The SINAMICS G115D 6SL3520-0XH01-1AB0 is the 1.1 kW wall-mounted distributed drive in FSA frame — the mid-point of the fanless SINAMICS G115D series FSA range. Rated at 3.1 A output current with 200% overload capability for 3 seconds, it sits between the 0.75 kW (2.2 A) and 1.5 kW (4.1 A) FSA variants — the most popular power tier for individual zone roller sections and short belt conveyors in packaging and intralogistics. Fanless natural convection cooling through the IP65-sealed aluminum housing means no fan maintenance and silent operation. PROFINET with PROFIsafe enables Safe Torque Off over Ethernet without dedicated safety wiring.

When to choose 1.1 kW over adjacent FSA ratings

The 0.75 kW FSA covers the lightest conveyor sections — individual zone rollers up to roughly 2–3 meters, small transfer belts, and divert arms. At 1.1 kW, the drive handles longer roller beds (3–5 meters), wider belts carrying moderate product weight, or accumulation zones where multiple packages may stop on the same section. The 1.5 kW FSA adds headroom for the longest FSA-class conveyor sections or where product weight pushes close to the 1.1 kW continuous rating. All three share the same FSA frame, mounting pattern, motor connector, and fanless cooling — the decision is purely a question of mechanical load.

Motor compatibility and installation

Direct mounting to SIMOGEAR 2KJ8 geared motors in IE3 or IE4 efficiency classes, with integrated 400 V AC brake control. Encoderless vector control supports V/f and sensorless modes. Dual-protocol PROFINET and EtherNet/IP on the same interface accommodates mixed-vendor PLC environments. The FSA frame at 380 × 216 × 129 mm fits in confined conveyor frame spaces.