Page 44 - SACE Tmax XT - Technical Catalogue
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1/40             SACE TMAX XT LOW VOLTAGE MOLDED CASE CIRCUIT-BREAKERS



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          Characteristic curves


          Trip curves with electronic trip unit Ekip Dip









         XT2 - XT4 Ekip M-LIU                                 XT2 - XT4 Ekip M-LIU
         L function (cold trip)                               (hot trip)
            t [s]                                                t-hot/t-cold
          10 4                                                 1.2
                       0.4...1
                    0.4   1
          10 3                                                 1
                                                                                3E   5E   10E  20E

          10 2                                                 0.8
                                20E

          10                                                   0.6
                    3E
           1                                                   0.4


          10 -1                                                0.2


          10 -2                                                0

          10 -3                                               - 0.2
            10 -1       1           10          10 2            1            10          10 2        10 3
                                                x In                                               Time [s]





         XT2 - XT4 Ekip M-LIU                                 XT2 - XT4 Ekip M-LIU
         I function                                           U function

            t [s]                                               t [s]
          10 3                                                10 4

          10 2                                                10 3
                                  6   13
          10                                                  10 2


           1                                                   10

          10 -1                                                1


          10 -2                                               10 -1

          10 -3                                               10 -2


          10 -4                                               10 -3
            10 -1       1           10          10 2            10 -1        1           10          10 2
                                                x In                                                 x I1
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