The Siemens 6SL3520-1XB40-5AF0 is the smallest power rating in the 1XB4x sub-series of the SINAMICS G115D wall-mounted distributed drive family — 0.55 kW (0.75 hp) with PROFINET/EtherNet/IP in the compact FSA frame (380 × 156 × 129 mm). With 1.7 A rated output (High Overload), 380–480 V 3-phase supply, B-connector, and integrated PROFIsafe SIL 2 safety, it is the entry point to PROFINET in the 1XB4x catalog path — from here, the same B-connector ecosystem scales continuously to 4 kW.

Why PROFINET at the absolute smallest 1XB4x?

At 0.55 kW, this drive serves the lightest conveyor sections — mini belt turns, singulation gates, small diverters. Integrating these into the PROFINET network creates a unified engineering environment where every section, regardless of size, appears in TIA Portal with the same parameter structure and diagnostic access. PROFIsafe on the bus cable eliminates separate safety wiring even for the smallest section. The marginal cost of PROFINET at 0.55 kW is the smallest in the G115D range.

What motor types are supported?

The drive delivers 1.7 A rated output current with 200% overload — 3.4 A for 3 seconds. Supports IE3 asynchronous motors, IE4 synchronous reluctance motors, and SIMOGEAR geared motor combinations up to 0.55 kW. Control modes: V/f (0–550 Hz), V/f with FCC, sensorless vector control (0–240 Hz). Pulse frequency: 4–16 kHz. Integrated 180 V DC brake control. The integrated 2-port PROFINET switch supports daisy-chain line topology.

Frequently Asked Questions

How does the 1XB40-5AF0 compare to the 0XD00-5AF0?

Both are 0.55 kW FSA PROFINET variants. The 1XB40 uses the B-connector; the 0XD00 uses the D-connector. Electrically identical — same 1.7 A rated, same PROFINET stack, same PROFIsafe. Choose based on which connector matches your cable inventory. The 1XB40 has the advantage of scaling within the same connector family to 4 kW FSB via 1XB42/43/44; the 0XD is FSA-only.

Is 0.55 kW sufficient for industrial conveyor duty?

Yes — for the right application. A 0.55 kW motor can drive a small belt section, diverter wheel, or singulation gate handling lightweight packages in e-commerce or pharmaceutical material handling. If the section starts under load or handles variable package weights, the 0.75 kW (2.2 A) variant provides additional headroom in the same FSA footprint.

Is an external braking resistor required?

The integrated 180 V DC brake chopper is sufficient for all 0.55 kW conveyor applications. An external braking resistor is not required at this power level for typical duty.