At 2.2 kW (5.9 A rated, 11.8 A overload), the 6SL3520-1XE42-2AF0 is the entry point to the FSB frame — the first drive in the G115D range that requires the larger platform beyond the compact FSA. The step from 1.5 kW FSA to 2.2 kW FSB brings a larger heatsink area capable of dissipating 96 W of power loss through natural convection alone, with no fan to maintain.

What changes when you step from FSA to FSB at 2.2 kW?

The FSA frame (380 × 156 × 129 mm) handles up to 1.5 kW with 67 W power loss. At 2.2 kW and 96 W, the thermal math forces the transition to FSB (425 × 180 × 134 mm) — 45 mm wider, 24 mm taller, and with a substantially larger aluminum heatsink. The mounting hole pattern changes from 364.5 × 145 mm to 410 × 168 mm. However, the electrical interface is identical: same 3 AC 380–480 V input, same 0–550 Hz output, same PROFINET telegram. A conveyor OEM who designs for the FSB pattern at 2.2 kW can drop in any FSB or FSC drive up to 7.5 kW without re-drilling the machine frame. The 1XE gland-type entry and integrated C2 filter come standard — no options to add, no separate filter module to specify.

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. The 175 Ω integrated braking resistor supports dynamic braking. Integrated PROFINET and Ethernet IP interfaces connect directly to SIMATIC controllers. The built-in C2 RFI filter meets EN 61800-3 Category C2 conducted emission limits for industrial environments.