The SINAMICS G115D 6SL3520-1XA20-7AF0 is the 0.75 kW wall-mounted distributed frequency converter in FSA frame with AS-Interface communication — a compact, fanless drive in the SINAMICS G115D series 1XA20 catalog designation. Designed for the lightest conveyor zones — short roller beds, diverter gates, and transfer units — it delivers 2.2 A rated output current with 200% overload, driving IE3/IE4 motors via SIMOGEAR 2KJ8 direct mounting. The FSA enclosure (380 × 216 × 129 mm) uses natural convection cooling — silent, zero-maintenance, IP65-sealed. AS-Interface AF0 connects over the two-wire yellow cable; STO via F-DI.

What does the 1XA20 catalog code cover?

The 1XA20 designation in the 1XA series (6SL3520-1X…) covers 0.55–0.75 kW FSA, supporting AA0, AF0, and AB0 communication variants. It runs parallel to 1XA00, which covers 0.37–0.75 kW FSA in the same 1XA series. Both codes identify the same FSA hardware platform — the distinction is internal Siemens catalog structuring.

Frequently Asked Questions

Can I upgrade to PROFINET later?

No — the communication interface is hardware-determined. Replace with the AB0 variant for PROFINET.

Is 0.75 kW sufficient for a conveyor zone drive?

Yes — 0.75 kW covers the majority of short roller beds, belt sections under 5 meters, and diverter/transfer units in intralogistics. For longer or inclined conveyors, step up to 1.1–1.5 kW FSA or 2.2 kW FSB.