The 6SL3520-2XB05-5AF0 is a 5.5 kW SINAMICS G115D FSC drive combining PROFINET networking with the B-connector system. The AF0 suffix delivers PROFINET IO, PROFIsafe, and EtherNet/IP through dual M12 D-coded ports with an integrated 2-port switch — daisy-chain wiring without external switches, MRP ring redundancy, and STO over the same PROFINET cable. The B-connector (Q4/2+7/8 in.) provides the mechanical power interface, suited for conveyor sections where both network integration and connector robustness matter.

How does the 5.5 kW FSC fit between 4 kW FSB and 7.5 kW FSC?

The 5.5 kW FSC shares the same 425 × 180 × 169 mm enclosure as the 4 kW fan-cooled FSB and 7.5 kW FSC, but carries a power stage rated for 13.2 A HO — 30% more current than the 4 kW FSB (10.2 A) and 45% less than the 7.5 kW FSC (19 A). For conveyor zones that exceed 4 kW but do not need the full 7.5 kW, the 5.5 kW FSC provides the right power match without oversizing the drive.