The Eaton EHDB280C-1L22SS is a 3-pole disconnect switch rated 280 A at 120/60 VAC, fitted with 2 normally-open and 2 normally-closed surge contacts. This is a panel-mount disconnector used to isolate three-phase loads — motors, pumps, conveyors — in industrial control cabinets where a visible-break disconnect is required for lockout/tagout compliance.
What the 280 A rating means for fit
The 280 A continuous rating governs the disconnect's thermal capacity under normal load. In a 3-pole configuration at 120/60 V, this switch handles motor loads up to approximately 150 kW (at 480 V, derate accordingly). The 2/2 surge contact arrangement — two N/O and two N/C auxiliary contacts — provides feedback and interlock signals without needing a separate contactor block. For panel builders, the surge contacts are rated for pilot-duty switching (typically 600 VAC pilot duty), so they can drive PLC inputs or motor-starter coils directly.