Circuit breaker 3VA4145-5ED34-3AA0 — 45 A, 35 kA @ 480 V, TM210, FTFM
The Siemens 3VA4145-5ED34-3AA0 is a 3-pole molded-case circuit breaker from the 3VA4 series, UL Frame 125, with a 35 kA interrupting capacity at 480 V AC (class M). It ships as a fixed thermal-magnetic unit (TM210) with fixed overload Ir=45 A and fixed short-circuit pickup Ii=10 x In. The FTFM designation indicates a line-protection trip curve suited for feeder or distribution duty — not motor-starting or high-inrush loads. Rated continuous current is 45 A, with the thermal element permanently set at that value. The magnetic instantaneous trip is fixed at 450 A (10 x 45 A). This is a panel-mount device; it integrates into Siemens 3VA4 switchboard or enclosed distribution assemblies, typically on a DIN-rail adapter or direct-mount base.
Lifecycle and compliance — active, made to order
RoHS compliance is confirmed effective 13 May 2019.