The interrupting capacity drops as system voltage rises: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at both 500 V and 690 V. Thermal derating is minimal up to 50 °C — it holds 80 A flat. At 55 °C it drops to 78 A, at 65 °C to 75 A, and at 70 °C to 74 A.
Width is 76.2 mm (3 in), depth is 70 mm (2.76 in), height is 130 mm (5.12 in). That 3-inch width per pole is standard for SENTRON 3VA MCCBs — it occupies three 1-inch spaces on the DIN rail or the mounting plate. The breaker accepts both front-connection and rear-connection lug kits (not included), and the TM210 trip unit is field-interchangeable if you need to change the rating plug later.