The Siemens 6SL3520-1XA60-3AF0 is the AS-Interface variant at the absolute lowest power rating in the SINAMICS G115D wall-mounted distributed drive family — 0.37 kW, 1.3 A rated, 2.6 A overload. It carries the 1XA60 catalog designation, the lowest-power code in the newly discovered 1XA6x sub-series. This is the smallest G115D drive available — the entry point to the wall-mounted distributed drive range, powering the very lightest conveyor sections: short roller beds, divert wheels, and single-belt transfer points.

What is the smallest G115D used for?

At 0.37 kW and 1.3 A rated, the 1XA60-3AF0 serves conveyor zones where the mechanical load is minimal — a 1–2 meter roller section with a fractional-horsepower gearmotor, a pneumatic divert wheel, or a low-speed belt segment handling light packages. These zones are often the most numerous on the line: a distribution center may have 200+ such sections. The 0.37 kW drive matches the motor size exactly, avoiding the efficiency penalty of a larger drive running at a fraction of its rated current. The FSA enclosure is dramatically oversized for the 0.37 kW power stage — thermal margin is effectively unlimited.

0.37 kW in the 1XA6x sub-series: only AS-Interface confirmed

In this batch, only the AF0 (AS-Interface) variant is confirmed at 1XA60-3. The AB0 (PROFINET) and AA0 (I/O Control) variants at 0.37 kW exist in other G115D catalog designations — they are available as XH00-3AB0 (0XH series) and 1XA00-3AA0/AB0 (1XA0x sub-series). Whether Siemens offers the 1XA6x sub-series at 0.37 kW with AB0 and AA0 communication is not yet confirmed; they may exist under different part numbers not in this batch. For applications requiring PROFINET or I/O Control at 0.37 kW, the XH00 or 1XA00 sub-series provide confirmed alternatives.

AS-Interface at the smallest scale: one cable, zero configuration

The AF0 variant connects to the AS-Interface yellow flat cable with an insulation-displacement connector — pierce the cable, tighten the cover, and the drive has both communication and 30 V auxiliary power. At 0.37 kW, where the drive may control a 1-meter roller bed in a remote corner of the conveyor system, the elimination of separate power supplies and network terminations at each node is especially valuable — there are more of these drives than any other, and the per-node simplicity compounds.