Page 194 - EPR Catalog 2015
P. 194

General technical data, Accessories, Current transformers
Technical diagrams - CM-range

Load limit curves                                                                           DC load (resistive)
CM-S (22.5 mm), CM-E (22.5 mm), CM-UFD.M22
                                                                                                    V
AC load (resistive)                                                                              300
                                                                                            V 200
2V                                                    2CDC 252 194 F0205                                                                                                          2CDC 252 193 F0205
              300                                                  2CDC 252 194 F0205                                                                                                          2CDC 252 193 F0205
          V 200

                100                                                                                           100
                 80                                                                                            80
                 60                                                                                            60
                 50                                                                                            50
                 40                                                                                            40
                 30                                                                                            30

                 20                                                                                            20

                10           0.5 1  2 4 6 10                                                                  10                                    0.5 1  2 4 6 10
                  0.1 0.2           IA                                                                          0.1 0.2                                    IA

Derating factor F for inductive AC load                                                     Contact lifetime

      1.0                                             2CDC 252 192 F0205                    Switching cycles                                                                                           2CDC 252 148 F0206
      0.9                                                        2CDC 252 192 F0205
      0.8                                                                                                                                                  250 V                                            2CDC 252 148 F0206
 F                                                                                                                                                         resistive load
      0.7
      0.6
      0.5

          0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
                                               cos ϕ

                                                                                                                                                           Switching current [A]

CM-N (45 mm)AC voltage [V]          resistive load                  2CDC 252 157 F0206      DC load (resistive)AC voltage [V]                                                                          2CDC 252 158 F0206

AC load (resistive)                 1 2 4 6 10                          2CDC 252 157 F0206      400                                                                                                           2CDC 252 158 F0206
                                                    AC current [A]                              300
    400                                                                                         200
    300
    200

                100                                                                                           100                                            resistive load
                 80                                                                                            80
                 60                                                                                            60                                          1 2 4 6 10
                 50                                                                                            50                                                          AC current [A]
                 40                                                                                            40

                 30                                                                                            30

                 20                                                                                            20

                10      0.2  0.5                                                                              10                               0.2  0.5
                   0.1                                                                                           0.1

Derating factor F for inductive AC load                                                     Contact lifetime                                                                                           2CDC 252 156 F0206
                                                                                                106
     1.0                                              2CDC 252 192 F0205                    Switching cycles
     0.9                                                         2CDC 252 192 F0205                                                                        250 V AC
     0.8                                                                                                                                                   resistive load
 F
     0.7                                                                                                      105
     0.6
     0.5

          0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
                                              cos ϕ

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2/127 ABB | Catalog Electronic Products and Relays 2015 | 2CDC 110 004 C0210                                                                                                    Switching current [A]
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