Page 30 - SACE Tmax XT - Technical Catalogue
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1/26             SACE TMAX XT LOW VOLTAGE MOLDED CASE CIRCUIT-BREAKERS



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          Characteristic curves


          Trip curves with thermal magnetic trip unit









          Trip curves for distribution

          XT1 160 TMD In=16...63A                             XT1 160 TMD In=80...160A


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


          10 3                                                10  3


          10 2                                                10  2


          10                                                   10


           1                                                   1


          10 -1                                               10  -1
                                                                                                  I 3 =10xIn
                            In=40A    I 3 =450A
                            In=63A    I 3 =10xIn
          10 -2                                               10  -2
            10 -1         1            10           10 2        10  -1        1             10           10  2
                                                    x I 1                                                x I 1



          XT2 160 TMA In=1.6...50A                            XT2 160 TMA In=63...160A


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

          10 3                                                10 3



          10 2                                                10 2


          10                                                   10


           1                                                   1

                              In=16...25A
          10 -1                                               10 -1
                              In=1.6...12.5A
                              In=40A
                              In=50A
          10 -2                                               10 -2
            10 -1         1            10           10 2        10 -1         1             10           10 2
                                                    x I 1                                                x I 1
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