The interrupting ratings climb to 187 kA at 240 V, 121 kA at 415 V, and 75.6 kA at 440 V, so it handles high-fault-current panels without cascading upstream breakers. That 187 kA figure at 240 V is the one that matters for most North American distribution panels; the 121 kA at 415 V covers European 400 V grids. The TM240 overcurrent release is a thermal-magnetic type — fixed thermal curve, magnetic pickup set at 240 A (6x In), so it's a straightforward drop-in for standard feeder protection.
At 55 °C it drops to 38.4 A, then 37.6 A at 60 °C, 36.8 A at 65 °C, and 36 A at 70 °C.