3 Phase 4 Wire Energy Meter 220/380v 20-80a Energy Consumption Kwh Meter Rail Installation Digital 3-phase 4-wire energy meter with high accuracy is designed for the measurement of rated frequency 50 or 60Hz single-phase AC active electricity.High-quality flame retardant ABS case, with good impact , heat/ cold , insulativity and durability.With 6+2 digits backlight LCD display, the meter accurately counts and clearly displays the energy consumption.Adopts 35mm DIN standard guide rail installation, compact size and light weight make installation easier.Pure copper wiring terminal with excellent conductivity and corrosion can current during long-time performance.Display: LCD Display with BacklightCurrent: 3x20(80)AVoltage: 3x220/380VAccuracy Class: 10Standard: IEC62053-21Frequency: 50/ 60HzImpulse Constant: 400imp/kWh Consumption: less than equal 2WStarting Current: 0004lbWorking Temperature: -20~55Storage Temperature: -25~70Material:ABScolour:transparentPackage Contents:1 * Energy Meter DTM0241 * English instructionsOnly the above package content, other products are not included.Note: Light 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.