The DDSU666‑H is a smart power sensor / energy meter from Huawei, primarily used in photovoltaic systems for accurate measurement of voltage, current, power, energy, and frequency, as well as for charging/discharging control in energy storage systems.
It is used to monitor every watt of the system, so that the inverter or energy management system can regulate charging/discharging based on production or consumption needs.
It features an LCD display for immediate visualization of parameters (voltage, current, power, energy, etc.).
It supports RS‑485 communication with the Modbus‑RTU protocol for integration with automation or monitoring systems.
It is designed for easy installation, mounted on a DIN35 rail (standard electrical distribution rail).
The DDSU666‑H is for single-phase systems. In applications with Huawei inverters, the sensor communicates via RS‑485 with the inverter and the FusionSolar system for monitoring, control, and adjustment of energy production and consumption.
*The product is supplied as an independent unit, with the option to be combined with accessories according to the needs and design of the installation.