Page 167 - Motor_protection_and_control_Manual_motor_starters_ contactors
P. 167

AS09 ... AS16 and ASL09 ... ASL16  3-pole contactors

         Electrical durability





         Electrical durability for AC-3 utilization category - Ue ≤ 440 V - Ambient temperature ≤ 60 °C
         Switching cage motors: starting and switching off running motors. The breaking current Ic for AC-3 is equal to the rated opera-
         tional current Ie (Ie = motor full load current). Maximum electrical switching frequency: 1200 cycles / hour.


                   AS09, ASL09  AS16, ASL16
                      AS12, ASL12
         Millions of
         operating   10
         cycles
                                                                                                                    4
                 5


                 3 3      9
                          7
                          5
                          3
                 2    9   1
                      7
                      5
                      3
                      1
                 1

               0.5


               0.3
                                            1  3  5  7  9
               0.2
                   2     3   4  5         10        20
                                           Breaking current Ic (A)

         Example:
         Breaking current = 4 A.
         On the opposite curve at intersection " " 4 A the corresponding value for the electrical durability is approximately 3 millions
         operating cycles.


























                                                                                                                    1SBC101930S0201






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