3-phase 4-wire energy meter with high accuracy designed for measuring 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 digit backlit LCD display that accurately counts and clearly shows energy consumption. Features 35mm DIN standard rail installation for easy setup, with compact size and lightweight design. Pure copper wiring terminals provide excellent conductivity and corrosion resistance for reliable long-term performance under high current loads. Display: LCD with Backlight Current: 3x20(80)A Voltage: 3x220/380V Accuracy Class: 1.0 Standard: IEC62053-21 Frequency: 50/60Hz Impulse Constant: 400imp/kWh Power Consumption: 2W Starting Current: 0.004A Working Temperature: -20C to 55C Storage Temperature: -25C to 70C Material: ABS Color: Transparent Package Contents: 1 x Energy Meter DTM024 1 x English Instruction Manual Note: The package includes only the items listed above. Other products are not included. Lighting and display differences may cause slight variations in the color of the item compared to the picture. Measurement may vary by +/- 1-3cm due to allowable error.