The Siemens 6SL3520-1XA60-5AF0 is the AS-Interface communication variant at 0.55 kW — the lowest 3-phase power rating in the SINAMICS G115D distributed drive family — carrying the 1XA60 catalog designation. At 1.7 A rated and 3.4 A overload, it extends the G115D range downward to the lightest conveyor zones where a 0.75 kW drive would be oversized — short belt segments under 2 m, low-friction roller beds, and pick-and-place transfer stations.

What is the 0.55 kW G115D used for?

The 0.55 kW rating fills the gap below 0.75 kW for the lightest conveyor sections. A 2-meter belt section with low-friction rollers and light product loading may only require 0.37–0.55 kW — the 0.75 kW drive would operate at partial load with lower efficiency. The 0.55 kW G115D matches the motor size more closely, improving power factor and reducing energy consumption. At this power level, the drive typically controls a single short zone — not a long accumulation section — so the number of drives on the line is highest and the per-drive cost sensitivity is greatest.

1XA60-5 vs XH20-5: same drive, different catalog codes

The 1XA60-5AF0 (1XA6x sub-series) is mechanically identical to the XH20-5AF0 (0XH series) and 1XA20-5AF0 (1XA2x sub-series). All three identify the same 0.55 kW FSA hardware with AS-Interface. The XH, 1XA0x, 1XA2x, and 1XA6x catalog designations are parallel procurement paths — same drive, same performance, different part numbers.