The Siemens 6SL3211-0AB21-1UB1 is a SINAMICS G110-CPM110 AC Drive, marked as a spare part, running on unfiltered 200-240 V 1 AC input at 47-63 Hz. It delivers 1.1 kW in both constant-torque (CT) and variable-torque (VT) modes, with a CT overload capability of 150% for 60 seconds — enough to handle a pump or conveyor start-up without tripping. The RS-485 interface speaks USS protocol, so it ties into a Siemens PLC or a simple HMI panel without extra hardware. No BOP (basic operator panel) and no analog input on this variant, so you'll need a separate interface for local control or speed reference.
The drive measures 160 x 140 x 142 mm (HxWxD) with an IP20 degree of protection, so it's meant for a clean, dry electrical enclosure — no washdown, no outdoor exposure. Ambient temperature range is -10 to +50 °C, which covers most panel environments but watch the derating if you're packing multiple drives tight. Mount it on a DIN rail or a backplate; the 160 mm height fits standard 200 mm deep enclosures.