Its TM120M thermal-magnetic release provides inverse-time overload protection (thermal element) and instantaneous short-circuit response (magnetic element), with the 120M designation indicating a fixed magnetic trip threshold suitable for motor starting profiles. The rated insulation voltage is 800 V, and the interrupting ratings climb to 187 kA at 240 V AC, 121 kA at 415 V, 75.6 kA at 440 V, and 7.5 kA at both 500 V and 690 V.
Dimensions are 130 mm high, 76.2 mm wide, 70 mm deep — a compact 3-pole footprint that fits standard DIN-rail or screw-mount panel layouts. No trip indicator on the front face, so visual status checking requires a panel door with a window or a separate auxiliary contact block.