The Siemens 6SL3520-1XB40-3AB0 is the standard I/O variant at the absolute lowest power rating in the SINAMICS G115D wall-mounted distributed drive family — 0.37 kW in the compact FSA frame (380 × 156 × 129 mm). With 1.3 A rated output (High Overload), 380–480 V 3-phase supply, and B-connector, it provides hardwired digital input control for the very lightest conveyor functions: singulation gates, mini diverters, reject stations. The AB0 suffix designates standard I/O with a distinct terminal configuration.

When is Standard I/O sufficient at 0.37 kW?

At 0.37 kW, the driven load is typically a single actuator-like function — a gate, a diverter, a pusher — where the operating profile is simple (open/close, on/off, two-speed) and hardwired digital inputs are the natural control interface. The AB0 variant eliminates the cost of a fieldbus node and network commissioning while delivering the full G115D motor control suite. Commission via Mini-USB with TIA Portal Startdrive or SD card; once configured, only 24 V DC I/O and approximately 250 mA control supply are needed for operation.

What motor types are supported?

The drive delivers 1.3 A rated output current with 200% overload — 2.6 A for 3 seconds. Supports IE3 asynchronous motors, IE4 synchronous reluctance motors, and SIMOGEAR geared motor combinations up to 0.37 kW. Control modes: V/f (0–550 Hz), V/f with FCC, sensorless vector control (0–240 Hz). Integrated 180 V DC brake control. FSA frame: natural convection cooling, IP66 / UL Type 4X.

Frequently Asked Questions

Can this drive be upgraded to PROFINET later?

No. The communication interface is hardware-defined at order. If network integration is a future possibility, select the AF0 variant — the cost difference at 0.37 kW is minimal.

Is an external braking resistor required?

At 0.37 kW, the integrated 180 V DC brake chopper is more than sufficient. An external braking resistor is not required for any typical application at this power level.