That 630 A rating is the baseline — the breaker must be derated as ambient temperature rises: 600 A at 45 °C, 570 A at 50 °C, 540 A at 55 °C, 510 A at 60 °C, 480 A at 65 °C, and 450 A at 70 °C. The ETU560 electronic trip unit handles the protection curve. It includes a voltage trigger and a communication function, so it can report status or accept a remote trip signal — useful when the breaker is part of a monitored distribution system. Breaking capacity is substantial: 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 40 kA at 690 V.
Integration — panel fit and wiring notes
The 138 mm width for a 3-pole frame is standard for this class — it occupies three 45 mm module positions on a DIN rail or direct-mount plate. The 110 mm depth includes the rotary handle and rear terminals; verify gland-plate clearance if the breaker is mounted near the back of a shallow enclosure. Maximum power loss is 162 W at rated current. No undervoltage release is fitted; no phase-failure detection is built into the trip unit. If those functions are needed, they must be added externally or specified in a different 3VA2 variant.