MA3250TV, Westinghouse, MA Series, type , interchangeable trip unit with LI - Long-Time and Instantaneous trip functions, rated for 250A, 50°C, suitable for 800A- MA,HMA standard, Saf-T-Vue or MARK 75 molded case circuit breaker frame types, Thermal Magnetic trip units and programmers & circuit breakers; these trip units are obsolete; however we do still stock them

MA2500TA, Westinghouse, MA Series, type , interchangeable trip unit with LI - Long-Time and Instantaneous trip functions, rated for 500A, 50°C, suitable for 800A- MA,HMA standard, Saf-T-Vue or MARK 75 molded case circuit breaker frame types, Thermal Magnetic trip units and programmers & circuit breakers; these trip units are obsolete; however we do still stock them

MP63H-3P-6000A-MO-DO-LSG, Merlin Gerin, insulated case circuit breaker, Masterpact, type , 6300A frame, includes 6300A sensor rating with 6000A rating plug, 3P, 3PH, 600V, 100kA@480V, accepts the following programmer/trip unit devices: STR28D, STR28DP, STR38S, STR38P, STR38ST, STR38SW, STR58U, STR58UP, STR58UT, STR58UW, STR68U, AC-PRO-MP, Solid State electronic, insulated case circuit breakers

HLB3400TV, Westinghouse, MARK 75, type , interchangeable trip unit with LI - Long-Time and Instantaneous trip functions, rated for 400A, 50°C, suitable for 400A- LB,HLB standard, Saf-T-Vue or MARK 75 molded case circuit breaker frame types, Thermal Magnetic trip units and programmers & circuit breakers; these trip units are obsolete, however we do still stock them

HLB2250TA, Westinghouse, MARK 75, type , interchangeable trip unit with LI - Long-Time and Instantaneous trip functions, rated for 250A, 50°C, suitable for 400A- LB,HLB standard, Saf-T-Vue or MARK 75 molded case circuit breaker frame types, Thermal Magnetic trip units and programmers & circuit breakers; these trip units are obsolete, however we do still stock them

MP08-3P-150A-EO-BO-LSG, Merlin Gerin, insulated case circuit breaker, Masterpact, type , 800A frame with 250A trip and 150A rating plug, 3P, 3PH, 600V, 50kA@480V, accepts the following programmer/trip unit devices: STR28D, STR28DP, STR38S, STR38P, STR38ST, STR38SW, STR58U, STR58UP, STR58UT, STR58UW, STR68U, AC-PRO-MP, Solid State electronic, insulated case circuit breakers

MP63H2-3P-6300A-MO-DO-LIG, Merlin Gerin, insulated case circuit breaker, Masterpact, type , 6300A frame, includes 6300A sensor rating with 6300A rating plug, 3P, 3PH, 600V, 125kA@480V, accepts the following programmer/trip unit devices: STR28D, STR28DP, STR38S, STR38P, STR38ST, STR38SW, STR58U, STR58UP, STR58UT, STR58UW, STR68U, AC-PRO-MP, Solid State electronic, insulated case circuit breakers

MA3600TV, Westinghouse, MA Series, type , interchangeable trip unit with LI - Long-Time and Instantaneous trip functions, rated for 600A, 50°C, suitable for 800A- MA,HMA standard, Saf-T-Vue or MARK 75 molded case circuit breaker frame types, Thermal Magnetic trip units and programmers & circuit breakers; these trip units are obsolete; however we do still stock them

MP12H2-3P-1200A-EO-BO-LS, Merlin Gerin, insulated case circuit breaker, Masterpact, type , 1200A frame, includes 1200A sensor rating with 1200A rating plug, 3P, 3PH, 600V, 100kA@480V, accepts the following programmer/trip unit devices: STR28D, STR28DP, STR38S, STR38P, STR38ST, STR38SW, STR58U, STR58UP, STR58UT, STR58UW, STR68U, AC-PRO-MP, Solid State electronic, insulated case circuit breakers

HNB2900T, Westinghouse, MARK 75, type , interchangeable trip unit with LI - Long-Time and Instantaneous trip functions, rated for 900A, suitable for 1200A- NB,HNB,NBY Standard, Saf-T-Vue or MARK 75 molded case circuit breaker frame types, Thermal Magnetic trip units and programmers & circuit breakers; these trip units are obsolete; however we do still stock them

HLA3500TV, Westinghouse, MARK 75, type , interchangeable trip unit with LI - Long-Time and Instantaneous trip functions, rated for 500A, 50°C, suitable for 600A- LA,HLA standard, Saf-T-Vue or MARK 75 molded case circuit breaker frame types, Thermal Magnetic trip units and programmers & circuit breakers; these trip units are obsolete, however we do still stock them

HKA3200TV, Westinghouse, MARK 75, type , interchangeable trip unit with LI - Long-Time and Instantaneous trip functions, rated for 200A, 50°C, suitable for 225A- KA,HKA standard, Saf-T-Vue or MARK 75 molded case circuit breaker frame types, Thermal Magnetic trip units and programmers & circuit breakers; these trip units are obsolete; however we do still stock them

HLB2350T, Westinghouse, MARK 75, type , interchangeable trip unit with LI - Long-Time and Instantaneous trip functions, rated for 350A, suitable for 400A- LB,HLB standard, Saf-T-Vue or MARK 75 molded case circuit breaker frame types, Thermal Magnetic trip units and programmers & circuit breakers; these trip units are obsolete, however we do still stock them

HKB2100T, Westinghouse, MARK 75, type , interchangeable trip unit with LI - Long-Time and Instantaneous trip functions, rated for 100A, suitable for 250A- KB,HKB standard, Saf-T-Vue or MARK 75 molded case circuit breaker frame types, Thermal Magnetic trip units and programmers & circuit breakers; these trip units are obsolete, however we do still stock them

25RES12T, Cutler Hammer, Series G, type , interchangeable rating plug element, rated for 1200A, suitable for use with the 2500A current sensor rating, to be used with Series C & Series G- RD,RDC,CRD,CRDC,RGH,RGC,RW,RWC molded case circuit breaker frame types, for use with DIGITRIP,RMS310,RES solid state electronic trip units & circuit breakers

LT360039, Cutler Hammer, Series G, type , interchangeable trip units and programmers with ALSIG - Arcflash Reduction, Long-Time, Short-Time, Instantaneous and Ground Fault trip functions, rated for 600A, suitable for Series G LGE,LGS,LGH,LGC,LGU,LGX molded case circuit breaker frame types with Arcflash reduction maintenance system, Solid State electronic trip units & circuit breakers

A25RES25T2, Cutler Hammer, Series G, type , interchangeable rating plug element, rated for 1250-2500A, suitable for use with the 2500A current sensor rating, to be used with Series C & Series G- RD,RDC,CRD,CRDC,RGH,RGC,RW,RWC molded case circuit breaker frame types, for use with DIGITRIP,RMS310,RES solid state electronic trip units & circuit breakers

KA2200T, Westinghouse, KA Series, type , interchangeable trip unit with LI - Long-Time and Instantaneous trip functions, rated for 200A, suitable for 225A- KA,HKA standard, Saf-T-Vue or MARK 75 molded case circuit breaker frame types, Thermal Magnetic trip units and programmers & circuit breakers; these trip units are obsolete; however we do still stock them

HMA3200T, Westinghouse, MARK 75, type , interchangeable trip unit with LI - Long-Time and Instantaneous trip functions, rated for 200A, suitable for 800A- MA,HMA standard, Saf-T-Vue or MARK 75 molded case circuit breaker frame types, Thermal Magnetic trip units and programmers & circuit breakers; these trip units are obsolete; however we do still stock them

LA3175TV, Westinghouse, LA Series, type , interchangeable trip unit with LI - Long-Time and Instantaneous trip functions, rated for 175A, 50°C, suitable for 400A- LA,HLA standard, Saf-T-Vue or MARK 75 molded case circuit breaker frame types, Thermal Magnetic trip units and programmers & circuit breakers; these trip units are obsolete, however we do still stock them

HKA32250TM, Cutler Hammer, MARK 75, type , interchangeable trip unit with I - Instantaneous only trip function, rated for 225A, magnetic trip range 1125-2250A, suitable for 225A- KA,HKA Magnetic Only front adjustable molded case circuit breaker frame types, Magnetic Only trip units and programmers & circuit breakers; these trip units are obsolete; however we do still stock them

HKA2700TM, Westinghouse, MARK 75, type , interchangeable trip unit with I - Instantaneous only trip function, rated for 225A, magnetic trip range 350-700A, suitable for 225A- KA,HKA Magnetic Only front adjustable molded case circuit breaker frame types, Magnetic Only trip units and programmers & circuit breakers; these trip units are obsolete; however we do still stock them

LC11127, Square D, Square D Series, type , under voltage release, 24VDC, (1) undervoltage trip, when installed in a circuit breaker the part number suffix is -1121, suitable for use with LC,LCF,LCL,LCP,LE,LEF,LEL,LEP,LI,LIF,LIL,LIP,LX,LXF,LXL,LXP,LXI,LXIF,LXIL,LXIP frame molded case circuit breakers

HLB2200T, Westinghouse, MARK 75, type , interchangeable trip unit with LI - Long-Time and Instantaneous trip functions, rated for 200A, suitable for 400A- LB,HLB standard, Saf-T-Vue or MARK 75 molded case circuit breaker frame types, Thermal Magnetic trip units and programmers & circuit breakers; these trip units are obsolete, however we do still stock them