It is a simple three-phase four-module DIN rail meter with flame-retardant ABS casing, widely used in sub-metering system.Its appearance is simple, compact, good quality and durable.Features:Three-phase four-wire energy meter with high accuracy, designed for measuring single-phase AC active energy with rated frequency of 50 or 60Hz.High quality flame retardant ABS housing with good impact resistance, heat/cold resistance, insulation and durability.Compact size and light weight for easy installation using 35mm DIN standard rail mounting.Pure copper terminals with good conductivity and corrosion resistance ensure high current performance over long periods of time. Notes:Due to manual measurement and different lighting conditions, size and color may vary slightly.Thanks for understanding.Specifications: Case color: transparent / white (optional) Material: flame retardant ABSDDisplay: LCD display with backlight Current: 3x5(80)AV Voltage: 3x220/380VAAccuracy class: 1.0 Standard: IEC62053-21 Frequency: 50/ 60Hz Pulse constant: 400imp/kWhPower consumption: 2W Starting current: 0.004lb Operating temperature: -20~55 Storage temperature: -25~70Item size: 100 * 76 * 65mm / in Item weight: 380g / 13.40ozPackage size: 110 * 80 * 70mm / in Package weight: 400g / 14.11ozPacking list: 1 * Energy meter 1 * User manual