At 1.1 kW (3.1 A rated, 6.2 A overload), the 6SL3520-1XE41-1AB0 occupies the sweet spot of the FSA power range — one step above the entry-level 0.75 kW, one step below the FSA ceiling at 1.5 kW. This is the most frequently deployed power rating on distribution-center roller conveyors, where individual zone motors rarely exceed 1.1 kW but the installed base counts in the hundreds per facility.

Why is 1.1 kW the workhorse rating for zone-roller conveyors?

A typical zone-roller conveyor section spans 3–5 meters, driven by a 0.75–1.1 kW geared motor through a roller chain or belt. The 1.1 kW rating provides margin over the 0.75 kW unit — handling heavier product weights, faster line speeds, or increased roller friction from debris accumulation without tripping on overload. With 53.6 W power loss dissipated by natural convection in the 380 × 156 × 129 mm FSA envelope, the drive runs silent and fanless — a meaningful advantage when hundreds of units operate simultaneously in a distribution center where noise levels and maintenance access are both regulated. The 1XE configuration brings IP66 gland sealing and C2 filtering as standard, not options.

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 for industrial environments.