The Siemens 6SL3520-0XB42-2AF0 is the PROFINET/EtherNet/IP communication variant in the 0XB connector system of the SINAMICS G115D wall-mounted distributed drive family, rated at 2.2 kW — the FSA-to-FSB transition power — in the FSB fanless frame (425 × 180 × 134 mm, 7.12 kg). With 5.9 A rated output (High Overload), 380–480 V 3-phase supply, B-connector, and integrated PROFIsafe SIL 2 safety, it is the lowest-power 0XB FSB variant confirmed so far, marking the current lower bound of the 0XB system at 2.2 kW.

0XB at the FSB entry point

The 0XB code system now spans 2.2–7.5 kW across FSB fanless (2.2–3 kW), FSB fan-cooled (4 kW), and FSC (5.5–7.5 kW). The 0XB42 at 2.2 kW is the entry to FSB in the 0XB catalog path — parallel to 1XB42 (B-connector, "1X" prefix) and 0XC02 (C-connector, "0X" prefix). For a B-connector facility, this is the 2.2 kW PROFINET option in the 0XB catalog. Electrically identical to the 1XB42-2AF0.

What motor types are supported?

The drive delivers 5.9 A rated output current with 200% overload — 11.8 A for 3 seconds. Supports IE3 asynchronous motors, IE4 synchronous reluctance motors, and SIMOGEAR geared motor combinations up to 2.2 kW. Control modes: V/f (0–550 Hz), V/f with FCC, sensorless vector control (0–240 Hz). Integrated 180 V DC brake control. 2-port PROFINET switch.

Frequently Asked Questions

Is an external braking resistor required?

The integrated 180 V DC brake chopper handles an electromechanical motor brake directly. An external braking resistor (minimum 130 Ω for FSB) is only needed for high-inertia loads or frequent stops on decline sections.