The 630 A continuous rating is the frame's thermal limit at 40 °C ambient. Push the ambient to 50 °C and you derate to 570 A; at 60 °C you're at 510 A. That derating curve is what you use for a panel sitting next to a furnace line or inside a non-conditioned enclosure — the 40 °C number is the catalog headline, but the 50 °C or 60 °C row is the one that governs your real installation. It communicates — the listing flags a communication function — so it can talk to a higher-level monitoring system for power metering and event logging. No undervoltage release or voltage trip built in, so if you need UVR you add it externally. Breaking capacity: 330 kA at 240 V, 242 kA at 415/440 V, 187 kA at 500 V, and 9 kA at 690 V.
Dimensions: 248 mm tall, 184 mm wide, 110 mm deep. Four-pole frame means it occupies a 184 mm-wide slot on the DIN-rail or panel-mount footprint — standard for a 630 A MCCB in this class.