The 777 Is A Fully Programmable Electronic Overload Relay Designed to Protect Any Motor Drawing 2-800 Full Load Amps (External CTS Are Required Above 90 Amps). The 777 (Family Of Products) Is For 3-Phase 200-480VAC Applications, With Several Specialized Units For Other Voltage Ranges and Unique Applications. Common Applications Include Conveyor Systems, Hvac Equipment, Saws and Grinders, Fan Motors, and Almost Any Pumping Application. Some Unique Applications Include Use With A Subtrol Equipped Franklin Su