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Motor HP table for sizing of upstream Circuit Breakers and Safety Switches

Issue:
Motor HP rating tables for sizing of upstream Circuit Breakers and Safety Switches, based on 2005 NEC Tables 430-147, 430-148, 430-150

Product Line:
Circuit Breakers (inverse-time thermal-magnetic and electronic) and Safety Switches

Environment:
Applies to selection of inverse-time circuit breakers and safety switches
Does not apply to the selection of motor circuit protectors or overload relay thermal units.

Cause:
Assistance is needed for selecting a circuit breaker or safety switch to feed a motor

Resolution:
If a circuit breaker or safety switch is to be used to protect a motor, the attached table has information to help you select the proper size. This is from Digest 176, page 7-33, dated 2012.
(These tables do not apply when selecting a motor circuit protector or overload relay thermal unit.)
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