The 6SL3520-1XM03-0AF0 is the 3 kW, FSB-frame G115D in the 1XM variant with AF-suffix PROFINET communication — the highest-power G115D still cooled entirely by natural convection. Rated 7.7 A continuous (15.4 A peak at 200% for 3 seconds), it handles conveyor sections, transfer stations, and material handling equipment in PROFINET-based SIMATIC networks. The 1XM FSB enclosure (425 × 240 × 134 mm) is 35 mm shallower than the 4 kW variant — the 134 mm depth reflects the absence of a cooling fan, as natural convection is sufficient up to 3 kW.

The AF suffix equips the drive with dual-port PROFINET and EtherNet/IP — the drive appears as a node on the automation network with full telemetry, diagnostics, and parameter access via TIA Portal. This eliminates the discrete I/O wiring and gateway modules that base-variant (AA) or enhanced-I/O (AB) drives require for networked control. The fanless design is the defining trait of this power class: no fan means no moving parts to maintain, no fan noise on the machine frame, and no airflow-dependent mounting orientation restrictions — the drive dissipates heat passively through the FSB enclosure surface. Standard G115D features apply: integrated C2 EMC filter, internal braking chopper, STO SIL 2 via Profisafe, SAM web-server commissioning, and IP65/IP66 protection.