The 6SL3520-1XL04-0AB0 delivers the same 4 kW, 10.2 A continuous / 20.4 A peak power stage as the 0AF0 in the 1XL-variant FSB frame (425 × 240 × 169 mm, 3-phase supply). The AB suffix provides enhanced communication capabilities with a specific I/O and communication mix for distributed automation networks — a configuration option alongside the AF-suffix PROFINET emphasis and the AA-suffix base functionality. This variant suits installations where the communication protocol is already determined by the network topology and the AB configuration's I/O profile matches the application's signal count.

FSB wall-mounted enclosure — IP65 (connectors) / IP66 (cable glands) / UL Type 4X Indoor — operates from −30 to +40 °C without derating. All G115D drives include an integrated C2 EMC filter, internal braking resistor, STO SIL 2 via Profisafe, and SAM web-server commissioning. IE2/IE3 asynchronous and IE4 synchronous reluctance motors are supported with V/f or vector control from 0–550 Hz, with 200% overload for 3 seconds for demanding start-up torque.