Panel fit and the AC-3 current that matters
The 3RA2210-1FE15-2BB4: This is a Siemens SIRIUS reversing starter — Size S00, which means it's the smallest frame in the SIRIUS feeder family and fits where panel depth is tight. The 24 V DC coil (rated value 24... 24 V) is common in modern PLC-driven panels where the control voltage is isolated from the line side.
Clearance and enclosure integration
The envelope is 204 mm high × 90 mm wide × 97 mm deep. For side-by-side mounting on DIN rail, you need 50 mm clearance upwards, 32 mm forwards, and 10 mm at the side and downwards — no backwards clearance required. That 97 mm depth is the critical dimension for shallow enclosures; it fits most 120 mm deep gland plates with room for wiring. Spring-loaded terminals on the main current circuit speed up wiring — strip, push, done. The operating temperature range is -20 to +60 °C, which covers most indoor panel environments without derating.