What this 630 A MCCB is for
Its 330 kA interrupting capacity at 240 V (242 kA at 415 V, 187 kA at 500 V, 9 kA at 690 V) means it can clear fault currents up to those levels without upstream coordination loss — critical for high-fault installations like transformer secondaries or large motor control centers. The ETU860 electronic trip unit provides adjustable protection curves and communication capability, letting you integrate breaker status into a BMS or SCADA system. Ground-fault monitoring via summation current formation on L+N is onboard.
Thermal derating — the real ampacity
At 45 °C it's 600 A; at 50 °C, 570 A; at 55 °C, 540 A; at 60 °C, 510 A; at 65 °C, 480 A; at 70 °C, 450 A.
This order code carries a current lifecycle status — no EOL notice or phase-out date on record. For volume buys or BOM-freeze projects, an RFQ locks the allocation.
Dimensions: 184 mm wide × 248 mm high × 110 mm deep (7.24 × 9.76 × 4.33 in). Front face carries IP40 protection; the rear and sides are unrated for enclosure mounting. The 4-pole form factor requires a 4-module wide cutout in the switchboard. Optional motor drive allows remote open/close. Communication function is built into the ETU860 — no separate module needed for basic status reporting.