28 A motor rating and 24 V AC coil — the two numbers that decide fit
The A26-30-10-81 is a 3-pole IEC contactor from the A-Line series, A26 frame, carrying a 28 A motor current rating and a 40 A general-purpose rating at 600 V — the motor current is the figure that governs the load side for inductive starts, while the general-purpose number applies to resistive loads where inrush is negligible. Coil voltage is 24 V AC — this is the control-circuit spec that must match the PLC output or relay driving the contactor; a mismatch here means the contactor either drops out or fails to pull in. The integrated 1 N.O. auxiliary contact block provides a feedback signal for the control logic without a separate add-on module, saving a DIN-rail slot and one wiring step.
End-of-life status — what it means for your BOM line
For an existing BOM position that calls out the A26-30-10-81, the only sourcing channel is the independent surplus and broker market — quantities are lot-specific, and availability is confirmed at RFQ, not assumed from a stock count. If you are qualifying a replacement, the 28 A motor current and 24 V AC coil are the two parameters that must match in the alternative part; the A26 frame footprint and the 1 N.O. auxiliary contact arrangement are the mechanical constraints.
Panel integration — DIN-rail and wiring checklist
Power wiring lands on the line-side and load-side terminals; the coil terminals are separate and accept up to 14 AWG stranded wire. The auxiliary contact block is factory-fitted and cannot be field-repositioned on this variant.