It's a simple three-phase four-wire DIN rail meter with flame retardant ABS case, widely used in sub-metering systems. It features a concise appearance, compact size, and good quality, making it durable for long-term use. Features: 3-phase 4-wire energy meter with high accuracy, designed for the measurement of rated frequency 50 or 60Hz single-phase AC active electricity. High-quality flame retardant ABS case with good impact resistance, heat and cold resistance, insulation, and durability. Equipped with a 6+2 digits backlight LCD display that accurately counts and clearly shows energy consumption. Designed for 35mm DIN standard guide rail installation; compact size and light weight allow for easy installation. Pure copper wiring terminals provide excellent conductivity and corrosion resistance, ensuring stable performance under high current loads over extended periods. Note: Size and color may vary slightly due to manual measurement and different lighting conditions. Specifications: Case Color: Transparent/White (Optional) Material: Flame Retardant ABS Display: LCD Display with Backlight Current: 3x5(80)A Voltage: 3x220/380V Accuracy Class: 1.0 Standard: IEC62053-21 Frequency: 50/60Hz Impulse Constant: 400imp/kWh Power Consumption: less than 2W Starting Current: 0.004Ib Working Temperature: -20~55C Storage Temperature: -25~70C Item Size: 100 x 76 x 65mm Item Weight: 380g Package Size: 110 x 80 x 70mm Package Weight: 400g Package List: 1 x Energy Meter 1 x User Manual