The ABB A185W-20-22-84 is an isolation contactor, catalogued under the description ABB A185W202284 ISOLATION CON. Its primary job is to provide a visible break and galvanic isolation in a control circuit, typically between a power source and a load during maintenance or safety lockout procedures. This is not a general-purpose contactor for repetitive motor starting; it's specified where the standard demands a positive-disconnect isolation function inside the panel.
The manufacturer has assigned this part a lifecycle stage of eol_hot. Production has ended, and the last-time-buy window is closed.