The Siemens 6SL3520-0XC02-2AB0 is the 2.2 kW standard I/O variant of the SINAMICS G115D wall-mounted distributed drive family in the 0XC connector configuration. At 5.9 A rated output (High Overload) with 11.8 A overload capability, it occupies the key FSA-to-FSB transition point: the FSA frame (380 × 156 mm) reaches its passive cooling limit at 1.5 kW — from 2.2 kW upward, the larger FSB enclosure (425 × 180 × 134 mm, fanless) is required to provide sufficient surface area for natural convection heat dissipation.

Why the FSA→FSB transition matters

The frame size jump from FSA to FSB changes the mounting footprint: width increases from 380 to 425 mm, height from 156 to 180 mm, depth from 129 to 134 mm, and weight from ~5.5 kg to ~7.1 kg. This matters when replacing an existing 1.5 kW FSA drive with a 2.2 kW unit — the mounting hole pattern changes, and more wall space must be allocated. Within the FSB fanless family (2.2 and 3 kW), the enclosure is identical — upgrading from 2.2 to 3 kW later requires no mechanical rework. The 0XC connector designation (position 10 = C) is the 9th confirmed G115D product code system and is functionally interchangeable with 0XD, 1XB, and other G115D connector variants at the same power level.

What motor types are supported?

The drive supports IE3 asynchronous motors, IE4 synchronous reluctance motors, and SIMOGEAR geared motor combinations up to 2.2 kW. Control modes: V/f, V/f with FCC, sensorless vector control. Output frequency: 0–550 Hz (V/f), 0–240 Hz (vector). Overload: 200% (11.8 A) for 3 seconds. Integrated 180 V DC brake control. FSB fanless: IP66 / UL Type 4X, natural convection, silent operation.

Frequently Asked Questions

Can I replace a 1.5 kW FSA drive with this 2.2 kW FSB unit?

Electrically yes, mechanically no — the mounting hole pattern differs between FSA and FSB frames. If you are upgrading a conveyor section from 1.5 kW to 2.2 kW and the existing drive is FSA, you will need to modify the mounting bracket or wall plate to accommodate the larger FSB footprint (425 × 180 mm vs 380 × 156 mm). The electrical connections are the same voltage and phase configuration; the higher current rating (5.9 A vs 4.1 A) may require verifying upstream circuit protection sizing.

What is the difference between 0XC and 0XD at 2.2 kW?

Electrically identical — both deliver 5.9 A at 2.2 kW in the FSB fanless frame. The difference is the connector system (position 10 = C for 0XC, D for 0XD). Both share the same G115D hardware platform and can be mixed on the same conveyor line, provided each drive's field cable assembly matches its connector type.