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 resistance, heat and cold resistance, insulation, and durability. Features 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 make installation convenient. Pure copper wiring terminal provides excellent conductivity and corrosion resistance, ensuring stable performance under large current over long periods. This three-phase four-wire DIN rail meter with flame retardant ABS housing is widely used in sub-metering systems. It has a simple design, compact structure, and reliable quality for durable use. Specifications: Display: LCD 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: 2W Starting Current: 0.004In Working Temperature: -20°C to 55°C Storage Temperature: -25°C to 70°C Color: Transparent Material: Flame-retardant ABS + metal Dimensions: 100 x 76 x 65mm Package Contents: 1 x 3 Phase 4 Wire Energy Meter Note: The symbol on the product may vary between batches compared to the image, but this does not affect functionality. The package includes only the items listed. Other accessories are not included. Lighting and display differences may cause slight color variations between the image and the actual item. Measurement tolerances may vary by +/- 1-3cm.