Motor duty and coil voltage — what 28 A and 480 V AC mean in the panel
The A26-30-10-51: The 480 V AC coil means the contactor pulls in directly from a 480 V control transformer or line-to-line tap; no intermediate relay or dropping resistor needed if the control bus matches. General-purpose rating of 40 A (AC-1) covers resistive or lightly inductive loads like heater banks or lighting contactor duty, giving headroom above the motor current for non-motor circuits.
Lifecycle reality — EOL hot and what it means for a spare
For a critical spare holding on an existing A-Line panel, this is the moment to secure one in the cabinet before the surplus channel dries up. Lot-specific; quantities are what the channel holds.
Auxiliary contact and frame integration
The built-in 1 N.O. auxiliary contact block saves a DIN rail slot for a separate add-on block in simple interlock or status-feedback circuits — one less part to stock.