Description
SDM72CT-M
THREE PHASE FOUR WIRE ENERGY METER
The SDM72CT-M is Three Phase multi-function energy meter.
The unit measures and displays the characteristics of three phase four wires (3p4w) supply, including voltage, frequency, current, power, active and reactive energy, imported or exported. Energy is measured in terms of kWh, kVArh. The requisite current input(s) are obtained via current transformers(CT).
This meter can be configured to work with a wide range of CTs, giving the unit a wide range of operation. Built-in interfaces provides pulse and RS485 Modbus RTU outputs. Configuration is password protected.
| Electrical Characteristics | ||
| Type of Measurement | RMS on three phase AC system (3P4W) | |
| Measurement Accuracy | Power | 1% of range maximum |
| Active Energy | IEC 62053-21 Class 1.0 / EN50470-1/3 Class B | |
| Reactive Energy | IEC62053-23 Class 2 | |
| Frequency | 0.2% of mid-frequency | |
| Current | 0.5% of range maximum | |
| Voltage | 0.5% of range maximum | |
| Power Factor | 1% of unity (0.01) | |
| Input & Output | |||
| Input-Current | CT Type | CT Primary | 1-9999A |
| CT Secondary | 1A/5A | ||
| Min Current | 0.25A | ||
| Starting Current | 10mA | ||
| Direct Type
|
Rated Current | 10A | |
| Max Current | 100A | ||
| Min Current | 0.5A | ||
| Starting Current | 40mA | ||
| SDM72D-M | 2 Pulse Output + RS485 Modbus | ||
| SDM72CT-M | 2 Pulse Output + RS485 Modbus | ||
| Modbus Communications | |
| Interface Standard and Protocol | RS485 and MODBUS RTU |
| Communication Address | 1~247 |
| Transmission Distance | 1000m Maximum |
| Transmission Speed | 1200bps~9600bps |
| Parity | None (default), Odd, Even |
| Stop Bits | 1 or 2 |
Wiring and Dimension [mm:]
Wiring diagram
Dimensions
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