The 6SL3520-2XD03-0AF0 is a 3 kW SINAMICS G115D distributed drive built for motors mounted directly on the machine - not in a cabinet. Rated 15.4 A at 3AC 380-480 V, it carries IP65/IP66 and UL Type 4X protection, so it lives where the process is: washdown areas, conveyor frames, material-handling stations.

The differentiator in this PN is the F suffix: PROFINET plus EtherNet/IP with PROFIsafe. That means safe torque off (STO, SIL 2 / PL d) travels over the same network cable as the control word - the drive exposes a PROFIsafe F-address, and you get STO without running a separate hardwired safety circuit back to the cabinet. On a SIMATIC line where the PLC already speaks PROFINET, this is the cleanest way to add a 3 kW axis with integrated safety.

When do you actually need PROFIsafe instead of a hardwired F-DI?

If the motor sits far from the control cabinet, or you are adding several axes and do not want a safety relay per drive, networked STO pays for itself in wiring. If the axis is right next to the panel and you only need one, the Local I/O (0AB0) or AS-Interface (0AA0) variants of the same 2XD03 keep it simpler. The 0AF0 earns its place when safety integration and remote commissioning matter more than the lowest parts count.

Mechanically it is the FSB frame (425 x 180 x 134 mm), fanless natural convection up to this power, with an integrated C2 EMC filter and brake chopper. Mount it on the machine, daisy-chain the PROFINET connection, and it is a SIMATIC-native 3 kW node.