Single-phase Electronic Energy Meter DDSU1218

Product Introduction

DDSU1218 single-phase electronic power meter is used to measure single AC active power with rated frequency of 50Hz, with functions of prepayment, load control and RS485 communication (optional 4G communication), etc. The performance indexes are in line with the technical requirements of national standard IEC62053-21 and IEC62053-22 for power meters.

Product specification

Type	Accuracy class	Reference voltage	Current	Pulse constant（imp/kWh）
DDSU1218	1	220V	5(60)A	1200

Main function

Function name	Functional Description	Function provide
Measurement of kWh	Total active kWh (positive and negative in total)	■
Measurement of electricalparameters	U、I 、P、PF、F	■
Pre-paid mode	Through RS485 /4G communication prepaid recharge, data encryption	■
Control	Built-in high-capacity sub-holding relay to achieve load on-off control	■
LCD display	8 bits section LCD display	■
Communication	Communication interface: RS485,4G Communication protocol: MODBUS-RTU,DL/T 645-2007	■
Multi-tariff	4 tariff rates, 14 time interval by day	□

(■：means standard; □：means optional)

Note: Pre-paid mode function can only be achieved with the pre-paid system which designed bySaving Electronic Co.,Ltd.

Technical parameter

Technical parameter		DDSU1218
Voltage	Reference voltage	100-240V
	Reference frequency	45～65Hz
	Consumption	<4VA(Each phase)
Current	Input current	5(60)A
	Starting current	Connect directly: 0.004 Ib, connect via CT: 0.002In
	Consumption	<4VA
Clock accuracy		Error ≤0.5s/d
Communication	Interface	RS485(A+、B-) / 4G
	Connection mode	Shielded twisted pair conductors
	Protocol	MODBUS-RTU DL/T 645-2007
Mechanical performance	Outline (Length × Width × Height)	7610075.1mm
Mechanical performance	Maximum wiring ability (flexiblecable)	25mm²
Work environment	Work temperature	-25℃~55℃
	Storage Temperature	-40℃~70℃
	Relative humidity	≤95%(No condensation)

Dimension drawings (Unit: mm)

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