ECN Forum Forums General Topics of the Trade General Discussion Area Motors calcs for intermittant use?

From your description, Art.430.33 last paragraph would indicate that the motor is to be considered as continuous.
“Any motor application shall be considered to be for continuous duty unless the nature of the apparatus it drives is such that the motor cannot operate continuously with load under any condition of use”
Is it the operator’s option not to use the motor for more than those few minutes or is there an operational limit that prevents continuous use? If it’s a judgment call on the part of the operation, not all operators use the same standards of judgment.