.

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Difference between Relay and Circuit Breaker