The SINAMICS G115D 6SL3520-2XA61-1AA0 is a 1.1 kW wall-mounted distributed drive with basic I/O control — the most economical interface option in the G115D range. Rated at 3.1 A HO with 6.2 A peak (200% for 3 s) from 380–480 V 3 AC, it fits the FSA frame (380 × 156 × 129 mm) with natural convection cooling. Integrated Category C2 EMC filter and braking chopper are standard. IP65/IP66 rated for direct machine mounting.

When is the AA0 I/O-only variant the right choice?

The AA0 configuration is the entry-level control interface: digital inputs and one fail-safe digital input (F-DI) for STO, without PROFINET or EtherNet/IP. This suits simple conveyor sections where the drive receives run/stop and speed commands from discrete PLC outputs — no network configuration needed. The trade-off is reduced diagnostic visibility compared to PROFINET variants (AF0): no remote parameter access, no automatic fault logging over the network. All AA0, AB0, and AF0 variants share the identical power stage, frame, and motor compatibility — the suffix only changes the control interface.