
SolarEdge SE-MTR-3Y-400V-A Energy Meter 230/400V Modbus for DIN Rail
The SolarEdge SE-MTR-3Y-400V-A is the energy meter with Modbus interface used in SolarEdge systems to measure photovoltaic production, the consumption of the installation or the exchange with the grid. Connected to the inverter, it enables functions such as consumption monitoring, export limitation and Smart Energy management.
It is installed on a DIN rail or on a surface in the electrical panel and can be used on both single-phase and three-phase 230/400V networks. Current measurement is carried out through external current transformers (available in the 100A, 250A and 1000A versions, one for each phase, not included), while the connection to the inverter is made with a half-duplex RS485 bus using the Modbus protocol with 120 Ω line termination.
Key features
Technical specifications
| Feature | Value |
|---|---|
| Product code | SE-MTR-3Y-400V-A |
| Model | SE-MTR-3Y-400V-A |
| Phases | Single-phase (L/N/PE) or three-phase (L1/L2/L3/N/PE) |
| Rated voltage | 230V ac phase-to-neutral / 400V ac line-to-line; range 108 – 305V L-N, 207 – 440V L-L |
| Measurement type | Indirect with external current transformers (one per phase, not included) |
| Compatible CTs | 100A, 250A o 1000A |
| Accuracy class | ±1.25 % at 100 % of the CT rated current; IEC 62053-21 Class 1, IEC 62053-23 Class 2 |
| Communication | RS485 half-duplex, Modbus protocol, 120 Ω line termination |
| Response time | ≤ 200 ms |
| Maximum consumption | 3W |
| Mounting | DIN rail or surface mounting |
| Protection rating | IP20 (indoor use only) |
| Operating temperature | −40 °C … +85 °C |
| Relative humidity | 5 % … 90 %, non-condensing |
| Standards | IEC 61010-1, UL 61010-1, EN 61326, EN 61000 series, EN 55022 Class B |
| Dimensions | 138.6 × 75 × 35 mm |
| Weight | 0.23 kg |
Documentation
PDFDatasheet SE-MTR-3Y-400V-AOfficial manufacturer documentInstallation and wiring must be carried out by qualified personnel in accordance with the applicable standards and the electrical design of the system.