The 6SL3520-1XB45-5AF0 is the entry point to FSC frame in the SINAMICS G115D range — 5.5 kW in the larger FSC enclosure (425 × 180 × 169 mm, 7.85 kg) with B-connector and integrated cooling fan. Rated for 13.2 A continuous output (HO) at 380–480 V three-phase, it bridges the gap between 4 kW FSB fan-cooled and 7.5 kW FSC — powering medium-duty conveyor systems, packaging lines, and material handling where FSB current capacity is insufficient.

How does FSC differ from fan-cooled FSB?

FSC and fan-cooled FSB share the same 425 × 180 × 169 mm enclosure footprint and integrated fan — mechanically they occupy identical space on the conveyor frame. The distinction is electrical: FSC delivers 13.2 A continuous at 5.5 kW (and 19 A at 7.5 kW), while FSB fan-cooled peaks at 10.2 A at 4 kW. FSC weighs 7.85 kg — only 330 g more than FSB fan-cooled at 7.52 kg. Both maintain IP65 sealing with the same B-connector cable system. The AF0 variant adds PROFINET IO, EtherNet/IP, and PROFIsafe with daisy-chain networking via the integrated 2-port switch.