The TM240 thermal-magnetic release handles the overload and short-circuit sensing; there's no electronic trip unit to program or power.
Breaking capacity at the voltages you actually see
This breaker's interrupting rating is voltage-dependent, and the numbers matter for selectivity coordination. At 240 V it clears 121 kA; at 415 V it's 75.6 kA; at 440 V it drops to 25 kA; and at 690 V it's 11.9 kA. If your panel feeds a 480 V distribution bus, the 440 V figure (25 kA) is the one to compare against your available fault current — that's the limiting case for most North American commercial installations. The 690 V rating covers the European 400 V line-to-line with headroom.
Thermal derating and environment
At 55 °C it drops to 194 A, then 188 A at 60 °C, 182 A at 65 °C, and 176 A at 70 °C. Front-face protection is IP40, so it's splash-resistant from the front in a closed panel but not washdown-rated.