POWR-SPEED Accessories MS SERIES HIGH-SPEED FUSE MICROSWITCH Microswitch for Square Body Fuse Description Specifications Littelfuse MS series external mount microswitches offer Voltage Rating See Electrical Characteristics table permanent blown fuse indication to PSR and PSX series Amperage Rating See Electrical Characteristics table high-speed square-body semiconductor fuses. They have Operating Temperature -10 C to +125 C one normally open (N.O.) and one normally closed (N.C.) Relative Humidity 85 % contact rated for 4 A, 250 V ac. Contact Silver-nickel plated copper These microswitches have a visual red flap or arm indicator Approvals Internal microswitch part number: that releases after fuse blown condition and can also be MS1-16Z0-A150, recognized under used for resetting the microswitch contacts. UL File: E176213 Flammability UL 94 V0 Environmental RoHS Compliant Features/Benefits Country of Origin China Available in three sizes to fit PSR and PSX series fuses Internal microswitch UL recognized Red flap visual indicator and contact reset mechanism Electrical Characteristics NON-INDUCTIVE LOAD CATALOG ORDERING INSULATION COMPATIBLE PACK INDICATING STYLE FUSE CASE SIZE 30 V 125 V 250 V NUMBER NUMBER VOLTAGE RATING FUSE SERIES QUANTITY DC AC AC MS3H1000C MS3H1000C Standard NO-NC 1000 PSR 30, 31, 32, 33 10 A 16 A 4 A 3 Pcs/Bag MS7H1500C MS7H1500C Standard NO-NC 1500 PSR 70, 71, 72, 73 10 A 16 A 4 A 3 Pcs/Bag MSXL2000C MSXL2000C Standard NO-NC 2000 PSX 1XL, 3XL 10 A 16 A 4 A 1 Pcs/Bag Littelfuse.com/microswitch 2021 Littelfuse, Inc. 1 of 3 Rev: 2-B-092821 POWR-SPEED Accessories MS SERIES HIGH-SPEED FUSE MICROSWITCH Dimensions MS3H1000C 16.04 0.631 2.34 0.092 10.02 0.394 REF WHEN OPEN 23.05 0.907 MS3H1000C 34.85 1.372 15.95 0.628 42.00 1.654 10.35 0.407 32.35 1.274 39.00 1.535 MS7H1500C 21.05 0.829 7.35 0.289 10.02 0.394 REF WHEN OPEN 23.03 MS7H1500C 34.83 1.371 0.907 15.93 0.627 32.35 1.274 42.00 1.654 10.33 0.407 63.00 2.480 MSXL2000C 1/4 Q.C TERMINALS VISUAL INDICATOR 42.00 1.654 117.09 4.610 32.54 1.281 18.84 0.742 10.02 0.394 REF 10.0 WHEN OPEN 10.0 MSXL2000C 23.05 0.907 33.83 1.332 15.95 0.628 31.33 10.35 0.407 1.234 MS7H1500C MS3H1000C 33.4 33.4 32.3 32.3 Littelfuse.com/microswitch 2021 Littelfuse, Inc. 63.0 2 of 3 Rev: 2-B-092821 42.0 42.0 39.0