The Siemens 3VA4170-4ED14-3AA0 is a 1-pole circuit breaker from the 3VA4 series, built on a UL Frame 125 platform. It's rated 70 A continuous with a 25 kA interrupting capacity at 277 VAC — that's the S breaking capacity class, meaning it clears faults up to 25 kA without welding its contacts or cascading damage upstream. The TM210 thermal-magnetic trip unit gives you fixed overload protection at Ir = 70 A and a short-circuit pickup at Ii = 10 × In (700 A), so it's a straight swap-in for a dedicated 70 A feeder or branch circuit where you don't need adjustable trip settings.
Mounts in a standard panelboard or enclosure on the UL Frame 125 footprint — same physical envelope as other 3VA4 1-pole units in that frame. The 472 × 396 × 213 mm shipping box is for a single piece; the breaker itself is DIN-rail mountable. Export controls are AL N / ECCN EAR99, so no ITAR restrictions on cross-border shipment.