The First Company E184 Disconnect Switch is an electrical service switch designed to provide a convenient means of disconnecting power from compatible HVAC equipment. It is installed in the control panel and interrupts the electrical circuit when switched off, allowing technicians to isolate equipment during servicing or maintenance. Designed for use with First Company SPX(U), SPX(U)-... https://www.partshnc.com/first-company-e184-disconnect-switch