The Siemens 3VA4125-6ED24-3AA0 is a 2-pole molded case circuit breaker from the 3VA4 series, built on a UL Frame 125 platform. It is rated for line protection with a TM210 thermal-magnetic trip unit, set at a fixed overload Ir of 25 A and a fixed short-circuit pickup Ii of 12 × In (300 A). The breaking capacity is 65 kA at 480 V (class H), which means it can safely interrupt fault currents up to that level on a 480 VAC system without upstream devices needing to clear the fault — a key spec for panel SCCR coordination. This is a 2-pole configuration, so it switches both ungrounded conductors in a single-phase or split-phase circuit. The FTFM designation indicates fixed thermal and fixed magnetic settings — no field adjustment of the trip thresholds.
RoHS compliance is confirmed since 13 May 2019. REACH Article 33 disclosure notes Lead (CAS 7439-92-1) above 0.1% w/w in the candidate list. The packaging dimensions are 472 × 396 × 213 mm, single unit.