The three-phase active power meter adopts special large-scale integrated circuit, SMT manufacturing process, superior performance, safety and reliability, the maximum overload capacity is 4 times. This series of products has good anti-electromagnetic interference, long service life, high accuracy and reliability, wide load, low power consumption, small volume, light weight, easy to install, and has the function of preventing power theft. · Active positive electric energy measurement; Reverse electrical energy forward metering. · Phase A, Phase B and phase C loss voltage detection indication. · Active power reverse electrical energy detection instruction. · Passive pulse output along the way. Note: 485 communication interface can be installed for LCD display according to user\'s requirement. Color: off-white Product size: 127mm*101mm*78mm Net weight (product itself) : 572G