The Eaton A40-30-10-80 is a 3-pole IEC contactor in the A-Line series, A40 frame, with a 240 V AC coil and a built-in 1 N.O. auxiliary contact block. It carries a 42 A motor current rating (AC-3 duty) and a 60 A general-purpose resistive rating (AC-1), both at 600 V rated insulation voltage.
The 42 A AC-3 motor rating is the number that decides whether this contactor handles your motor load — it's the switching current under inductive, full-load conditions, not the continuous carry current. The 60 A AC-1 general-purpose rating applies to resistive loads like heaters. Coil is 240 V AC, so it pulls in on a standard control transformer secondary; verify your control voltage matches before wiring. The 1 N.O. auxiliary block is integrated into the front — no separate add-on needed for basic feedback or holding-circuit interlock.