Line protection MCCB with UVR and aux switches
Breaking capacity runs 242 kA at 240 V, 187 kA at 415/440 V, 121 kA at 500 V, and 3 kA at 690 V. The UVR drops the breaker when control voltage falls below its dropout threshold, which is useful for emergency-stop chains or power-loss sequencing. Panel cutout and DIN-rail adapter follow the 3VA family footprint; if you're swapping from a different MCCB brand, check the mounting centres against your existing backplate.
Integration notes
Mounts on DIN rail or direct panel-mount via the 3VA2 base. Power loss at rated load is 7.9 W maximum; in a sealed enclosure with multiple breakers, that heat adds up, so factor it into your thermal budget. The storage minimum is the handling limit — don't leave it in an unheated truck overnight in a deep freeze, but it can sit on a shelf in a cold warehouse.
