Why does the G115D move to the FSB frame at 2.2 kW?

At 2.2 kW, heat dissipation from the power stage exceeds what the FSA enclosure (380 × 216 × 129 mm) can handle through natural convection alone. The FSB frame (425 × 180 × 134 mm) provides a larger heatsink — approximately 12% wider — enabling 5.9 A continuous output (11.8 A overload) without forced-air cooling. At 7.12 kg, the FSB 2.2 kW is about 28% heavier than FSA (5.54 kg), with the extra mass concentrated in the aluminum heatsink. This is the entry point to the FSB platform: all higher-power G115D wall-mounted ratings use FSB or FSC frames.

I/O Control (AA0) variant

The AA0 suffix designates the I/O Control variant: digital/analog I/O for start/stop, speed setpoint, and status feedback via terminal block. No fieldbus interface — suited for standalone conveyor sections controlled by hardwired signals from a PLC or relay logic. 24 V DC control supply consumption: approximately 250 mA (fanless FSB).

Wall-mounted SINAMICS G115D distributed drive for horizontal conveyor applications. IP65/IP66 enclosure — mount directly on the machine frame, no control cabinet required. 3AC 380–480 V ±10% supply, 0–550 Hz output, integrated EMC Category C2 filter. STO Safe Torque Off (SIL 2 / PL d) via F-DI terminal or PROFIsafe. Compatible with SIMOGEAR 2KJ8 geared motors (IE3 asynchronous or IE4 synchronous reluctance). 200% overload for 3 seconds, 150% for 57 seconds. Ambient –30°C to +40°C. FSB frame, 425 × 180 × 134 mm (W × H × D), 7.12 kg, natural convection cooling.