The Eaton A95-30-11-81 is a 3-pole non-reversing across-the-line contactor rated at 150 A with a 24 V AC coil and one normally-open plus one normally-closed auxiliary contact. This is a high-current, non-reversing design—meaning it connects a single-direction motor or resistive load, not a reversing starter pair. The 150 A rating in AC-3 duty (motor switching) is the figure that governs real-world fit: it handles induction motors up to roughly 75 kW at 400 V, depending on the specific load cycle.
The 150 A rating is the continuous thermal current (Ith) and the AC-3 motor-switching current. For a non-reversing contactor, that means it closes and opens a motor circuit at full load without the additional wear of reversing duty. The 24 V AC coil is standard for control transformers in North American panels; verify the control voltage matches your existing transformer tap before specifying. The 1NO + 1NC auxiliary contact block provides feedback for PLC inputs or status indication—enough for a basic run signal and a fault contact.
Deployment context
This contactor is a panel-mount device, typically installed on a backplate or DIN rail in motor control centers (MCCs) or individual starter enclosures. The 150 A frame size uses bolted power connections rather than spring terminals—plan for lug terminations on the line and load sides. The auxiliary contact block is factory-fitted, so no separate ordering or wiring of add-on blocks is needed.