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. 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 enable easy installation. Pure copper wiring terminals provide excellent conductivity and corrosion resistance for reliable long-term performance. This is a simple three-phase four-wire DIN rail meter with a flame-retardant ABS case, widely used in sub-metering systems. Features a concise appearance, compact design, and durable construction. Specifications: 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: 2W Starting Current: 0.004A Working Temperature: -20°C to 55°C Storage Temperature: -25°C to 70°C Color: Transparent Material: Flame-retardant ABS + metal Size: 100 x 76 x 65mm Package Contents: 1 x 3 Phase 4 Wire Energy Meter Note: For different batches, the symbol on the product may vary from the image shown, which does not affect functionality. 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 have an allowable error of +/- 1-3cm.