Its headline interrupting rating hits 440 kA at 240 V, dropping to 330 kA at 415 V and 440 V, 220 kA at 500 V, and 53 kA at 690 V — that SCCR headroom covers most industrial distribution panels feeding motor control centers or welding lines without needing upstream current-limiting fuses.
That thermal stability matters for a body-shop weld line where ambient can spike mid-shift and you can't afford a nuisance trip at takt time. The ETU550 electronic trip unit gives adjustable long-time pickup (Ir) and short-time delay (tsd from 0.05 s to 0.5 s), plus an adjustable instantaneous pickup. That means you can coordinate selectively downstream with feeder breakers — critical on a multi-drop power distribution bus where a fault on one branch shouldn't drop the whole panel. With communication function onboard, this MCCB can report trip events and load current over a fieldbus network — no separate current transformer or I/O module needed. That saves a DIN rail slot and simplifies the BOM for a controls integrator wiring a safety CPU separation.
No last-time-buy notice or phase-out date is available.
Mounting is via screw-clamp terminals to busbars or cable lugs; no DIN-rail adapter on this frame size.