At 0.37 kW (1.3 A rated, 2.6 A overload), the 6SL3520-0XA20-3AF0 is the entry point of the 0XA20 sub-series and the smallest drive in the 0XA2x catalog system. With 33.7 W power loss — the lowest in the entire G115D range — the FSA frame dissipates heat entirely through natural convection. No fan, no filter, no moving parts, zero scheduled maintenance.

What does the 0.37 kW drive actually control on a conveyor line?

The 0.37 kW rating drives short straight-run roller conveyor sections — typically 1–2 meter zones that simply transport product between the more mechanically demanding merge, divert, and accumulation zones. These are the most numerous zones on any distribution-center conveyor network: simple, repeatable, and numerous enough (often 40–60% of total zone count) that their aggregate power consumption and heat rejection dominate the facility's conveyor electrical load. The G115D wall-mounted architecture is particularly advantageous at this power level — a centralized VFD cabinet for 200 zones of 0.37 kW would require a massive enclosure, hundreds of shielded cable runs, and significant cabinet cooling. Two hundred wall-mounted 0XA20-3 drives distributed along the conveyor frame eliminate all of that: each drive is its own sealed, cooled, and networked unit.

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.