The Sigen Power Sensor Three Phase External CT 120A DH is a high-precision energy monitoring device designed for three-phase electrical systems. It delivers real-time measurement of power consumption, generation, and grid import/export, enabling advanced energy management and system optimization.
With external split-core current transformers (CTs), installation is simple and non-intrusive—no need to disconnect existing wiring. It is ideal for commercial, industrial, and large residential solar applications requiring accurate three-phase monitoring.
Key Features
Advanced Energy Monitoring for Smart Systems
By continuously measuring and reporting energy flow across all three phases, the Sigen Power Sensor enables intelligent energy optimization, including self-consumption maximization, load balancing, and export limitation.
It is a key component in building efficient, data-driven solar and energy storage systems for modern energy infrastructure.
| Grid connection type | 3P3W/3P4W |
|---|---|
| Nominal AC frequency | 50 / 60 |
| Rated input voltage | 173 ~ 480 |
| Voltage accuracy | 0.5% |
| Current accuracy | 0.5% |
| Power accuracy | 1% |
| Frequency accuracy | 0.2% |
| Interface | RS485 |
|---|---|
| Baud rate | 9600 |
| Protocol | Modbus RTU |
| Dimension (w/h/d) mm | 72 / 94.5 / 65 |
|---|---|
| Weight (kg) | 0.20 |
| Operating temperature range | -40°C ~ +70°C |
| Storage temperature range | -25 ~ 60 |
| Relative humidity range | 0%~90% |
| Ingress protection rating | IP20 |
| Standard | EN 61010-1:2010, EN 61010-2-030:2010 |
|---|