EVC2 Modbus RTU meters: Difference between revisions
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Modbus RTU meters are a stable and efficient solution, especially when the electrical cabinet already requires to be cleaned up and adapted for an EV charger installation. Since the connection is wired it ensures a great latency and can be of help in especially low power or high-power installations, where even small delays are relevant to be addressed immediately. Robust and industrial solution for long time usage. Good for places with unstable Wi-Fi connectivity. 1 phase and 3 phase versions available. | Modbus RTU meters are a stable and efficient solution, especially when the electrical cabinet already requires to be cleaned up and adapted for an EV charger installation. Since the connection is wired it ensures a great latency and can be of help in especially low power or high-power installations, where even small delays are relevant to be addressed immediately. Robust and industrial solution for long time usage. Good for places with unstable Wi-Fi connectivity. 1 phase and 3 phase versions available. | ||
=== Datasheets === | === Datasheets === | ||
[[SDM230 | |||
[[media:SDM230 series Datasheet.pdf|SDM230 series Datasheet]] | |||
[[Media:EASTRON SDM72D-M DATASHEET.pdf|EASTRON SDM72D-M datasheet]] | [[Media:EASTRON SDM72D-M DATASHEET.pdf|EASTRON SDM72D-M datasheet]] | ||
=== Manual === | === Manual === | ||
[[Media:SDM230-M MID datasheet.pdf|SDM230-M MID manual]] | [[Media:SDM230-M MID datasheet.pdf|SDM230-M MID manual]] | ||
Latest revision as of 12:25, 14 November 2025
Modbus RTU meters
Eastron SDM 230-M (1PH) and SDM 72D-M (3PH)
Description
Modbus RTU meters are a stable and efficient solution, especially when the electrical cabinet already requires to be cleaned up and adapted for an EV charger installation. Since the connection is wired it ensures a great latency and can be of help in especially low power or high-power installations, where even small delays are relevant to be addressed immediately. Robust and industrial solution for long time usage. Good for places with unstable Wi-Fi connectivity. 1 phase and 3 phase versions available.
Datasheets
Manual
Certification and declarations
Wiring scheme
Set up
Technical data
| Model | SDM72D/BR/BI | ||
| Nominal voltage(Un) | 3x230/400 V ac | ||
| Operational voltage | 80%~120% of Un | ||
| Insulation capabilities - AC voltage withstand | 4kV for 1 minute | ||
| Insulation capabilities - Impulse voltage withstand | 6kV-1.2µS | ||
| Basic current (Ib) | 10A | ||
| Maximum rated current (Imax) | 100A | ||
| Operational current range | 0.4% Ib–Imax | ||
| Over current withstand | 30 Imax for 0.01s | ||
| Operational frequency range | 50 or 60Hz | ||
| Power consumption per phase | ≤2W/10VA | ||
| Pulse output | 1000imp/kWh | ||
| Display | LCD | ||
| Max reading | 999999.9 kWh | ||
| Performance criteria | |||
|---|---|---|---|
| Operating humidity | ≤90% | ||
| Storage humidity | ≤95% | ||
| Operating temperature | -25°C ~ +55°C | ||
| Storage temperature | -40°C ~ +70°C | ||
| Reference temperature | 23°C ± 2°C | ||
| International standard | IEC 62053-21 / EN50470-1/3 | ||
| Additional characteristics | |||
| Accuracy class | Class1/Class B | ||
| Installation category | CAT III | ||
| Mechanical environment | M1 | ||
| Electromagnetic environment | E2 | ||
| Degree of pollution | 2 | ||
| Protection against penetration of dust and water | IP51 (indoor) | ||
| Insulating encased meter or protective class | II | ||
| Altitude | up to 2000m | ||
| Electrostatic discharges | 8kV contact / 15kV air gap | ||
| Electromagnetic HF fields | IEC 61000-4-3 | ||
| Electrical fast transients | 4kV | ||
| Surge | 4kV | ||
| Radiated & conducted emissions | EN 55022 | ||
| Modbus | |||
| Bus type | RS485 (semi-duplex) | ||
| Protocol | Modbus RTU | ||
| Baud rate | 1200/2400/4800/9600bps | ||
| Address range | 1–247 | ||
| Max. bus loading | 64 pcs | ||
| Communication distance | 1000M | ||
| Parity | EVEN/ODD/NONE | ||
| Data bit | 8 | ||
| Stop bit | 1 | ||