Parameter

Description&Value

Measurement

kWh&kVarh

Total active kWh (bidirectional --positive and negative in total)

Electrical Paratmeters

U (Voltage), I (Current), P (Active Power), Q (Reactive Power),S (Apparent Power), PF (Power Factor), F (Frequency)

Function Mode

Prepaid Mode

Meter will shut down the power once the credit balance is below zero. (Data like credit balance is saved in the meter)

Postpaid Mode

Meter won't shut down the power once credit balance is below zero. (Can remotely control the meter to shut down the power by using
Prepaid System)

Mode Change

Meter can change the mode between prepaid and postpaid by receiving the command from prepaid system

Control

Auto-tripping Control

Auto-tripping control is processed by the built-in high-capacity holding relay of the meters to realized on-off control of
circuits breaker, also, this type of control will only be triggerred when meter is in Prepaid Mode

Remote Control

Remote control will be command by prepaid system. When users give a command of switch on-off to a certain meter, this command will
be send to meters through wireless communication and finally meter will shut down or recover the power after receiving the
command. This type of control can be done when meter is in Postpaid Mode

Multi-rate
Multi-Tariff

Optional Function

4 tariff rates (spike, peak, valley, flat); 14 time intervals by day

Input
Voltage

Rated Voltage

3x380~456Vac L-L (Voltage signal input will be also served as power supply for meters)

Frequency

45~65Hz

Consumption

<4VA (each phase)

Input
Current

Rated Current

3x10(80)A AC (direct connection); 3x1(6)A AC (connected via CTs)

Starting Current

0.004 Ib (direct connection); 0.002 In (connnected via CTs)

Accuracy

Measurement

Class 0.5s

Clock

≤0.5s/d

Pulse

Pulse Width

80ms±20ms

Pulse Constant

6400imp/kWh (direct connection); 400imp/kWh (connected via CTs)

Communication

RS485 Interface

MODBUS-RTU Protocol

Infrared

Used for Meter Reading

HMI

LCD Display

8 bits section LCD display

Keypads Programming

Setting of communication, current ratio and etc.

Mechanical
Feature

Out-line Dimension
(L*W*H)

72mm*88mm*70mm

Max Wiring Ability (with Flexible Cable)

25mm2

Environment

Operating Temperature

-25℃~+55℃

Storage Temperature

-40℃~+70℃

Humidity

≤95% (No condensation)

Altitude

＜2000m