A motor circuit switch is generally required to be rated in what unit?

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Multiple Choice

A motor circuit switch is generally required to be rated in what unit?

Explanation:
Motor circuit switches are sized by the motor’s power output, typically expressed as horsepower. This HP rating directly indicates the size of the switch needed to safely disconnect the motor under full-load and fault conditions, aligning with how motor controllers are selected and with code guidance. While voltage and current matter for installation, horsepower provides a straightforward, standard way to reflect the motor’s mechanical load and the interrupting capacity required, which is why it’s the common rating used for motor disconnects.

Motor circuit switches are sized by the motor’s power output, typically expressed as horsepower. This HP rating directly indicates the size of the switch needed to safely disconnect the motor under full-load and fault conditions, aligning with how motor controllers are selected and with code guidance. While voltage and current matter for installation, horsepower provides a straightforward, standard way to reflect the motor’s mechanical load and the interrupting capacity required, which is why it’s the common rating used for motor disconnects.

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