What is the function of a bypass contactor in motor protection?

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The function of a bypass contactor in motor protection is primarily to facilitate maintenance while keeping power to the motor. This is crucial in industrial applications where continuous operation is needed, but regular maintenance or inspections are also necessary. By using a bypass contactor, power can be rerouted away from the control circuitry, allowing technicians to work on the motor or associated components without cutting off power to the motor itself.

This capability ensures that the motor can continue to run, maintaining production flow, while allowing for safe access for maintenance personnel. Therefore, the bypass contactor plays a vital role in operational flexibility and safety during maintenance activities, making it an essential component in motor protection schemes.

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