■ Powered by the measuring circuit   
■ Compatible with AC and DC supply
■ Built-in LCD and keypad afford a precise,digital setting
■ Compact modular 43mm  housing
■ Adjustable over- and undervoltage threshold
■ Independent adjustable delay time for overvoltage, undervoltage
■ Adjustable reset mode:automatic reset or manual reset 
■ 1CO & 1NC contacts
■ Fault recording with last 3 faults