Breaking capacity is voltage-dependent: 220 kA at 240 V, 154 kA at 415 V, 121 kA at 440 V, and 17 kA at 500 V and 690 V. That 220 kA figure at 240 V gives headroom for high-fault industrial panels where upstream transformer impedance is low.
Thermal-magnetic release and derating
The overcurrent release is a TM240 thermal-magnetic type. Rated current holds at 25 A from 40 °C through 50 °C, then steps down to 24 A at 55–60 °C and 23 A at 65–70 °C. Maximum power loss is 8.5 W — negligible for panel thermal budgeting but worth noting if the breaker is enclosed in a small non-vented box.
Physical fit
The 3-pole width (three 25.4 mm modules) fits standard DIN-rail or panel-mount cutouts for SENTRON 3VA frames.