25 Year OEM,ODM$OBM Special Circuit Break Manufactory In China
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APPLICATION

EM073QL SINGLE PHASE THREE WIRE ELECTROMECHANICAL FRONT BOARD INSTALLED ACTIVE ENERGY METER

Application
Model EM073QL single phase three wire electromechanical front board installed active energy meter is a kind of new style single phase three wire active energy meter, it is designed on the basis of original DD862 single phase electromechanical meter, and fully absorb new technologies about electromechanical meter from domestic and abroad. The meter completely accord with relevant technical requirements of class 2 single phase active energy meter stipulated in international standard IEC 62053-11. It can accurate and directly measure 50Hz or 60Hz active energy consumption from single phase three wire AC electricity net, it is use for setting indoor or out door meter box. The meter has novel design, rational structure, and it can display total energy consumption by drum wheel mechanical register. It has following features: high overload, power loss, long-life, specious appearance, etc.

Functions and features
● Front board three fixed installation, the bottom of the meter and the terminal is made of quality bakelite material which is moisture-resistant, fire-retardant, high temperature molded overall. The cover is also made of bakelite material and has a transparent glass window. It has following features: Good weather ability, high rigid, good insulation performance, etc.
● The meter frame adopt aluminum molding with excellent mechanical strength, stable structure and anti-impact.
● Voltage components and current components is used of double insulation structure, has good electrical characteristics.
● Standard configuration bottom bearing is used of double gem bearing, oriented bearing is made of high wear resistance copper alloy bush and stainless steel needle. It has following features: long life and minimal friction, etc. May select magnetic thrust bearing (Product Configuration code is QF) or magnetic suspension (Product Configuration code is QR).
● All kinds of adjustment mechanism adopt no step shifting mechanism. The meter starting and creeping needn’t to be adjust which is finished by anti-creeping hole of disc and convenient for adjusting by users.
● Standard configuration 6 digits display by drum wheel mechanical register, may select 5 digits display by drum wheel mechanical register (Product Configuration code is QI).
● Standard configuration without the device which can prevent retrograde, may select add the function of prevent retrograde. (Please specified when ordering).
● Standard configuration without handle, may select add a handle for carrying the meter conveniently. (Please specified when ordering).
● Single component measure single phase three wire active energy consumption. Complying with standard IEC 62053-11.
● Direct connect operation, type 2A wiring.
● Extension terminals cover, in order to protect to use safety.

Technical parameters

 Model

Accuracy

Reference
voltage (V)

Current
specifications (A)

Starting
current (A)

Insulation
performance

 EM073QL

Class 2

240

5(20)
10(40)
20(80)
30(100)

0.025
0.05
0.1
0.15

AC voltage 4kV for 1 minute,
1.2/ 50us waveform
impulse voltage 8kV

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

Outer and mount dimension

Wiring diagram (Type 2A)

Terminal

 Note

1 Inlet L1 phase line
3 Inlet L2 phase line
4 Outgoing L2 phase line
5 Outgoing L1 phase line