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SQUARE D / MERLIN GERIN MASTERPACT MP

URC has direct replacement kits to replace the STR 18M, 28D, 38S and 58U trip units in SQUARE D and MERLIN GERIN circuit breakers. .

AC Circuit BreakerTrip Units in Masterpact MP Breakers

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