Breaking capacity is 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V — these are the maximum fault currents the breaker can safely interrupt at each voltage level, so for a 480 V panel the relevant figure is the 415 V or 440 V rating depending on the actual line-to-line voltage.
Above that it derates: 153.6 A at 55 °C, 150.4 A at 60 °C, 147.2 A at 65 °C, and 144 A at 70 °C.
The 70 mm depth is shallow enough for most 200 mm deep enclosures without crowding the gland plate; the 76.2 mm width (roughly 3 inches) fits a standard 3-pole MCCB footprint on a DIN rail or direct-mount backplate. Front protection is IP40 — splash-proof from the front but not sealed against hose-down. Suitable for indoor panel mounting; not for washdown zones without an additional enclosure.