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

EM481UC THREE PHASE FOUR WIRE ELECTRONIC PREPAYMENT FRONT BOARD INSTALLED ACTIVE ENERGY METER

Application
Model EM481UC three phase four wire electronic prepayment front board installed active energy meter is a kind of three phase four wire active energy meter which purchase electricity by IC card, electric energy measuring, 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 three phase four wire AC electricity net, it is use for setting indoor or out door meter box. This meter has7 digits LCD displays 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
● Payment by money, standard configuration one meter one card, can repeat input money from PC machinery which with IC programmer.
● Have three tariffs, may select 4 time area, every time area can set 12 daily period, every time area has one rate, every rate can set three unit price.
● 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 UG) or non-contact RF card. (Product Configuration code is UK)
● Standard configuration of the prepayment management system use of single edition, may select network edition. (Please specified when ordering).
● 7 digits LCD digits display cycle, we can set the cycle display, it can display 8data at most. Can select the data which displayed.
● There are a clock and Maintenance-free backup lithium batteries in it, battery capacity real-time detection and display.
● There is a port of far infrared, it is use for set and reading the meter and check the clock. Set and operation have password protection, communication agreement complying with standard DL/T645-1997.
● 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.
● A port of pulse output passive closed (polarity), complying with standard IEC 62053-31 and standard DIN 43864.
● Eight LED instructions power supply state, signal of energy impulse, the direction of the flow of load current, and the state rates just now.
● Single direction three component 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.
● Direct connect operation, type 16B wiring, may select three phase three wire, direct connect operation, type 13B wiring (Product Configuration code is UD).
● Front board three fixed installation, standard configuration short terminals cover, may select extension terminals cover, in order to protect to use safety. (Product Configuration code is UA).

Technical parameters

 Model

Accuracy

Reference
voltage (V)

Current
specifications (A)

Starting
current (A)

Insulation
performance

 EM481UC

Class 1

3X127/220
3X230/400

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 16B)

Terminal

 Note

1 Inlet phase L1 line
3 Outgoing L1 phase line
4 Inlet L2 phase line
6 Outgoing L2 phase  line
7 Inlet L3 phase line
9 Outgoing L3 phase line
10 Neutral line
12 and 13 Port of pulse output passive closed