The Siemens 3VA4112-4ED14-3AA0 is a 1-pole circuit breaker from the 3VA4 series, built on a UL Frame 125 platform. It's rated for 125 A continuous (In) with a fixed overload setting (Ir=125 A) and a short-circuit trip threshold of 10× In (Ii=10 x In). The TM210 trip unit is a thermal-magnetic design: the thermal element handles overloads (Ir fixed at 125 A), and the magnetic element provides instantaneous short-circuit protection at 10 x In.
This part carries an active lifecycle status. It's classified as Product class C — manufactured or produced to order, which means it's not a stocked shelf item.
RoHS compliant since 13-05-19. The manufacturer provides RoHS and REACH declarations on request; no separate UL or IEC certification numbers are listed in the evidence, but the UL Frame designation implies UL 489 listing.
Integration Notes
Mounts in standard panelboard or loadcenter bus stacks accepting UL Frame 125 plug-on or bolt-on breakers. The 1-pole form factor occupies one 1-inch pole space. Packaging dimensions are 472 × 396 × 213 mm — a single-piece box, not bulk.