That kind of SCCR headroom makes it a fit for high-fault industrial services where a standard MCB would vaporize.
Above that it starts to step down: 49 A at 55 °C, 48 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C.
The breaker measures 70 mm deep, 50.8 mm wide (2 inches), and 130 mm high. That 2-pole width is standard for a 50 A MCCB — it fits a typical DIN-rail or panel-mount footprint without surprises. The 70 mm depth means it clears most shallow enclosures, but check your gland plate clearance if you're retrofitting into a tight box.