Electric motor controllers; electric motor efficiency controllers; electronic controllers for machines; process controllers; building systems controllers for elevators, fire prevention systems, climate control systems and security systems; industrial computers; signal processors; temperature controllers for process heating and cooling systems; programmable logic controllers; power controllers; process variable display instruments in the nature of analog meters, digital meters, computer monitors and touch screens for use with electric motor controllers, electric motor efficiency controllers, machine controllers, process controllers, machine control systems, building control systems and domestic appliances; communications network controllers and network interface cards for use with electric motor controllers, electric motor efficiency controllers, machine controllers, process controllers, machine control systems, building control systems and domestic appliances; software for configuration, operation, diagnostics, supervisory control and data acquisition for use with electric motor controllers, electric motor efficiency controllers, machine controllers, process controllers, machine control systems, building control systems and domestic appliances; software for interfacing electric motor controllers, electric motor efficiency controllers, machine controllers, process controllers, machine control systems, building control systems and domestic appliances to the internet; housings, enclosures and chassis for electric motor controllers, electric motor efficiency controllers, machine controllers, process controllers, machine control systems and building control systems