Model YEM021AC three phase four wire electronic DIN rail active energy meter is a kind of new style three

phase four wire active energy meter, it adopts micro-electronics technique, and imported large scale integrate

circuit, uses advanced technique of digital and SMT techniques, etc. The meter completely accords with relevant

technical requirements of class 1 three phase active energy meter stipulated in international standard IEC 62053-21.It can accurately and directly measure 50Hz or 60Hz active energy consumption from three phase four wire AC

electricity net. This meter has seven digits LCD displays shows the active energy consumption. And there are

far infrared and RS485 communication module in it. Contact with all kind of AMR system conveniently It has

following features: good reliability, small volume, light weight, specious nice appearance, convenient installation, etc.

 1.35mm standard DIN rail installation , complying with standard DIN EN50022. Or front board installed

(mounting holes center distance 63 mm), users can choose any one by themselves.

2.Ten pole width (Modulus 12.5mm), complying with standard JB/T7121-1993.

3.Type S wiring (Inlet from bottom, outlet from top), use CT connect operation, may select set 27 ratio, after

set the meter will direct reading when read, and haven’t multiplied by rate of CT.

4.Seven digits display LCD, 5+2 digits display (99999.91 kWh, only ratio of CT when 5:5 A) or 7digits, it is

choose by ratio of CT which is set.

5.There are a polarity port of pulse output passive closed and a nonpolarity port of pulse output passive

distant (the output rate is 10 kWh/pulse), ). Complying with standard IEC 62053-31 and DIN 43864.

6.Standard configuration there are a port of far infrared data communication and a port of RS485 data

communication. Communication agreement complying with standard DL/T645-1997, can also choose

without function of data communication. (Product Configuration code is NC).

7 .ix LED instructions respectively every power supply state, signal of closed energy impulse and distant

energy impulse and data communication state.

8.Automatic detection the direction of the flow of load current. And Instructions on individual LCD

9.Single direction three components measure three phase four wire active energy consumption. It is

nothing with direction of the flow of load current. Complying with standard IEC 62053-21.

10.Standard configuration short terminals cover, may select extension terminals cover, in order to protect

to use safety. (Product Configuration code is AF).