Page 262 - Motor protection and control Manual motor starters, contactors and overload relays
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3/188            ABB  MOTOR PROTECTION AND CONTROL

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          GF contactor range

          The compact and efficient way of DC switching





   03
           Easy installation
           GF contactors are designed for easy
           installation. Coil terminals and PLC
           control terminals are easily identified
           and accessed from the front of the
           contactor.
                                                                                             AF technology
                                                                                      GF contactors feature AF technology that
                                                                                        ensures controlled, distinct and   energy
                                                                                         efficient operation of the contactor.
                                                                                                 Only two coils to cover
                                                                                                    24 ... 60 V AC / DC
                                                                                                and 100 ... 250 V AC / DC.




           New IEC rating
           DC-PV3 and DC-PV4 are two new contac-                                     Bidirectional design
           tor utilization   categories introduced by                                   The GF’s two pole bidirectional design
           IEC in 2018.                                                                 allows it to break both plus and minus,
           Both are specifically tailored for PV solar                                     through the entire current range.
           applications. As a technical  pioneer, ABB                                       Each pole is rated for 750 V DC.
           offers the GF contactor as the first ever
           DC-PV3 rated contactor.




                                                  Up to 1050 A
                                                  1500 V DC-PV3

                                                  The new GF range of DC contactors
                                                  extends up to 1050 A for DC-PV3.


























                     Switching DC in PV Plants
                     Contactors are typically selected for applications that need automatic remote
                     control and switching. In a central PV inverter it can be necessary to switch the
                     DC side in order to disconnect PV strings for output optimization. Grid codes
                     sometime require a central PV inverter to be used for grid stabilization at night,
                     this requires all PV panels to be disconnected on the DC side.
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