What this reversing starter carries
The 3RA2210-1CE15-2AP0: It's a factory-assembled pair: the supplied contactor is a 3RT2015-2AP02 and the link module is 3RA2911-2AA00, so you're not piecing together a reversing pair from loose parts. For a fan or pump start, that's the right window; if you're driving a flywheel or a centrifuge, you'd want Class 20 or 30.
Mounting and wiring — what fits where
Mounts vertically on a 35 mm DIN rail with the screw-and-snap-on method, or can be screw-mounted to a backplate. The envelope is 204 mm high × 90 mm wide × 97 mm deep — that's the S00 footprint, so it fits the standard cutout for this size class. Clearance requirements: 50 mm above, 32 mm in front, 10 mm below, 10 mm at the sides; zero clearance behind the unit since it's DIN-rail mounted. Main circuit wiring uses spring-loaded terminals — push-in for solid or ferruled stranded wire. No screw torque to check, no re-torquing after thermal cycling. That saves time on the panel build and reduces the chance of a loose connection down the line.
No stock-holding claim here — this is an RFQ-gated part.