SolarEdge SE-MTR240-NN-S-S1 1Phase 240V Energy Meter

The SolarEdge SE-MTR240-NN-S-S1 is a single-phase (1Φ), 240V AC energy meter designed for use in residential and small commercial solar photovoltaic (PV) systems. It works as part of the SolarEdge ecosystem to provide detailed visibility and control over energy production, consumption, and grid interaction.

Key functions

• Energy monitoring: Measures real-time power, energy consumption, and production of a solar system.
• Import/export tracking: Tracks electricity flowing to and from the grid for net metering and analytics.
• Export limitation: Enables control of how much energy is exported to the utility grid.
• StorEdge compatibility: Supports integration with SolarEdge storage and smart energy management systems.

Communication & integration

• Uses RS485 (Modbus protocol) for communication with SolarEdge inverters or gateways.
• Provides data to monitoring platforms for system performance tracking and optimization.

Design & installation

• Single-phase 240V operation (split-phase compatible for U.S. residential systems).
• Requires external current transformers (CTs) (typically 200A or 400A), sold separately.
• Installed at either:
  • Grid connection point (for import/export measurement), or
  • Load panel (for consumption monitoring)
• Housed in a NEMA 3R-rated enclosure for outdoor use.

Technical highlights

• Nominal voltage: 240V AC
• Power consumption: ~3 W
• Communication: RS485 (Modbus)
• Dimensions: ~8.1" × 12.4" × 4.6"
• Enclosure rating: NEMA 3R (weather-resistant)