At 0.75 kW (2.2 A rated, 4.4 A overload), the 6SL3520-0XA20-7AF0 is the highest-power drive in the 0XA20 FSA sub-series and the most numerous G115D rating deployed in distribution-center conveyor networks. A single facility may run several hundred 0.75 kW zones, each with its own wall-mounted drive — the 0XA20 catalog code represents one of several parallel ordering paths to the same hardware.

Why does the 0.75 kW rating dominate conveyor drive counts?

The 0.75 kW motor is the standard building block of zone-roller conveyor systems. Each zone — typically a 3-meter roller bed with a geared motor driving the rollers via chain or belt — runs independently, starting and stopping based on product presence sensors. The distributed drive architecture places one G115D at each motor, eliminating the central VFD cabinet and the shielded cable runs it would require for hundreds of zones. At 43.1 W power loss with natural convection, the 0.75 kW FSA is the second-most-efficient drive in the G115D range (after the 0.37 kW at 33.7 W). Multiplied by 300 drives, the aggregate heat rejection into the building is under 13 kW — manageable by standard HVAC without supplementary cooling at the drive cabinets, because there are no drive cabinets.

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 350 Ω integrated braking resistor (10 W continuous) 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.