Microprocessor technology provideshighly accurate and repeatable protection Built-in LCD and keypad afford a precisediqital setting Compact modular 43mm housing Adjustable over-and undervoltage,phase unbalance threshold adjustable delay time forovervoltage, undervoltage phase unbalance Adjustable reset automatic resetor manual reset 1 NOandINC contacts Failure recording with last 3 faults Protective Functions Applications: Phase Loss(Failure) Pase Sequence(Reversal) Phase Unbalance(Asymmetry) Undervoltage Overvoltage Applications: Pumps, Fans, Refrigeration Unit, Blowers, Motors, Compressors, Lifts, Elevators, Crane, Mining excavators and conveyors Rated voltage: 380V 50-60Hz Operating range: 300-490VAC Name: :Voltage relay Contact Load:Low Power Model Number:TOMPD-8S Protect Feature:Sealed Power Source:AC Usage:General color:White Material:plastic size:54 x 80 x 54mm Package Contents: 1 x Voltage relay Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.