Air Conditioning Disconnects | Eaton An Air Conditioning Disconnect (ACD) provides an installer or repair personnel with a visible disconnecting means while performing maintenance on an air conditioning unit. Eaton offers the industry’s most complete line of ACDs. Devices are available in fused, non-fused, molded case switch or three phase designs, and in metal or plastic enclosures for all application. Wiring Basics for Electrical Disconnect Switches SummarySafetyOperationElectrical disconnects are switches that isolate all wiring in a home or other building from the source of power, typically the utility power service. Also called the service disconnect, this is the first disconnect device after the utility meter. This disconnect may be a special breaker switch housed in an exterior box enclosure, or it may simply be the main circuit breaker on the home's main service panel. It's also possible for a home to have a service disconnect on the outside of the home, while the main service paSee more on thespruce How to Wire an AC Disconnect | DoItYourself The ground wire will be the green or bare copper colored wire in the AC disconnect switch, and should match the color of the wire it is being attached to. Use wiring caps and electrician's tape to seal the connection. Step 5 - Cut Hot Wires. Connect the hot wires to their corresponding hot wire for the AC disconnect switch.