Eastron SDM54-DM is a newly designed small-sized three-phase energy meter, its characteristics are very suitable for the measurement and use of charging piles, making it the best choice for charging pile customers. The meter measures and displays the characteristics of single phase two wires (1p2w) and three phase four wires(3p4w) supplies, including voltage, frequency, current, power, power factor, active and reactive energy, imported or exported. Energy is measured in terms of kWh and kVArh. Maximum demand on power and current can be measured over preset periods of up to 60 minutes.
Eastron SDM54-DM supports max. 45A direct loads per phase, the meter is designed for DIN-rail mounting, with IP51 front protection. The meter is optionally equipped with RS485 Modbus port. Configuration can also be done via keypad, which is password protected.
The unit has been approved to meet the requirements of EU Directive 2014/32/EU.
Electrical Characteristics | ||
Type of Measurement | RMS including harmonics on three phase AC system (3P, 3P+N) | |
Measurement Accuracy | Voltage | ±0.5% |
Current | ±0.5% | |
Frequency | ±0.2% | |
Power Factor | ±1% | |
Active Power | ±1% | |
Reactive Power | ±1% | |
Apparent Power | ±1% | |
Active Energy | Class 1.0 IEC 62053-21 Class B EN50470-3:2022 | |
Reactive Energy | IEC62053-23 Class 2 | |
Input & Output | |||
Input | Current | Rated Current (Ib/Iref) | 5A |
Max Current(Imax.) | 45A | ||
Min Current(Imin.) | 0.5A | ||
Starting Current | 20mA | ||
Voltage | Rated Voltage (Un) | 230V L-N / 120V L-N | |
Operational Voltage | 80%~120% of Un | ||
Output | RS485 Modbus | ||
RS485 Modbus Communications | |
Communication Address | 1~247 |
Transmission Distance | 1000m Maximum |
Transmission Speed | 2400bps~38400bps, Default: 9600bps |
Parity | None (default), Odd, Even |
Stop Bits | 1 or 2 |
Response Time | <80 mS |
