Circuit breaker 3VA4125-6ED14-3AA0 — 25 A, 65 kA @ 277 V
The Siemens 3VA4125-6ED14-3AA0 is a 1-pole UL Frame 125 circuit breaker from the 3VA4 series, rated 25 A with a 65 kA interrupting capacity at 277 V. The TM210 thermal-magnetic trip unit provides line protection with overload protection Ir permanently set at 25 A and short-circuit protection Ii fixed at 12 x In (300 A). The 65 kA SCCR at 277 V means it safely interrupts high fault currents in a 277/480 V panel without cascading upstream — a key spec for service-entrance or feeder applications where available fault current is high. This part is classified as Product class C: manufactured/produced to order, which cannot be reused or returned against credit. That means each unit is built for a specific order — not a stocked shelf item. Plan your BOM freeze accordingly; once ordered, it is committed.
Lifecycle and compliance
RoHS compliance effective since 13-05-19. REACH Article 33 disclosure: contains Lead (CAS-No. 7439-92-1) above 0.1% w/w. Export control: AL N / ECCN EAR99 — no special licensing required for most destinations.
Sourcing and integration
Packaged singly, dimensions 472 x 396 x 213 mm. The 3VA4 frame mounts on a DIN rail or panel-mount adapter in a standard distribution board. For a 277/480 V panel, the 65 kA rating at 277 V gives ample headroom for most commercial and light industrial service-entrance applications. Verify the available fault current at the point of installation — this breaker's SCCR covers the high end of typical North American panelboards.