Siemens 3VA1050-2ED42-0JA0 — SENTRON MCCB with Shunt Trip
Rated 50 A continuously at 40 °C, with minimal derating up to 70 °C (45 A), so it holds its rating across typical enclosure ambient temperatures without oversizing the frame. Breaking capacity reaches 52.5 kA at 240 V and 32 kA at 415 V, which covers most low-voltage fault levels in commercial and light industrial panels. The 7.5 kA rating at 690 V confirms it can handle 3-phase 690 V motor circuits where available fault current is moderate.
The breaker occupies a 101.6 mm wide, 130 mm tall, 70 mm deep footprint — a standard 4-pole MCCB form factor that fits most DIN-rail or panel-mount enclosures without re-drilling.