At 3 kW (7.7 A rated, 15.4 A overload), the 6SL3520-1XE43-0AF0 is the mid-range workhorse of the 1XE series. The 7.7 A continuous output covers the most common conveyor motor size class — merge sections, accumulation zones, and incline belts in the 2.2–3 kW range all fall within its continuous rating without derating.

How does the 3 kW 1XE drive handle variable-load conveyor zones?

Merge and accumulation zones see rapidly changing load profiles — a roller bed that is empty one second and fully loaded the next. The G115D's sensorless vector control compensates for motor slip in real time, maintaining speed setpoint within ±0.5% as the load swings from near-zero to full rated torque. The 200% overload capability (3 seconds) covers the locked-rotor inrush when a heavily loaded section starts from standstill. With 125.8 W power loss handled by natural convection in the 425 × 180 × 134 mm FSB envelope, the drive needs no fan maintenance — no filter mats, no bearing replacements — even in dusty conveyor tunnel environments.

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.