Sunsynk Acure SmartCT Wireless CT Clamp – SUNCT-RS03 The Sunsynk SUNCT-RS03 SmartCT provides wireless grid monitoring for compatible Sunsynk Acure hybrid inverters. It measures the flow of electricity between the property and the grid, allowing the inverter to respond accurately to grid import and export. Communication between the SmartCT and inverter is handled wirelessly using LoRa technology. This can remove the need to install a conventional CT signal cable between the consumer unit and inverter, making it particularly useful when the two are located in different parts of a property. Cleaner installation: Ideal for installations where routing a CT cable through finished walls, between floors or across a property would be difficult or disruptive. Key Features Wireless CT communication using the Acure inverter’s LoRa connection. Bidirectional measurement of grid import and export. Supports energy management, self-consumption control and export limitation. No CT signal cable required between the SmartCT and inverter. Suitable for single-phase and three-phase systems. IP65-rated enclosure for protection against dust and water ingress. Compatible with the Sunsynk Acure inverter platform. Commissioned through the inverter settings using the SmartCT serial number and matching LoRa channel. Wireless Grid Monitoring The SmartCT monitors current at the grid connection and sends the measurement data to the inverter wirelessly. The inverter can then determine whether the property is importing electricity from the grid or exporting surplus power. This information can be used by the Acure system to prioritise self-consumption, manage battery operation and regulate inverter output where an export limit has been configured. Designed for Difficult CT Cable Routes On a conventional installation, the CT clamp must be connected to the inverter using a dedicated signal cable. This can be inconvenient when the consumer unit is inside the house while the inverter is installed in a garage, plant room or external building. The SUNCT-RS03 provides a wireless alternative, helping to reduce installation time and avoid unnecessary trunking, conduit or alterations to finished surfaces. Technical Specifications Manufacturer Sunsynk Model SUNCT-RS03 Product type Wireless current transformer / SmartCT Compatible system Sunsynk Acure inverter platform Phase compatibility Single phase and three phase Communication LoRa wireless communication Measurement Grid import and export Ingress protection IP65 Colour Black Net weight 0.6kg Gross weight 1.05kg Installation and Commissioning The CT sensors must be installed in the correct position and orientation so the system can distinguish between imported and exported energy. After installation, the SmartCT is registered in the Acure inverter settings using its serial number. The LoRa channel on the SmartCT must then be matched with the channel shown by the inverter. Important: Installation and commissioning should be completed by a suitably qualified electrical or solar installer. Compatibility should be confirmed against the exact Acure inverter model and installed firmware before purchase. Ideal For Acure installations where the inverter and consumer unit are far apart. Finished properties where installing a new CT signal cable would be disruptive. Systems requiring accurate grid import and export measurement. Installations using export limitation or self-consumption control. Residential and commercial single-phase or three-phase applications.
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