Breaking capacity hits 121 kA at 240 V, dropping to 75.6 kA at 415 V and 52.5 kA at 440 V — numbers that tell you this unit handles high-fault utility feeds or transformer secondaries without cascading upstream. Current rating holds flat at 50 A from 40 °C through 50 °C ambient, then derates to 48 A at 55 °C and 45 A at 70 °C. That means in a hot enclosure — say a non-ventilated panel near a furnace line — you don't lose headroom until past 50 °C, which is better than many MCCBs that start derating at 40 °C.
Dimensions are 101.6 mm wide by 130 mm tall by 70 mm deep — a 4-pole MCCB that fits the standard SENTRON mounting footprint. Front IP40 protection means it's fine inside a closed panel but not for washdown environments. No trip indicator on the front face, so fault diagnostics rely on the auxiliary switch feedback or a visual check of the handle position.