Types of Approved Motor Disconnecting Means

A horsepower-rated _____ having a horsepower rating not less than the motor rating shall be permitted to serve as the disconnecting means.

a) attachment plug and receptacle
b) flanged surface inlet and cord connector
c) automatic controller
d) a or b

See answer and applicable Code reference

The correct answer is: d) a or b

Article 430 covers motors, motor circuits and controllers. Part VIII of this Article is specific to motor control centers. As noted in the first sentence of Sec. 430.109(F), "For a cord-and-plug-connected motor, a horsepower-rated attachment plug and receptacle, flanged surface inlet and cord connector, or attachment plug and cord connector having ratings no less than the motor ratings shall be permitted to serve as the disconnecting means."

 

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