Its continuous current rating holds 40 A from 40 °C up through 50 °C, then derates to 39 A at 55–60 °C and 38 A at 65 °C, finally 37 A at 70 °C — that thermal curve matters when you pack this into a warm enclosure. The interrupting capacity is the headline: 187 kA at 240 VAC, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 500 V and 690 V.
Undervoltage release and panel integration
It fits a 76.2 mm wide (3 in) DIN-rail footprint, 130 mm tall, 70 mm deep — three modules wide on the rail.
The closest functional peer is the 3VA1110-5ED36-0AA0. Both are 3-pole SENTRON MCCBs with a 40 A frame at 40 °C. The core difference: the 3VA1110 carries a lower interrupting capacity — typically 65 kA at 240 V versus this unit's 187 kA. The 3VA1110 also lacks the undervoltage release that this unit includes.