What the interrupting ratings mean for your fault-current study
Its interrupting capacity varies sharply with system voltage: 187 kA at 240 V AC, 121 kA at 415 V AC, 36 kA at 440 V AC, and 17 kA at 690 V AC. At 415 V, the 121 kA rating still covers most distribution boards fed by a 2 MVA-class transformer; the drop to 36 kA at 440 V reflects the physics of arc extinction at higher voltage, so verify your available fault current at the actual line voltage, not the nominal.
Thermal derating and panel fill factor
Above that, it derates linearly: 243.3 A at 55 °C, 236.5 A at 60 °C, 229 A at 65 °C, and 223 A at 70 °C.
Auxiliary contacts and release options
The overcurrent release is the TM240 thermal-magnetic type, which means it uses a bimetal for overload protection and a solenoid for short-circuit response — no electronic adjustment, but also no auxiliary power draw and no nuisance tripping from harmonics.