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Semiconductor fuses
                                                   Semiconductor (AC) fuses


                                                                 Protistor Square-body Fuses
                                                                                ®
                                                      PSC aR sizes 3x - 450V to 700 VAC
                                                                     Microswitches PSC 3x &7x






             - MICROSWITCH SYSTEMS ADAPTED

              TO THE FOLLOWING FERRAZ SHAWMUT FUSES ONLY:
             - PSC sizes 30, 31, 32, 33, 2x32, 2x33 / 70, 71, 72, 73, 272, 273
              except plain blades

             - PSC LR sizes 33, 233, 73, 273
             - PERMANENT INDICATION OF FUSE STATE: CONDUCTIVE                                           MS 7V 1-5

                                                        BLOWN
             - MANUAL RESETTING
             - STANDARD AND LOW ELECTRICAL LEVEL WITH DIFFERENT INSULATION LEVELS

             - BS TYPE FOR USE IN CORROSIVE ATMOSPHERE
             - MS 3V 1-5 UR AND MS 7V 1-5 UR TYPE UL ARE RECOGNIZED


            Main Characteristics


                               AC                                   Breaking Capacity    AC voltage  Impulse
                            Insulation  Positive  Current                                withstand  voltage test  Fire class
                 Code        voltage   operating              Non inductive circuit Inductive circuit : L/R = 25ms   test  Uimp1.2/50  according
                             rating   voltage/current  rating  Current                              µs     to UL 94
                              (***)                           30V 110V 250V 30V 110V 250V   (*)     (**)
               MS 3V 1-5                               50/60 Hz 10 A  10 A 10 A 10 A 10 A 10 A  8,5 kV  14 kV
              MS 3V 1-5 UR   1000 V      20 V
                                                  10 A
               MS 7V 1-5                 50 mA
                             1500V
              MS 7V 1-5 UR                               DC   8 A  0,4 A 0,2 A 4 A 0,2 A 0,1 A  12 kV  20 kV
              MS 3V 1-5 BS                             50/60 Hz 3 A  3 A  3 A  2 A  1 A  1 A   8,5 kV  14 kV  H.B
                             1000 V
              MS 3V 1-9 BS               10 V
                                                  3 A
              MS 7V 1-5 BS               10 mA           DC   3 A  0,5 A 0,25 A 3 A 0,2 A 0,1 A  12 kV  20 kV
                             1500V
              MS 7V 1-9 BS
              MS 3V 1-5 ET   1000V       10 V          50/60 Hz 3 A  3 A  3 A  2 A  1 A  1 A  8,5 kV  14 kV
                                                  3 A
              MS 7V 1-5 ET   1500V       10 mA           DC   3 A  0,5 A  -  2 A 0,2 A  -  12 kV   20 kV
             *     Between power circuit and microswitch terminals as per IEC 60 and 694 and NFC 64010 (50/60 Hz 1 min duration in dry air)
             **   Between power circuit and microswitch terminals Uimp: impulse voltage as per IEC 60947-1
             *** Between power circuit and microswitch terminals

             Warning: microswitch systems exclusively designed for FERRAZ SHAWMUT.
             PSC Fuses fitted a petented trip-indicator, saving use of EDV





















                                                          SCAC92                                               12/04
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