■ Compact modular 43mm housing
■ Microprocessor technology provides highly accurate and repeatable protection
■ Built-in LCD and keypad afford a precise digital setting
■ Adjustable over- and undervoltage，phase unbalance threshold
■ Independent adjustable delay time for overvoltage, undervoltage, voltage unbalance,phase loss and phase sequence
■ Adjustable reset method:automatic reset or manual reset
■ Start delay(power-on delay)
■ Test trip with test button
■ 1 CO & 1NC contacts
■ with Timer and Counter for runing and faults