At 0.55 kW (1.7 A rated, 3.4 A overload), the 6SL3520-1XE40-5AB0 slots between the 0.37 kW entry point and the 0.75 kW workhorse — covering light-duty roller conveyor zones where 0.37 kW is marginal but 0.75 kW overshoots the motor size. For an OEM building a multi-zone conveyor line with graduated motor sizing, the 0.55 kW FSA fills a genuine gap: same enclosure, same mounting, same hardwired I/O control as every other G115D on the line, just right-sized for the zone it serves.

Why does having 0.55 kW in the 1XE range matter?

A conveyor line with uniform product weight might use 0.37 kW drives on straight-run zones and 0.55 kW on curve or transfer zones where the mechanical load is 30–50% higher. By keeping both ratings in the same 1XE FSA platform — same 380 × 156 × 129 mm envelope, same 364.5 × 145 mm mounting pattern, same M12/Q4/Q8 connector entry — the OEM designs one mounting bracket and one cable-routing scheme for every zone under 1 kW. The 1XE configuration ensures that even this mid-FSA drive carries the full C2 filter and IP65/66 connector seal — not stripped-down features at the lower power tier.

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. With 37.6 W power loss, natural convection cooling is sufficient — no fan, no filter maintenance. The 350 Ω integrated braking resistor supports dynamic braking. Control signals are hardwired through M12 I/O terminals; this variant has no fieldbus communication. The built-in C2 RFI filter meets EN 61800-3 Category C2 conducted emission limits.