Three phase four wire transformer meter - LT CT, HT CT

Accuracy

RTC

Active energy

Class 0.5S/0.2S (IEC 62053-21/22)

RTC source

Built-in real-time clock

Reactive energy

Class 1.0/2.0 (IEC 62053-23）

RTC accuracy

0.5 seconds/day @23℃ and 5ppm coefficient

Constant

10000imp,

RTC battery

3.6V/1200mAh battery, 10years life.

Voltage & Frequency

Tariff and calender tables

Nominal voltage (Un)

3*63/100V/230/240Vac

Tariff calender tables

Two: active tariff and passive tariff

Voltage range

70%Un~120%Un;

Season tables

Maximum 12 tables; default 2 tables

Frequency

50Hz/60Hz ± 5Hz

Week tables

Maximum 12 tables; default 2 tables

Current

Day tables

Maximum 8 tables; default 2 tables

Basic current（Ib）

1A/5A

timetable number

Maximum 10 tables; default 2 tables

Maximum current

2A/10A

Tariff number

Maximum 8 tariff; default 4 tariff

Starting current(Ist)

0.002Ib/0.001Ib

Communication port and protocol

Limit current

1.2Imax

Communication protocol

DLMS/COSEM, IEC62056-21; STS

LCD

Local comport

Optical port, Optional for RS232/RS485/MBUS.

Backlight

Supported

Remote comport

PLC/RF/2G/4G/LoRaWAN/Wi-Sun/WIFI/BLE/LAN.

LCD Size (W×H)

78mm × 23mm

Mechanical specification

LCD display

8 digits display

Weight （kg）

1.9KG

Auto/manual scroll display

Protection class

IP 54, comply with IEC 60529

Power consumption

Dimensions (W×D×H)

260mm × 74mm × 160mm

Voltage circuit

<1W(or <8VA)@230V

Housing material

PC+glass-fiber

Current circuit

<0.2VA@Ib

Terminal block material

PC+glass-fiber

Environmental Condition

Terminal cover

Transparent

Working Temp. range

-25°C~+70°C (wide temp.)

Meter cover

Non-transparent

-40°C~+70°C (ultra wide temp. )

Sealing

Humidity range

Up to 95%, non-condensing

Meter body sealing

2 sealing screws

Lightning protection

4kV or 10kV

Terminal and module

4 sealing screws