Breaking capacity is 121 kA at 240 VAC, dropping to 75.6 kA at 415 VAC and 52.5 kA at 440 VAC; at 500 V and 690 V it holds 11.9 kA — enough for most industrial distribution panels fed by a transformer of moderate impedance.
The 50 A rating holds flat from 40 °C up to 50 °C ambient; above that it derates linearly to 45 A at 70 °C. Footprint is 101.6 mm wide by 130 mm tall by 70 mm deep — a standard 4-pole MCCB envelope that fits DIN-rail or screw-mounted backplates.
Rated insulation voltage is 800 V, operating range -25 °C to +70 °C, storage from -40 °C to +80 °C.
