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DDS238-4 ZN single phase din rail type multi-function watt hour meter (D1404)

DDS238-4 ZN single phase din rail type multi-function watt hour meter (D1404)


Display mode:

Display format:
①XXXXXX.XX(6-digit integer + 2-digit decimal)

The meter is used for measuring single phase two wire AC active energy and appropriate for users of secondary circuits with multi-rate tariff or single phase electric equipment with narrow interior space. It is produced by SMT (Surface mounting technology) process and meets international standard IEC62053-21. RS-485 data communication function is available upon request to realize remote data collection.

1. By pressing the button, display with backlighting available
2. Active energy is measured bi-directionally and total, forward and reverse electricity and interval electricity can be showed.
3. Interval electric quantity display and reset mode available.
4. Four kinds of rates (T1, T2, T3, T4) and 14 different time intervals within 24 hours could be set.
5. Bills could be automatically monthly charged. Electricity data of last 12 months could be saved. Data could be read through RS485 communication terminal
6. Realtime current, voltage, active power, reactive power, power factors and frequency measurement and display.
7. Remote meter reading is available through RS485 communication interface. The baud rate of data communication is 1200bps~9600bps, conform to MODBUS-RTU.
8. Passive pulse output, conform to DIN43864 standard
9. Continuous data saving after power failure and lasting for more than 15 years.
10. Width of the meter is only 75mm. 35mm DIN-rail installation. Similar shape as 4P breaker.

Technical Data

Rate voltage 110V,120V,220V,230V,240V
Working voltage range 0.8~1.2Un
Rate Current 5(60)A, 10(100)A, or special required
Frequency 50Hz or 60Hz +10%
Connection mode Direct type
Display LCD
Accuracy class 1.0
Power consumption < 0.5W/8VA
Start current 0.004Ib
AC voltage withstand 4000V/25mA for 60 sec
Impulse Voltage 6kV 1.2μs waveform
Over current withstand 30Imax for 0.01s
IP grade IP20
Constant 800~3200 imp/kWh
Clock accuracy < 0.5s/day (23℃)
Pulse output Passive pulse, pulse width is 80+5 ms
Communication port RS485 port , baud rate 1200~9600 bps ,default is 9600bps ,address 1~247,None parity , stop bits 1 , data bits 8 .
Executive standard DIN 43880,IEC62053-21,IEC62052-11,MODBUS-RTU
Outline dimension LXMXH 75x88x73mm
Weight Approx 0.36kg


Voltage 0.5%
Current 0.5%
Power Factor 1%
Active power ±1%
Reactive Power ±2%
Active Energy (kWh) Class 1.0


Operating temperature -25℃~55℃
Storage temperature -40℃~80℃
Reference temperature 23℃+2℃
Relative humidity 0 to 95% , non-condensing
Altitude Up to 2500m
Warm up time 10s
Mechanical Environment M1
Electromagnetic Environment E2
Degree of pollution 2

Wire connection

DDS238-4 ZN single phase din rail type multi-function watt hour meter (D1404)

Outline dimension

DDS238-4 ZN single phase din rail type multi-function watt hour meter (D1404)

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