Page 19 - Ferraz semiconductor BS88
P. 19

Semiconductor fuses
       Semiconductor (AC) fuses


       Other Protistor Fuses
                                 ®
       BS88-4 Fuses
       10x51, 17x49, 2X17x49, - 690 VAC






       D.C Applications data







































                                                       Curves and Ipm for each rating
                                                      Class  Rated current  *  I pm (A)
                                                                5        4   40
       • These curve indicate the permissible                   6        4   48
       value of time constant L/R as a function                10        4   60
                                                      URE      12        4   84
       of the D.C. working voltage.
                                                               15        4   112
                                                               20        4   140
                                                               16        3   96
                                                               20        3   140
                                                               25        3   175
                                                               32        3   255
       • These Ipm values give the minimum
                                                               35        3   300
       DC interrupting current in amps.
                                                               40        3   320
                                                      URS      45        3   335
                                                               50        3   350
                                                               55        3   365
                                                               63        3   390
                                                               75        2   425
                                                               80        1   440
                                                               65        3   510
                                                               75        3   550
                                                               85        3   590
                                                      URT      90        3   610
                                                               110       3   685
                                                               140       3   800
                                                               150       2   840
                                                               160       1   880



                                                          SCAC213
       12/04
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