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4/50             ABB  MOTOR CONTROL AND PROTECTION FOR ROLLING STOCK APPLICATIONS

          —
          AF09(Z)B..RT ... AF38(Z)B..RT  4-pole contactors

          Technical data





          General technical data
          Contactor types                   AF09(Z)B..RT     AF16(Z)B..RT     AF26(Z)B..RT     AF38(Z)B..RT
          Rated insulation voltage Ui
           acc. to IEC 60947-4-1            690 V
           acc. to UL / CSA                 600 V
          Rated impulse withstand voltage Uimp.  6 kV
          Electromagnetic compatibility     Devices complying with IEC 60947-1 / EN 60947-1 - Environment A
                                            EN 50121-3-2
          Ambient air temperature
           Operation in free air            -40...+70 °C
           Storage                          -60...+80 °C
          Climatic withstand                Category B according to IEC 60947-1 Annex Q
          Maximum operating altitude (without derating)  3000 m
          Mechanical durability
           Number of operating cycles       10 millions operating cycles
           Maximum switching frequency      3600 cycles/h
          Shock and vibration withstand
   04
          acc. to IEC 61373                 Category 1, class B
          Remark for 4-pole contactors fitted with 2 N.O. + 2 N.C. main poles

          1   R3  R5   7
                           These contactors are suitable for controlling 2 separate circuits, i.e. 2 loads with 2 separate supplies,
                           or 1 circuit comprising 2 separate loads with a single supply (see diagrams below). When the contactor
                           operates there is no mechanical overlapping between the N.O. poles and the N.C. poles: BREAK before MAKE.

          2   R4  R6    8

                   !
                        These contactors are not suitable for a reversing starter or for controlling a single load from 2 separate supplies.

                               B  l  o  c  k     d  i  a  g  r  a  m  s
                               – Single supply and 2 separate loads     – 2 separate supplies and 2 separate loads
                                                                            Main
                                        Supply                              supply
                                                                            Back-up
                                                                             supply
                                A1  1  R3  R5  7                    A1  1  R3  R5  7

                                A2  2  R4  R6  8                    A2  2  R4  R6  8
                                         Load                                Load
                                         Load                                Load























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