The SINAMICS G115D 6SL3520-2XA23-0AA0 is a 3 kW wall-mounted distributed drive in the FSB frame with basic I/O (AA0 suffix). It is the highest-power fanless variant in the G115D 2XA sub-series — natural convection cooling keeps the enclosure depth at a compact 134 mm with no fan, no moving parts, and no acoustic noise. IP65/IP66 protection enables direct machine-mounted installation on horizontal conveyor sections.

How does the AA0 compare to the AF0 at 3 kW?

Both the AA0 and AF0 share the same 3 kW power rating, FSB fanless frame (425 × 180 × 134 mm), IP65/IP66 protection, integrated C2 EMC filter, and braking chopper. The AA0 provides basic digital and analog I/O — sufficient for simple conveyor zones where the drive receives start/stop commands and a speed reference from a local controller or hardwired signals. The AF0 upgrades to PROFINET with PROFIsafe, which is the better choice when the drive must communicate over an industrial Ethernet network with integrated functional safety.

Why choose a fanless drive for conveyor duty?

Fanless operation via natural convection offers three practical advantages in conveyor environments: no fan bearing to wear out over years of continuous operation, no airflow to draw dust or debris into the enclosure (IP65 keeps contaminants out, but fanless eliminates the mechanism entirely), and silent operation in noise-sensitive areas such as packaging halls or warehouse picking zones. At 3 kW with 7.7 A HO rated output, the fanless FSB frame covers the majority of horizontal conveyor motor requirements without the maintenance considerations of a fan-cooled drive.