The Siemens 3VA4150-5ED34-3AA0 is a 3-pole molded case circuit breaker in the 3VA4 platform, built on a UL Frame 125 footprint. It carries a 35 kA interrupting rating at 480 V — breaking capacity class M — which means it can safely clear fault currents up to that level on a 480 VAC distribution bus without upstream devices needing to coordinate. The TM210 trip unit is set for line protection: thermal overload pickup Ir is permanently fixed at 50 A, and the magnetic short-circuit pickup Ii is fixed at 10 x In (500 A). This is a dedicated fixed-setting breaker, not field-adjustable, so the BOM line must match the 50 A overload spec exactly.
Sourcing and fit
Mounts in a standard panel enclosure on the DIN rail or direct-mount footprint shared by the 3VA4 family. The 35 kA @ 480 V SCCR gives headroom for most 480 V distribution panels without requiring a current-limiting upstream fuse. The fixed Ir at 50 A means the breaker is sized for a 50 A continuous load — verify the connected load current does not exceed that value. The packaging dimensions (472 x 396 x 213 mm) give an idea of the shipping carton size; the unit itself is a standard 3-pole MCCB form factor. Sourced to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time.