It's rated 100 A continuous at 40 °C ambient and carries a massive 187 kA breaking capacity at 240 V AC, tapering to 121 kA at 415 V and 75.6 kA at 440 V — enough to handle high-fault utility feeds without cascading upstream. The breaker ships with a factory-fitted shunt trip (STL) release and two HQ auxiliary switches, so it's ready for remote tripping and status feedback out of the box — no separate accessory kit to order.
The 100 A rating holds flat from 40 °C to 50 °C, then derates to 98 A at 55 °C, 96 A at 60 °C, 94 A at 65 °C, and 91 A at 70 °C. Footprint is 76.2 mm wide (3 in), 130 mm tall, 70 mm deep — a standard 3-pole MCCB slot on most DIN-rail or panel-mount assemblies. The shunt trip means you can wire an E-stop or PLC output directly to the breaker for remote opening; the two auxiliary switches give you both NO and NC status contacts for the control system.