The Siemens 3VM9214-0KB05 is a broadened terminal cover designed for use with a plug-in socket accessory on a 4-pole 3VM12 circuit breaker. It's a straightforward accessory — the cover widens the terminal area to accommodate the plug-in socket, keeping finger-safe clearance around the breaker's line and load terminals. Group code P360, product group 5384. Lifecycle status is active per Siemens — this cover is still part of the current production portfolio. No end-of-life notification on record.
The cover mounts directly onto the 3VM12 molded-case circuit breaker's terminal face. It's a snap-on fit over the existing terminal screws before the plug-in socket is installed. Packaging dimensions are 187 x 167 x 75 mm — roughly the size of a small breaker itself, so factor that into panel gland-plate planning if you're ordering multiple covers for a multi-breaker lineup. Product class B means return is restricted — you'll need to coordinate with your Siemens channel partner if a return becomes necessary. Hold onto the original packaging; the single-piece quantity unit makes per-unit tracking straightforward for MRO stockrooms.
RoHS compliant since 01-10-14 — the cover meets the substance restrictions for new equipment placed on the EU market after that date. REACH Article 33 duty-to-inform applies per the current candidate list; Siemens publishes the specific SVHC information on request. Export classification is AL: N / ECCN: EAR99, so no special export licensing is required for most destinations.