At 7.5 kW (19.0 A rated, 38 A overload), the 6SL3520-1XE07-5AF0 is the most powerful drive in the SINAMICS G115D wall-mounted range. With 245.5 W power loss, the FSC frame's integrated fan (540–580 mA at 24 V DC) is essential — natural convection alone cannot keep this power stage within thermal limits. This is the drive for the heaviest conveyor sections: main incline belts, pallet-handling transfers, and high-speed merge systems where the motor sees sustained near-full-load duty.

What heavy-duty conveyor applications does the 7.5 kW G115D serve?

The 19.0 A continuous output covers 7.5 kW 3 AC induction motors — the size class used on main trunk conveyors that feed dozens of downstream zones, pallet lifts, and high-throughput sortation infeeds. The 200% overload (38 A for 3 seconds) handles the locked-rotor inrush when a fully loaded pallet conveyor starts from standstill. The 88 Ω integrated braking resistor (20 W continuous, 200 W peak) provides the highest braking capacity in the G115D range — sized for the regenerative energy of a 7.5 kW motor decelerating a heavy load on a decline section. At this power level, the 1XE gland-type entry accommodates 6–10 mm² power conductors through an IP66 compression seal — no connector contact rating to verify, no mating plug current derating to account for.

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 FSC frame (425 × 180 × 169 mm) with integrated fan cooling and the 410 × 168 mm mounting pattern is shared with all FSB/FSC drives. 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.