... 14001,IEC 4)OEM GeneralThe DDS226 type single-phase electronic watt-hour meter adopt exclusive use LSI,the device typifying ... classClass 1 or class 2 DDS226 Single-phase Elect ionic Watt-hour Meter Verified Information This information is Verified ... Line Capacity Actual Units Produced(Previous Year) Circuit breaker, KWH meter, Power supply, Transformer, Switch cabinet, Explosion-proof products ...