At 3 kW (7.7 A rated, 15.4 A overload), the 6SL3520-0XA23-0AA0 fits into the convection-cooled FSB envelope at 425 × 180 × 134 mm — the same width and height as the entire FSB/FSC family, but without the fan depth. For conveyor OEMs, this means one drilling pattern (410 × 168 mm, 4× M5 bolts) covers every G115D from 2.2 kW to 7.5 kW.

Why does the unified FSB/FSC mounting footprint matter for machine builders?

Every G115D from FSB (2.2 kW) through FSC (7.5 kW) shares the same 410 × 168 mm mounting hole pattern. A machine builder can design one conveyor frame that accepts any drive in the 2.2–7.5 kW range — the only difference is depth (134 mm convection vs. 169 mm fan-cooled). Spare drives, retrofit upgrades, and power-level changes during machine revision are a bolt-on swap. The 3 kW convection-cooled FSB at 125.8 W power loss runs without fan maintenance — no filter mats to clean, no fan bearings to replace.

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 C2 RFI filter meets EN 61800-3 Category C2 conducted emission limits for industrial environments.