This device is a Chinese three-phase electricity meter, model DT862.
Details for building materials
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Specifications: Operates with an electrical voltage ranging from 110/220/380 volts, and a frequency of 50/60 Hz, with a current capacity of up to 60 amperes.
Usage: Designed to accurately measure electrical energy consumption in residential and commercial facilities, and features a practical design and ease of installation.
Features: It has a clear mechanical display screen for easy reading, and provides high levels of accuracy in calculating electrical loads.