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| Voltage | |
| Nominal Voltage Un | 230V |
| Limited Voltage | 70% ~ 120% Un |
| Frequency | |
| Nominal Frequency fn | 50 ~ 60 Hz |
| Tolerance | 5% |
| Current | |
| Basic current (ib) | 5A |
| Maximum current (Imax) | 60A/80A |
| Starting current (lst) | 20mA |
| Active energy constant | 1000 imp/kWh |
| Measurement Accuracy | |
| Active energy to IEC 62053 – 21 | Class 1.0 |
| Burden | |
| Voltage circuit | <2W <8VA |
| Current circuit | <1VA |
| Temperature range | |
| Operation meter | -25℃ ~ +70 ℃ |
| Storage | -40℃ ~ +85 ℃ |
| Insulation | |
| Insulation level | 4kV rms 1min |
| Voltage impulse withstand | 8kV 1.2/50 μs |
| Insulation System Classification | Protective Class II |
| Electro Magnetic Compatibility | |
| Electrostatic discharges | |
| Contact discharge | 8kV |
| Air discharge | 16kV |
| Electromagnetic RF fields | |
| 27MHz to 500MHz typical | 10V/m |
| 100kHz to 1GHz typical | 30V/m |
| Fast transient burst test | 4kV |
| Mechanical requirements | |
| Meter shell Protection Rate | IP54 |
| Insulation System Classification | Protective Class II |
| Maximum cable size | 8 mm |
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