The Siemens 3VA4111-4ED34-3AA0 is a 3-pole molded-case circuit breaker in the 3VA4 UL Frame 125 series, rated for line protection with a TM210 thermal-magnetic trip unit. Its 25 kA interrupting capacity at 480 V AC (class S) means it can safely clear faults up to that level without cascading upstream — sized for commercial and industrial panelboards where the available fault current stays under that threshold. Overload protection is set at Ir = 110 A, permanently fixed — no field adjustment. Short-circuit protection trips at Ii = 10 × In (1100 A instantaneous). The FTFM designation indicates a fixed thermal, fixed magnetic trip, so the BOM spec is locked once ordered; no dial-twisting on install.
Integration & Panel Fit
UL Frame 125 footprint — mounts in standard panelboard or enclosure with 3-pole bus bar spacing. Packaging dimensions 472 × 396 × 213 mm. Product class C means this is manufactured to order, not a stocked shelf item; lead time and availability are confirmed at quote.