The Siemens 6SL3520-1XB05-5AF0 is the PROFINET/EtherNet/IP communication variant at 5.5 kW in the SINAMICS G115D wall-mounted distributed drive family — the first 1XB connector variant to enter the FSC frame (425 × 180 × 169 mm, 7.85 kg). With 13.2 A rated output (High Overload), 380–480 V 3-phase supply, B-connector, and integrated PROFIsafe SIL 2 safety, it serves heavy conveyor sections — pallet conveyors, high-capacity merge lines, and large incline belts — with full networked drive functionality on the B-connector ecosystem.

What does the FSC frame mean for 1XB?

The FSC frame shares the same mechanical footprint as FSB fan-cooled (425 × 180 × 169 mm) but uses higher-rated power semiconductors to deliver 5.5–7.5 kW. The 1XB05 and 1XB07 are the first B-connector variants in the FSC power class, extending the 1XB family's reach from 0.37 kW FSA to 7.5 kW FSC — a single connector ecosystem across the entire G115D wall-mounted power range. For a facility standardizing on B-connector cable sets, this means every drive on the conveyor line — from a 0.37 kW singulation gate to a 7.5 kW trunk conveyor — shares the same connector type, cable inventory, and assembly procedure.

What motor types are supported?

The drive delivers 13.2 A rated output current with 200% overload — 26.4 A for 3 seconds. Supports IE3 asynchronous motors, IE4 synchronous reluctance motors, and SIMOGEAR geared motor combinations up to 5.5 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 and MRP ring redundancy. 24 V DC control supply consumption: approximately 550 mA at full fan speed.

Frequently Asked Questions

How does the 1XB05 compare to the XH25 or 1XA05 at 5.5 kW?

Electrically identical — same 13.2 A rated / 26.4 A overload, same FSC frame, same PROFINET stack with PROFIsafe. The difference is the connector: 1XB05 uses B-type. Choose based on your facility's cable standard. For B-connector facilities, the 1XB05 is the 5.5 kW PROFINET option alongside the 1XB07 at 7.5 kW.

Is an external braking resistor required?

At 5.5 kW, an external braking resistor is recommended for decline conveyors, high-inertia loads, and frequent emergency stops. The internal 180 V DC brake chopper handles the motor brake under moderate conditions, but regenerative energy at this power level benefits from external resistor capacity. Consult the SINAMICS G115D operating instructions for sizing.