The 6SL3520-0XH20-3AF0 is the 0.37 kW AS-Interface G115D in the FSA frame — the smallest G115D variant with two-wire bus communication. It delivers 1.3 A rated (2.6 A overload) from a 380–480 V 3-phase supply, connecting to the plant AS-i network with a single yellow cable for the lightest-duty conveyor zones.

AS-Interface on the smallest G115D — why it makes sense

At 0.37 kW, this drive controls the lightest conveyor segments — zone rollers under 1 m width, divert wheels, small belt conveyors carrying individual packages. The AF0 AS-Interface variant connects to the AS-i bus with two conductors, receiving speed setpoints and start/stop/direction commands while returning current draw, temperature, and fault status to the PLC. The AS-i cable does not carry motor power — the 380–480 V 3-phase supply is a separate circuit. For plants already standardized on AS-Interface with installed AS-i masters and yellow-cable infrastructure, the 0.37 kW AF0 eliminates the need for a PROFINET switch port or discrete I/O wiring at the drive — the drive participates in the existing AS-i segment as an addressed slave, polled for status alongside other AS-i devices on the bus.

FSA frame at 0.37 kW — smallest, lightest, fanless

The FSA enclosure (380 × 216 × 129 mm, 4.9 kg) is the most compact G115D frame — natural convection cooling, no fan, IP65 sealing. At 0.37 kW, the FSA operates far below its 1.5 kW thermal ceiling, with substantial headroom for high ambient temperatures or enclosure mounting with restricted airflow. The 24 V DC control supply draws approximately 250 mA. The drive mounts directly on the machine frame or motor flange — eliminating control cabinet space and reducing motor cable length for the smallest conveyor zones.

XH20-3: current catalog designation for 0.37 kW FSA

XH20-3 is the current catalog code for the 0.37 kW FSA in the 0XH series. It is available in I/O Control (AA0) and AS-Interface (AF0) variants. For PROFINET at 0.37 kW, see the 1XA series (1XA00-3AB0) — the smallest PROFINET-ready G115D.

Frequently Asked Questions

Does the AS-Interface variant support safety functions?

Yes — STO (Safe Torque Off) is implemented via a fail-safe digital input (F-DI) in addition to the AS-i bus cable. For integrated safety over Ethernet (PROFIsafe), select the PROFINET AB0 variant (1XA00-3AB0 in the 1XA series).

Can multiple 0.37 kW AF0 drives share an AS-i segment?

Yes. AS-Interface supports up to 62 standard slaves per segment. Multiple G115D AF0 drives at different power ratings can coexist on the same bus, each addressed individually.

What motor does this pair with?

The G115D is designed for direct mounting to SIMOGEAR 2KJ8 geared motors in IE3 (asynchronous) or IE4 (synchronous reluctance) efficiency classes. Select the motor gear ratio to match your conveyor speed and torque requirements.