DDSU21 M1-A (2P) single-phase electronic energy meter (rail)

Single phase electronic energy meter (rail) is an internationally advanced energy meter designed and manufactured based on the actual electricity consumption of users, using advanced energy measurement dedicated chips, mature communication methods, digital sampling processing technology, and SMT manufacturing technology. It has the advantages of small size, high accuracy, good reliability, and easy installation, and can be used to measure single-phase AC active energy. It is suitable for single-phase users such as residents, schools, small shops, and some households in office buildings who have prepaid master stations, centralized remote meter reading needs, and centralized meter installation.

The RS485 communication interface can be used to exchange data with the upper computer, greatly facilitating the automation management of electricity consumption. The communication protocol follows the DL/T645-2007 "Multi functional Energy Meter Communication Protocol" standard/Modbus RTU/MQTT protocol.

• 35mm DIN standard rail installation, in compliance with DIN EN 50022 standard, or front panel installation (with installation hole center distance of 63mm), two installation methods can be freely selected by the user.

• 7-digit LCD display, standard configuration 6+1-bit (999999.9kWh) display.

• Standard configuration: Passive power pulse output.

• Single phase active energy measurement and display of single-phase voltage, current, and active energy.

• Compact in size and resistant to electricity theft.

• Voltage signal power supply, no auxiliary power supply required.

• metering function

  Having positive active energy and data power-off storage for 10 years;

• display function

  ① LCD display, supporting multiple parameter interface displays;

  ② Equipped with automatic parameter rotation display function;

• communication

  ① The electricity meter has one RS485 interface;

  ② The RS485 interface/communication module interface is electrically isolated from the inside of the electricity meter.

• output function

  Has active power test pulse output;

• Event recording function

  ① Real time measurement of effective values such as voltage, current, power, and current frequency;

  ② It has recording functions such as programming and timing.

Installation dimension diagram (top and bottom out)

Direct entry type (without relay)