

Refoss EM06P
Refoss · EM06P
The Refoss EM06P is a smart energy monitor designed for residential and professional installations that require detailed tracking of electricity consumption and generation. It features six independent channels through current clamps, allowing you to monitor individual circuits or combine channels to represent full three-phase loads. One of its key features is its open API with support for HTTP JSON-RPC 2.0, MQTT, and WebSocket, making fully local integration with Home Assistant easy without relying on cloud services. The EM06P is especially useful for photovoltaic installations, as it can monitor solar production, energy import and export, and support Zero Feed-In strategies to maximize self-consumption. It also includes a local web interface, free historical storage for several years, and ±1% measurement accuracy, offering a very complete solution for advanced energy management.
✓ Pros
- 6 independent channels of monitoring
- Compatible with single-phase and three-phase installations
- Documented open API
- Compatible with MQTT
- Compatible with Home Assistant
- Integrated local web interface
- Can monitor solar power
- Supports Zero Feed-In strategies
- ±1% measurement accuracy
- Long-term free historical storage
- Flexible channel grouping
✗ Cons
- Requires installation inside an electrical panel
- Needs neutral to operate
- Not compatible with Matter
- No built-in display
- Installation recommended by a qualified electrician
Compatibility
Specifications
| Model | EM06P |
| Type | smart energy monitor |
| Channels | 6 independent |
| Max current | 120A per channel |
| Accuracy | ±1% |
| Connectivity | WiFi 2.4 GHz and Bluetooth |
| Protocols | HTTP JSON-RPC 2.0, MQTT and WebSocket |
| Local web interface | yes |
| Home Assistant compatibility | yes |
| Solar monitoring | yes |
| Zero Feed-In | yes |
| Mounting | DIN rail |
| Power supply | 110-240V AC |
| Available data | voltage, current, active power, energy, and power factor |
| Supported installations | single-phase and three-phase |
| Power supply | Corriente eléctrica |
| Neutral wire required | Yes |
