It uses a TM240 thermal-magnetic release — fixed thermal and magnetic trip elements, no electronic adjustment. The interrupting capacity is 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, 30 kA at 500 V, and 17 kA at 690 V, so it handles high fault-current scenarios across common low-voltage supply levels. Full-load power loss is 57 W maximum, which matters for enclosure heat budgeting. This is a line-protection breaker — it sits at the incoming feed or main distribution point, not downstream branch protection. The fixed TM240 release means no interchangeable trip units; the breaker is ordered as a single assembly.
Above that, it derates: 243 A at 55 °C, 237 A at 60 °C, 230 A at 65 °C, and 223 A at 70 °C.
The 140 mm width for a 4-pole frame is standard for SENTRON 3VA molded case breakers — it bolts into a panel on a mounting plate or a DIN-rail adapter (not included). The breaker ships with two auxiliary switches HQ (high-quantity contacts) as standard, wired via the front accessory slot.