The Fox ESS three-phase CHINT meter (DTSU666) gives Fox ESS three-phase inverters accurate, real-time visibility of grid import and export, which is required for correct energy management and export limitation on three-phase systems.
• Three-phase, four-wire metering
• Bidirectional (four-quadrant) energy measurement
• Class 1 accuracy (±1.0%)
• Supplied with 3x CT clamps
It communicates with the inverter over Modbus RTU via RS485, and mounts directly onto a standard DIN rail inside the consumer unit or a dedicated enclosure.
This meter is a required accessory for AC-coupled Fox ESS inverters such as the AC3 series, which rely on an external meter to measure the existing PV inverter's output.
