Monitoring applications: Phase, voltage
Supply voltage: 380 V ac, 400 V ac, 415 V ac, 480 V ac
Contact arrangement: 1 pole changeover switch
Electrical phases: 3
Phase sensitivity: Phase loss, phase sequence
Delay time: 250 ms
Operating temperature range: -20 to +60 °C

The K8DT-PZ monitors three-phase unbalance, under/over voltage, phase sequence, and phase loss. The Omron K8DT-PZ three-phase sequence and phase failure monitor protects motors and other equipment from unstable voltages in the power system. It detects overvoltages, undervoltages, voltage unbalance, phase sequence, and phase failure for three-phase power supplies. Phase failure detection occurs while the motor is running, and it has higher resistance to inverter noise. The device has a width of 17.5 mm to reduce space required in panels and features push-in plus terminals that reduce wiring complexity, along with double inlet holes for crossover wiring on all terminals.