Our 3 Phase Din Rail Energy Meter DTSU2788 and DSSU2788 both adopt microelectronics technology and are used to measure the active electrical energy of three-phase AC with a rated frequency of 50/60HZ.
They measure the electricity consumption in both forward and reverse directions equally. There are two connection methods for this series of electronic three-phase watt-hour meters: direct connection type or connection via mutual inductor type.
This 3 Phase Din Rail Energy Meter all the technical requirements for din-rail three-phase electric energy meters specified in the national standard GB/T17215.321-2008 《Class 1 and Class 2 Static AC Active Watt-Hour Meters》
Technical Functions
- Measures three – phase active electrical energy, no need for calibration during long – term operation.
- Powered by three – phase power supply. If one wire (any one of the three wires of a three – phase three – wire electric energy meter) or two wires (any two of the four wires of a three – phase four – wire electric energy meter) is disconnected, the measurement accuracy is not affected.
- Wide operating temperature range.
- Has phase – failure indication function or voltage indication function
- Display methods: counter, liquid crystal.
- Has remote power – off function.
- Output interface: RS485.
| Technical Index | Data |
| Rated voltage AC | DTSU2788 three phase four wire 3x120/208V,3x220/380V,3x230/400V,3x240/415V |
| Working voltage range | 0.8~1.2Un |
| Rated current | 5ACT,1.5(6)A,5(60)A,10(100A,or other as required |
| Frequency | 50Hz or 60Hz |
| Connection mode | CT type or Direct type |
| Display | mechanical step register or LCD |
| Accuracy class | 1 |
| Power consumption | <0.5W/5VA/each phase |
| Start current | 0.004lb |
| AC voltage withstand | 4000V/25mA for 60 seconds |
| Impulse voltage | 6kV 1.2 μs waveform |
| IP grade | IP20 |
| Constant | 400~6400 imp/kWh |
| Pulse output | Passive pulse,pulse width is 80±5ms |
| Executive standard | DIN 43880,IEC62053-21,IEC62052-11 |
| Work temperature | -30℃~70℃ |
| Outline dimension L×M×H | 125x88x73mm |
| Operating temperature | -25℃~55℃ |
| Storage temperature | -40℃~80℃ |
| Reference temperature | 23℃±2℃ |
| Relative humidity | 0 to 95%,non-condensing |
| Altitude | Up to 2500m |
| Warm up time | 10s |
| Mechanical Environment | M1 |
| Electromagnetic Environment | E2 |
| Degree of pollution | 2 |
