Sentron Molded Case Circuit Breakers - Motor Circuit Protectors

Siemens instantaneous trip motor circuit protectors are recommended for use in combination motor starters to provide selective short-circuit protection for the motor branch circuit.  The adjustable instantaneous trip feature of the Siemens motor circuit protector provides for a trip setting slightly above the peak motor in-rush current.   This circuit breaker has no time-delay trip element. Therefore it must be used in conjunction with-and immediately ahead of-the motor-running over current protection device.  Each Sentron motor circuit protector accepts the same terminals and accessories as the equivalent Sentron circuit breakers. 

Features and Benefits

  • Amperages ranging from 1A to 800A

  • ED 125A Frame Motor Circuit Protector have five mag settings

  • 250A to 800A Frame Motor Circuit Protectors have six mag settings

  • Standard and High Interrupting ratings available in most frame sizes


Did this information help you?