The TM240 designation means the thermal trip is fixed at 240 A frame rating, with the magnetic pickup set to the standard band — this is a line-protection device, not a motor-protection piece, so it's sized for feeder or distribution duty where you need short-circuit and overload protection on a cable or bus. At 240 V it's rated 220 kA; at 415 V it's 154 kA; at 440 V it's 121 kA; at 690 V it's 17 kA. At 55 °C it derates to 48 A, at 60 °C to 47 A, at 65 °C to 46 A, and at 70 °C to 45 A.
Auxiliary contacts and trip indication
The trip alarm switch changes state only when the breaker trips on fault — not on manual open — so you can wire it to a PLC input or alarm beacon to distinguish a deliberate shutdown from a fault event. That's useful for remote monitoring or for a maintenance team that needs to know whether to look for a short or just a scheduled isolation.