25 Year OEM,ODM$OBM Special Circuit Break Manufactory In China
  jack@yuanky.com
  jack_yuanky
  jack_yuanky@hotmail.com
Fax: 0086-577-62652370
Tel: 0086-577-62655872

APPLICATION

EM321CT THREE PHASE THREE WIRE ELECTRONIC FRONT BOARD INSTALLED ACTIVE ENERGY METER

Application
Model EM321CT three phase three wire electronic front board installed active energy meter is a kind of new style three phase three wire active energy meter, it adopt micro-electronics technique, and imported large scale integrate circuit, use advanced technique of digital and SMT techniques, etc. The meter completely accord with relevant technical requirements of class 1 three phase active energy meter stipulated in international standard IEC 62053-21. It can accurate and directly measure 50Hz or 60Hz active energy consumption from three phase three wire AC electricity net, it is use for setting indoor or out door, it can display total energy consumption by step motor type impulse register. It has following features: good reliability, small volume, light weight, specious nice appearance, convenient installation,
etc.

Functions and features
● Front board three fixed installation, up and down mounting holes center distance is 198-212 mm, users can choose any one by themselves.
● 6 digits display (999999KWh) by step motor type impulse register.
● Standard configuration only a polarity port of pulse output passive, may select add a nonpolarity port of pulse output passive distant (Product Configuration code is DH). And contact with all kind of AMR system conveniently, Complying with standard IEC 62053-31 and DIN 43864.
● Three LED instructions power supply state (L12 & L32) and signal of energy impulse.
● Standard configuration don’t detection direction of the flow of load current. May select automatic detection the direction of the flow of load current. And instructions on individual LED. (Please specified when ordering)
● Single direction two components measure three phase three wire active energy consumption. It is nothing with direction of the flow of load current. Complying with standard IEC 62053-21.
● Standard configuration direct connect operation , type 13B wiring, we can also choose another type of wiring, and use 5+1 digits display by impulse register, CT (Product Configuration code is CV) and PT & CT (Product Configuration code is CX) for operation, it is type 5B wiring.
● Standard configuration extension terminals cover, in order to protect to use safety, may select short terminals cover. (Product Configuration code is EH).

Technical parameters

 Model

Accuracy

Reference
voltage (V)

Current
specifications (A)

Starting
current (A)

Insulation
performance

 EM321CT

Class 1

3 X 220
3 X 400

5(30)
10(60)
20(100)

0.02
0.04
0.08

AC voltage 4kV for 1 minute,
1.2/50us waveform
impulse voltage 6kV

*If you need different reference voltage or current specification, please advisory our sales.

Outer and mount dimension

Wiring diagram (Type 13B)

Terminal

 Note

1 Inlet L1 line
3 Outgoing L1 line
4 Inlet L2 line
6 Outgoing L2 line
7 Inlet L3 line
9 Outgoing L3 line
10 Don't use
11 Don't use
20 and 21 Port of pulse output passive