At 240 V it interrupts 220 kA — that's high enough for most secondary substations and large motor control centers. At 415 V it's still 154 kA, and at 440 V it's 121 kA. Those numbers drop sharply at 500 V and 690 V to 17 kA, so if your system voltage sits above 480 V, verify the available fault current at the panel — this breaker may not be the right fit for high-impedance grounded 690 V systems with low fault current, but it's fine for standard 480 V gear. Thermal derating matters for panel ambient temperature. At 55 °C it derates to 98 A, at 60 °C to 96 A, at 65 °C to 94 A, and at 70 °C to 91 A.
That 70 mm depth is relatively shallow for a 100 A 4-pole MCCB — it fits in standard 200 mm deep enclosures without forcing a deeper can. Width is the critical dimension for multi-breaker lineup spacing; 101.6 mm (4 inches) is the standard for this frame size. The breaker accepts an optional motor drive for remote operation, and the adjustable magnetic trip range goes up to 1000 A (li max).