The interrupting ratings tell you where it can go: 187 kA at 240 V, 121 kA at 415 V, 36 kA at 440 V, and 17 kA at 690 V. It's a current-production part, so you're not hunting surplus bins — this is the active catalog line.
Thermal curve and panel fit
The TM240 release holds 250 A straight up to 50 °C ambient, then starts a gentle derate: 243.3 A at 55 °C, 236.5 A at 60 °C, 229 A at 65 °C, and 223 A at 70 °C. The 105 mm width, 158 mm height, and 70 mm depth put it in the standard 3VA frame footprint. It'll bolt into a SENTRON panelboard or a DIN-rail adapter without re-drilling the backpan.
Auxiliary contacts and enclosure sealing
It ships with three HQ auxiliary switches — those are the high-reliability contacts for signaling the breaker position back to a PLC or a status lamp. Fine for a dry indoor MCC room; don't put it in a washdown zone without an enclosure over it.