Performance criteria:

 Operating  humidity                   ≤ 75% Storage     humidity                   ≤ 95%Operating temperature         -10°C - +50°CStorage temperature          -30°C - +70°CInternational standard 

                                      IEC 62053-21

Accuracy cl                          1

Protection against penetration        

of dust and water                    IP51

Insulating encased meter of

protective cl                        Ⅱ

 Specifications:

 Nominal voltage    (Un)               230V ACOperational voltage           161 - 300V ACInsulation capabilities: 

AC voltage withstand      2KV for 1 minute    

Impulse voltage withstand

                             6KV – 1.2μS waveformBasic current (Ib)          5 A Maximum rated current (Imax)     50 A

Operational current range   0.25A - 50A 

Over current withstand    1500A for 0.01s 

Operational frequency range  50Hz ±10%Internal power consumption  ≤2W / 10V

Test output flash rate (RED LED)   

                        1600 impulses per kWh

Pulse output rate (pins 2 &3)           

                        1600 pulses per kWh

Power supply indicator (Green LED)   

         Meter is connected and working OK

Consumption indicator (RED LED)     

                     Flashing at load running