The SINAMICS G115D is a distributed wall-mounted drive series for horizontal conveyor applications. The 6SL3520-0XA62-2AF0 delivers 2.2 kW at 5.9 A rated output (11.8 A overload) in the FSB frame. This is the entry-level FSB power rating — the transition point from the compact FSA frame to the larger FSB platform with increased passive cooling area.

Why does the G115D switch from FSA to FSB at 2.2 kW?

The FSA frame (380 × 156 × 129 mm) provides sufficient natural convection cooling for motors up to 1.5 kW. At 2.2 kW, heat dissipation requirements exceed what the FSA enclosure can handle passively. The FSB frame offers a larger heatsink surface while maintaining fanless operation — no moving parts, no filter maintenance, and the same IP65/66 protection. An integrated 175 Ω braking resistor supports dynamic braking for frequent start-stop conveyor cycles.

Key specifications

The drive operates from a 3 AC 380–480 V supply (45–66 Hz) with an output frequency range of 0–550 Hz. High-overload capability delivers 200% for 3 seconds and 150% for 57 seconds. Integrated PROFINET and Ethernet IP interfaces connect directly to SIMATIC controllers. The built-in RFI filter meets Category C2 requirements.