Drive identity and fit
The Siemens 6SL3521-1XH60-3AF0 is a SINAMICS G115D AC drive, classified under Power Supply Systems / Power Supplies. This is the drive unit itself — not a separate power supply module — so it carries the full VFD function: rectifier, DC link, and inverter in one chassis. Weight comes in at 3.82 kgs, which tells you this is a compact cabinet-mount unit, not a wall-mount micro drive.
Lifecycle stage is marked mature.
What the weight tells the MRO planner
At 3.82 kgs, this drive is a compact cabinet-mount unit. Plan for a two-person lift if rack-mounting above shoulder height.