Features
◎ With settable CT ratio
◎ M-bus/RS 485 Modbus communications
◎ Pulse Output
◎ Din-rail mounting,4 Modules 72mm Width
◎ LCD with backlight
◎ Multi-measurement:kWh,W,V,A,Hz,etc
◎ With supper capacitor,the LCD is also legible twice within a period of 2 weeks without power supply.
◎ When the phase conductor is missing or the current direction is wrong ‘false’ and the corresponding phase conductor are indicated on the display.
Technical Specifications
Essential information
| Model | Type | Rated Voltage(Un) | Rated Current(Ib) | Pulse constant | Frequency | Dimensions (H×W×D)mm |
| DSZ12WD-3×5A | Three Phase | 3×230V/440V | 5A(6)A | 10imp/kWh | 50Hz | 82.5×72×62.5 |
Electrical Characteristics
| Operational Voltage | Extended Range | Internal Consumption | Accuracy Class |
| 0.9Un～1.1Un | 0.8Un～1.15Un | <0.5W | Class B |
Performance Criteria
| Storage and operating humidity | Annual average value≤75% |
| Operating temperature | -25℃~+55℃ |
| Limiting operating temperature | -40℃~+70℃ |
| Storage and transport temperature | -40℃~+70℃ |
| International standard | IEC62053-21/EN50470-1 /EN50470-3 |
| Mechanical environment | M1 |
| Electromagnetic environment | E2 |
| Protection class | IP51(indoor) |
M-bus Communications(DSZ12WDM-3×5A)
| Interface Standard | M-bus |
| Protocol | Mbus-CR(default)or DL/T 645 |
| Baud Rate | 1200/2400/9600bps |
| Communication Address | 1-250 |
| Transmission Distance | ≥1000m |
| Parity | EVEN/ODD/NONE |
| Stop Bit | 1 or 2 |
| Response Time | <60 ms(read/write) |
M-bus Communications(DSZ14WDRS-3×5A)
| Interface Standard | RS485 |
| Protocol | Modbus RTU(default)or BR14 or DL/T 645 |
| Baud Rate | 1200/2400/4800/ 9600/57600bps |
| Communication Address | 1-250 |
| Maximum bus loading | 64 pcs |
| Transmission Distance | ≥1000m |
| Parity | EVEN/ODD/NONE |
| Data Bits | 8 |
| Stop Bit | 1 |
Typical connection
| Maximum conductor cross section | |
| L | 25mm² |
| N | 16mm² |
| SO | 6mm² |