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

EM471SA SINGLE PHASE ELECTRONIC MULTI-RATE PREPAYMENT FRONT BOARD INSTALLED ACTIVE ENERGY METER

Application
Model EM471SA single phase electronic multi-rate prepayment front board installed active energy meter is a kind of single phase two wire active energy meter which purchase electricity by IC card, electric energy measuring, ladder rate, load control and using electricity management. The meter completely accord with relevant technical requirements of class 1 single phase active energy meter stipulated in international standard IEC 62053-21. It can accurate and directly measure 50Hz or 60Hz active energy consumption from single phase AC electricity net, it is use for setting indoor or out door meter box. This meter has LCD display shows power. And there is far infrared communication module in it, can read the meter and set the system parameters conveniently. It has following features: good reliability, light weight, specious nice appearance, convenient installation, etc.

Functions and features
● Standard configuration one meter one card, can repeat input money from PC machinery which with IC programmer.
● There a clock which is implement ladder rate, and there is far infrared communication module in it, use for checking the clock, reading the meter and setting the system parameters.
● It has IC card with code and data against false, standard configuration use storage IC card, may select logic encryption card (Product Configuration code is SE) or non-contact RF card. (Product Configuration code is SI)
● Standard configuration payment by kWh, may select payment by money. (Please specified when ordering).
● Standard configuration of the prepayment management system use of single version, may select network version. (Please specified when ordering).
● It has load control and function of automatic fault detection and instructions, with function of open terminals cover and detection and open terminals cover and cut power.
● Standard configuration 7 LCD digits display, 6+1 digits display (999999.1kWh), may select 5+1LED digits display. (Product Configuration code is RA).
● A port of pulse output passive closed (polarity), complying with standard IEC 62053-31 and standard DIN 43864.
● Three LED instructions power supply state (green), signal of energy impulse (red) and direction of the flow of load current (yellow).
● Automatic detection the direction of the flow of load current. When the yellow LED display, that is meaning the direction of the flow of load current reverse
● Single direction single component measurement single phase two wire active energy consumption. It is nothing with direction of the flow of load current. Complying with standard IEC 62053-21.
● Direct connect operation, there are two types you may select. Standard configuration type 1B wiring, may select type 1A wiring (Product Configuration code is SB).
● Front board three fixed installation, standard configuration extension terminals cover, in order to protect to use safety, may select short terminals cover. (Product Configuration code is SC).

Technical parameters

 Model

Accuracy

Reference
voltage (V)

Current
specifications (A)

Starting
current (A)

Insulation
performance

 EM471SA

Class 1

127
230

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 1B)

Terminal

 Note

1 Inlet phase line
3 Outgoing phase line
4 Inlet neutral line
6 Outgoing neutral line
2 and 5 Port of pulse output passive closed