What this MCCB brings to a panel
Rated 25 A continuous at 40 °C, it holds that full rating through 50 °C before a gentle derate begins — 24 A at 55 °C, 23 A at 70 °C — which buys headroom in a warm enclosure without upsizing the frame. That kind of SCCR muscle means it's suited for industrial mains where transformer capacity is large and fault current runs high. The UVR drops the breaker if control voltage falls below the dropout threshold, which is standard for emergency-stop circuits or mains-disconnect schemes where loss of control power should kill the load.
Panel fit and footprint
The 3VA1125-5EF36-0DC0 measures 76.2 mm wide, 130 mm tall, and 70 mm deep — a 3-pole frame that fits standard DIN-rail or panel-mount cutouts in SENTRON distribution boards. Power loss is 11 W maximum at rated load, so thermal rise inside a sealed cabinet is manageable; group several of these in a row and the cumulative heat still stays within the derate curve if ambient is kept under 50 °C.