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NPK Engineering & Service Co., Ltd.

Tested energy meters of this manufacturer are listed below

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WO No: 2077959

Description
Result
Description
Report No
Result
05-1059
Description
Country
Result
Thailand
Description
Type
Result
NP121D, NP123D, NP125D
Description
Class (Wh)
Result
2
Description
Elements
Result
1-phase
Description
Wiring
Result
2-wire
Description
Connection
Result
Direct connected
Description
Technology
Result
Mechanical (ferraris)
Description
Frequency
Result
50
Description
Current
Result
5(25), 20(40) or 20(80)
Description
Voltage
Result
220 or 230
Description
Register
Result
Mechanical
Description
Standards
Result
IEC 62053-11