The Siemens 3VA4135-4ED14-3AA0 is a 1-pole molded case circuit breaker from the 3VA4 series, built on a UL Frame 125 platform. It's rated 35 A continuous (In) with a fixed overload protection setting (Ir = 35 A) and a short-circuit release set at 10 × In (Ii = 350 A). The breaking capacity is 25 kA at 277 VAC, placing it in the 'S' (standard) interrupting class for this frame size.
This is a line-protection breaker with a TM210 thermal-magnetic trip unit — the thermal element handles overloads, the magnetic element clears short circuits. The FTFM designation means it's a fixed thermal, fixed magnetic unit with no field-adjustable trip settings. That locks the protection curve: you get 35 A overload and 350 A instantaneous magnetic trip, period. For a BOM freeze, that's one less variable to track.
RoHS compliance is confirmed since 13 May 2019. The REACH Article 33 declaration notes lead (CAS 7439-92-1) above the 0.1% threshold in the candidate list. Export control is straightforward: AL N / ECCN EAR99 — no special licensing required for cross-border trade.