The interrupting ratings are substantial: 121 kA at 240 V and 75.6 kA at 415 V, which places it well above typical panel SCCR requirements for most industrial and commercial distribution boards.
The 25 A rating holds flat from 40 °C through 50 °C, then begins a gentle taper: 24 A at 55 °C, 23.5 A at 60 °C, 23 A at 65 °C, and 22.5 A at 70 °C. That means in a crowded panel with ambient temperatures near 60 °C, you lose only 1.5 A of headroom — the breaker still carries a 23.5 A continuous load without tripping.
The 76.2 mm width (three 25.4 mm pole pitches) matches the standard 3VA mounting pattern. The TM240 release is non-adjustable on the thermal side — the 25 A continuous rating is fixed — but the magnetic trip threshold is factory-set at 240 A, which suits motor starting currents up to about 9.6× FLA on a 25 A motor.