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Specifications

DDM30SC single phase DIN-Rail KWH Meter 

FUNCTIONS AND FEATURES
1. 35mm standard DIN rail installation or front board setting, complying with standard DIN EN50022.
2. Single pole width.
3. LCD 6+1 digits display (999999.1kWh) by without backlight source common LCD. May select white backlight source LCD display, or clients defined.
4. Standard configuration one port of pulse output passive (polarity), may select increase a distant port of pulse output passive (nonpolarity), complying with standard IEC62053-31 and DIN43864.
5. Single direction measures single phase two wire active power consumption. It is nothing with direction of the flow of load current, complying with standard IEC62053-21, IEC62052-11.
6. Adopts high reliable and long-life electric components, high overload, do not need to calibrate for long-term operation.
7. Directly connect operation.
8. Standard configuration short terminal cover, which is helpful to reduce installation space and make it convenient to install. May select extended terminal cover, which is for protecting the safety of using electricity. 

TECHNICAL  PARAMETERS 
Accuracy Class  1.0
Rated  voltage 110VAC,   120VAC,   220VAC,   230VAC,   240VAC,   etc.
Operation  voltage  range    Un± 20%
Insulation  capabilities AC  voltage  withstand  2kV  for  1  minute;   Impulse  voltage  withstand  6kV  -  1.2/50μ s  waveform.
Rated  current  range 5(20)A  ,   5(25)A  ,   5(30)A, 5(32)A, etc.
Operation  current  range 0.05Ib~  Imax
Starting  current  0.004Ib
Rated  frequency 50Hz  or  60  Hz
Internal  power  consumption Voltage  circuit  ≤ 1.0W  5VA;   Current  circuit  ≤ 1VA(Ib)
Impulse  valence  Ra 0, 5  or  1.0  Wh/imp 
Interface Optical  coupler  (SO  corresponding  to  DIN43864)
Max. operation  temperature -40° C  ~  +80° C 
Max. storage  temperature -45° C  ~  +85° C
Relative  humidity ≤   85%
Dimension 17.5mm  *  76.5mm  *  90mm         
Weight Approx.   90g
*Please  advise  us  if  you  need  any  different  specifications, we  can  make  according  to  your  special  requirements.