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Sigenergy Sigen Power Sensor TPX-CH Three-Phase Energy Meter for External CTs
The Sigenergy Sigen Power Sensor TPX-CH is the three-phase energy meter intended for commercial and industrial installations with Sigenergy systems (SigenStor, Sigen EV AC Charger). It measures voltage, current, power and bidirectional energy at the connection point, providing the system with the data needed for self-consumption, export limitation and load control.
It is installed on a 35 mm DIN rail in the electrical panel and communicates over RS485 with the Modbus RTU protocol. Current measurement is exclusively indirect, through external current transformers that are not included, with a 5 A or 1 A secondary and an accuracy class of at least 0.5; the transformation ratio can be set from the menu (default value 200). This architecture makes it possible to adapt the meter to any system size by choosing the appropriate CTs.
Key features
Technical specifications
| Feature | Value |
|---|---|
| Product code | 1426002200 |
| Model | Sigen Power Sensor TPX-CH |
| Phases | Three-phase (3P3W / 3P4W) |
| Rated voltage | 100 – 480 V ca, 50/60 Hz |
| Measurement type | Indirect with external CTs (not included) |
| CT requirements | Primary ≥ current to be measured, secondary 5 A or 1 A, class ≥ 0.5 |
| CT ratio | Default 200, adjustable |
| Accuracy class | Voltage ±0.5 %, current ±0.5 %, power ±0.2 % |
| Communication | RS485, Modbus RTU protocol, 9,600 bps |
| Mounting | 35 mm DIN rail |
| Protection rating | IP20 |
| Operating temperature | −25 °C … +65 °C |
| Relative humidity | 0 % … 90 % |
| Dimensions | 72 × 100 × 66 mm |
| Weight | 0.35 kg |
Documentation
PDFDatasheet 1426002200Official manufacturer documentInstallation and wiring must be carried out by qualified personnel in accordance with the applicable standards and the electrical design of the system.