This is a simple three-phase four-module DIN rail meter with flame-retardant ABS housing, widely used in sub-metering systems. It is concise in appearance, compact in size and good in quality, durable to use. Features:< br/> The high precision three-phase 4-wire energy meter is designed for measuring single-phase AC active electricity at rated frequency 50 or 60 Hz. High-quality flame-retardant ABS housing, with good resistance shockproof, heat/cold resistance, insulativity and durability. With a 6+2 digit backlit LCD display, the meter counts accurately and clearly displays the power consumption. Adopts a 35mm DIN standard guide rail installation, compact size and light weight make installation easier. Pure copper wiring terminal with excellent conductivity and corrosion resistance can ensure high current for long-lasting performance.