Key specifications
- Three-phase smart meter (1P2W / 3P3W / 3P4W) for energy monitoring and export control
- Three 120 A split-core current transformers included
- Class 0.5 accuracy on voltage, current and active energy
- RS485 communication with up to 1000 m run length
- DIN-rail mount, 4-module housing (72 x 85 x 72 mm), IP20
- Operating temperature -30 to +70 degrees Celsius
- Compatible with all Goodwe hybrid and grid-tie inverters that support an external smart meter
- Model: GMK330
- Voltage range: 90 to 264 Vac, 50/60 Hz
- CT ratio: 120 A : 40 mA (3 included)
- Accuracy: Class 0.5 (active energy)
- Communication: RS485, up to 1000 m
- Protection rating: IP20 (indoor enclosure required)
- Dimensions: 72 x 85 x 72 mm
- Weight: 240 g
- Current rating: 120A
Suits
The Goodwe GMK330 is a three-phase DIN-rail smart meter designed to pair with Goodwe hybrid and grid-tie inverters for accurate consumption monitoring, export power limiting, and zero-feed control. It ships with three 120 A split-core current transformers and supports any common grid topology (1P2W, 3P3W, 3P4W) with a wide 90 to 264 V input window. Class 0.5 accuracy and a 1000 m RS485 link make it suitable for both residential and small commercial PV sites where the inverter and switchboard are some distance apart.