| U1281 | U1289 | U1381 | U1387 | U1389 | |
|---|---|---|---|---|---|
| Item number | U1281 | U1289 | U1381 | U1387 | U1389 |
| Product details page | Details | Details | Details | Details | Details |
| Type of meter | Electronic | Electronic | Electronic | Electronic | Electronic |
| Nominal current (In) | 65 | 65 | 6 | 6 | 6 |
| Max. current (Imax) | 65 | 65 | 6 | 6 | 6 |
| Nominal voltage (Un) N-L | 100 - 500 | 100 - 500 | 100 - 500 | 100 - 500 | 100 - 500 |
| Nominal voltage (Un) L-L | 100 - 500 | 100 - 400 | |||
| Frequency | 50 - 50 | ||||
| Accuracy class | B | B | B | B | B |
| Model | Direct measurement | Direct measurement | Measurement transformer | Measurement transformer | Measurement transformer |
| Energy type | Effective power and blind power | Effective power and blind power | Blind power | Blind power | Blind power |
| Suitable for | Purchase | Purchase | Purchase | Purchase | Purchase |
| Tariff type | Multi-tariff | Multi-tariff | Multi-tariff | Multi-tariff | Multi-tariff |
| Tariff control | Internal/external | Internal/external | |||
| Measurement type load profile | |||||
| Escapement mechanism | |||||
| Calibrated | x | x | x | x | x |
| Approval | Measuring Instruments Directive | Measuring Instruments Directive | Measuring Instruments Directive | Measuring Instruments Directive | Measuring Instruments Directive |
| Pulse output | Electrical | Electrical | Electrical | Electrical | Electrical |
| Pulse type | S0 | S0 | S0 | S0 | S0 |
| Pulse rate | 1 - 1000 | 1 - 1000 | 1 - 10000 | 1 - 10000 | 1 - 10000 |
| Type of indication | Digital | Digital | Digital | Digital | Digital |
| Type of interface | LON bus | LON bus | LON bus | LON bus | LON bus |
| EEC40 signature | |||||
| With lock code | |||||
| Number of positions total (counter) | 3 | ||||
| Degree of protection (IP) | Other | Other | Other | Other | Other |
| Starting current | 20Milliampere | 20Milliampere | 2Milliampere | 2Milliampere | 2Milliampere |
| Minimum current rating (Imin) | 0.1Ampere | 0.1Ampere | 0.01Ampere | 0.01Ampere | 0.01Ampere |
| Sampling rate | Continuous, 32 per period | Continuous, 32 per period | Continuous, 32 per period | Continuous, 32 per period | Continuous, 32 per period |
| Accuracy of reactive energy | 2 | 2 | 2 | 2 | 2 |
| Reference current (Iref) | 5Ampere | 5Ampere | 1Ampere | 1Ampere | 1Ampere |
| Limit frequency | 45Hertz - 65Hertz | 45Hertz - 65Hertz | 45Hertz - 65Hertz | 45Hertz - 65Hertz | 45Hertz - 65Hertz |
| Width in number of modular spacings | 7 | 7 | 7 |