Compact 17.5mm DIN rail housing

Microprocessor based

True R.M.S. monitoring measuring phase to phase (3-wire) or phase to neutral (4-wire) voltages

Selectable nominal voltages to suit most popular 3-wire or 4-wire supply voltages

Monitors own supply and detects phase asymmetry/unbalance

Detects incorrect phase sequence, phase loss and neutral loss1

Adjustment for Asymmetry trip level

Adjustment for Time delay

DPDT relay output 5A

Green LED indication for supply status

Red LED indication for relay status