3-pole contactor, 280 A — what it means for the panel
The ABB EHDB280C-2L11 is a 3-pole power contactor rated for 280 A continuous current. That rating governs its use in motor starting, resistive heating, and power-switching circuits where the load current stays at or under that maximum. For a 280 A contactor, the AC-3 motor duty rating (typically 75–80 % of the AC-1 resistive rating on this class) is the figure that decides whether it handles a given motor load without derating — the 280 A AC-1 number is the thermal base, but AC-3 is what you size against for squirrel-cage motors.
Sourcing and fit for the BOM line
For a BOM freeze or line-down replacement, this part can be specified with confidence that it is not subject to an active phase-out.