Sigenergy CT250-DH US Power Sensor
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Sigenergy CT250-DH US Power Sensor
The Sigenergy Sigen Power Sensor CT250 US is a precision-engineered energy monitoring device designed for North American 120V/240V solar and energy storage systems. Built for accurate bidirectional power measurement and mission-critical solar export control, this RGM-certified power sensor delivers ANSI Class 0.5 energy measurement accuracy for advanced residential energy applications. The system integrates seamlessly with Sigenergy SigenStor installations through RS485 Modbus RTU communication, enabling reliable real-time monitoring, export limiting, and intelligent energy management. Designed for split-phase power systems, the CT250 US includes dual 250A current transformers and supports precise voltage, current, frequency, and energy measurement. Compact DIN rail mounting, robust communication support, and compatibility with modern solar + battery systems make the Sigen Power Sensor ideal for advanced home energy management and grid interaction applications.
KEY FEATURES
- ANSI Class 0.5 certified energy measurement accuracy
- Designed for North American 120V/240V split-phase systems
- Bidirectional power tracking for solar export control
- RS485 Modbus RTU communication integration
- Includes dual 250A current transformers for precise monitoring
SPECIFICATIONS
| Sigen Sensor SP | CT250 US |
|---|---|
| Power Supply | |
| Grid connection type | Split |
| AC input voltage range | 192 ~ 276 V |
| AC frequency | 50 / 60 Hz |
| Measurement Accuracy | |
| Voltage measurement accuracy | 0.5% |
| Current measurement accuracy | 0.5% |
| Electric energy measurement accuracy | ANSI class 0.5 |
| Frequency measurement accuracy | 0.2% |
| Communication | |
| Interface | RS485 |
| Baud rate | 2400 / 4800 / 9600 (Default) / 19200 / 38400 bps |
| Protocol | Modbus RTU |
| General Data | |
| Dimensions (W / H / D) | 1.77 × 3.94 × 2.58 in / 45 × 100 × 65.5 mm |
| Weight | 0.32 lbs / 0.145 kg |
| Storage temperature range | -40 ~ 158 °F / -40 ~ 70 °C |
| Operating temperature range | -13 ~ 131 °F / -25 ~ 55 °C |
| Relative humidity range | < 75% |
| Enclosure type | IP20 |
| Installation method | DIN Rail 35 mm |
| CT Accessory | |
| Number of CT | 2 |
| Cable length of CT | 236.1 in / 6 m |
| Inner diameter of CT | 0.95 in / 24.3 mm |
| Weight of CT | 0.51 lbs / 0.23 kg |
| Current rating of CT | 250 A / 50 mA |
| Standard Compliance | |
| Certifications | UL 61010-1:2012, UL 61010-2-030:2012, ANSI C12.20 |