DD256 Type Long Life Alternating Current Watt-hour Meters is a kind of new style single phase two wire active energy meter development long-life technology. The meter completely accord with relevant technical requirements of class 2 single phase active energy meter stipulated in International standard IEC 60521. It can accurately and directly measure 50Hz or 60Hz active energy consumption from single phase AC electricity net, it is use for setting indoor or out door meter box, and it can display total energy consumption by drum wheel mechanical counter. It has following features: High overload, power loss, specious appearance, etc. The life of meter working is more than 25 years.Specification
|Load Current||5(20)A, 5(30)A, 10(40)A, 10(60)A, 20(80)A|
|Power Loss||Voltage Circuit: ≤ 1W|
|Current Circuit||≤ 0.2W, 0.25VA|
|Test Voltage(V)||2kV(50Hz, 1 minute)|
1. Class: 2.0
2. Register: 5 or 6 digits display by drum wheel mechanical counter.
3. Bearing: The meter adopt magnetic thrust bottom bearing.
4. Materials: The cover is made of PC material which is
Transparent and anti-UV molded overall, the base of the meter and the terminal block is made of quality bakelite material which is moistureresistant, fire-retardant, high temperature molded overall.