STR58UP

STR58UP, Square D, Merlin Gerin, Schneider Electric, Masterpact, trip units and programmers/programmers, suitable for use with all type M,MP, 3P or 4P, 800A - 6300A, 600V, insulated case circuit breakers, Solid State electronic protection, LSI - Long-Time, Short-Time and Instantaneous trip functions, control unit (long-time = 0.8x1 plug rating), these trip unit devices are now obsolete; however, we do still stock them and we offer modern day direct replacements