• GB/T 17215.321-2008 "Special Requirements for AC Measuring Equipment Part 21: Static Active Energy Meters (Class 1 and Class 2)"

• DL/T 645-2007 "Communication Protocol for Multi functional Energy Meters"

• The voltage sampling circuit adopts resistance voltage division method.

• Apply digital processing technology and SMT process.

• Communication methods: RS485, infrared.

• Standard reference voltage (V): 220

• Standard current (A): 1.5, 5, 10, 15, 20, 30

• Maximum current (A): not greater than 100 and not greater than 10 times the standard current

• Standard reference frequency (Hz): 50

Merit: Level 1, Level 2

• Optional direct access or transformer access

• The metering section can choose between ordinary and anti-theft electricity