Its interrupting capacity hits 220 kA at 240 V AC, tapering to 154 kA at 415 V, 121 kA at 440 V, and 17 kA at 500 V or 690 V — so the voltage class of the distribution bus determines which breaking number governs the installation. The TM220 release is adjustable for overloads; the magnetic short-circuit pickup is fixed at 630 A (10× Iu).
The case dimensions (130 mm height, 101.6 mm width, 70 mm depth) fit a standard SENTRON 3VA1 panel cutout; the 4-pole width is wider than a 3-pole, so verify the DIN-rail or mounting-plate spacing before committing the BOM.