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MERLIN GERIN, MASTERPACT

Utility Relay Company has several different versions of complete retrofit kits for the MASTERPACT breaker.

A direct replacement trip unit is available for the following trip unit types.

  • STR-18M
  • STR-28D
  • STR-38S
  • STR-58U

 

 

Please visit our Kit Ordering Guide page and use the interactive online ordering system to determine the exact kit you need. You can also Contact Us if you need assistance