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DDSY3333 single phase prepaid energy meter
DDSY3333 single phase prepaid energy meter

Single phase watt-hour meter adopts LSI, SMT technology and ADE7755 CMOS Chip etc. It is of high stability, accuracy, long life.

1. Brief introduction 

DDSY3333 single phase prepaid electricity meter adopts LSI (large scale integrated  circuit), SMT  technology and ADE7755

 CMOS Chip etc. It is of high stability, accuracy and long life etc. The meter is intended for electric energy measurement and registration in single phase two-wire networks in household. Its performance comply with IEC 62052-11, IEC62053-21.

2. Functions and features 

2.1 High accuracy and stability: there is no need to re-calibrate for long term operation. 

2.2 Way of connection: direct connection, through CT, through CT&PT.

2.3 Front board three fixed hole installation, terminal block is make of bakelite material, which is moisture-resistant, fire-retardant, high temperature overall.

2.4 One meter with one IC card, combine with personal computer by smart card reader. 

2.4 Purchase credit first, then use. That can be recharged. 

2.5 When credit/energy use out, power will automatically cut-off.

2.6 ABS meter casing(polycarbonate optional) and bakelite terminal block. It is of self-extinguishing, moisture-resistant, high temperature resistant.

2.7 LCD back-light(optional)

2.8 Data display on LCD in no-power meter state(optional) 

2.9 fault detection function can be added. Detection of open terminal cover

3. Technical parameters 


Rated current(A)

Voltage (V)

Accuracy class



1.5(6), 2.5(10), 5(20), 5(30), 10(40), 10(60), 15(60), 20(80), 30(100) 

110, 120, 220, 230,240 

1.0S, 2.0S

50, 60

Starting current

Operating temperature range(°C)

Relative humidity

Voltage circuit

Current circuit

0.04Ib(1.0S), 0.05Ib(2.0S)






We are professional energy meter manufacturer. We engaged in producing various types of energy meters, such as electronic energy meter, mechanical energy meter.  Gurantee period of meter is 18months.

DDSY3333 single phase prepaid energy meter

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