m. Сміла, Незалежності, 67г. оф, 406/6
GoodWe GM330 - three-phase energy meter 230/400 V.
Description GoodWe GM330
GoodWe GM330 is a three-phase energy meter for 230/400 V networks, forming part of systems built on GoodWe inverters. The device comes in a modular housing 72 mm wide (four DIN rail modules), weighs 240 grams, has a polycarbonate housing, an operating range from −25 to +60 °C and a 60-month warranty.
The meter's role in a three-phase system
A three-phase site is more complex than a single-phase one not because of the number of conductors but because the load on each phase lives its own life. A pump switches on across one phase, an oven across another, while the third sits almost idle. A minute later the picture is different.
The GM330 captures this data for each phase separately and passes it to the inverter. It is on that basis that the system decides how much to generate, where to direct surplus, when to charge storage, and whether that can be done right now without overloading a particular phase.
Three scenarios where it is indispensable
limiting export to the grid — where the connection terms forbid it or the tariff makes it unprofitable;
maximising self-consumption — keeping generated energy on site rather than sending it outward;
battery charge management — storage fills with surplus rather than with energy bought from the grid;
monitoring — an actual per-phase consumption profile that reveals imbalance and justifies redistributing loads.
A 60-month warranty on a measuring device
Five years of warranty on modular equipment is a figure worth noting. A meter runs continuously for years, and its accuracy can drift over time — and with it the correctness of the entire system's behaviour.
For the owner that means responsibility for measurement stability stays with the manufacturer throughout the warranty period. Given that the whole economics of a solar installation is built on this data, such a term is a solid argument.
Planning board space
Four DIN rail modules is a noticeable amount for a board assembled without any thought of future solar. Before ordering, open the board and confirm there is enough free space.
If not, two workable options exist: extend the existing enclosure or install a small separate box for metering equipment alongside. Both are straightforward, but they must be budgeted for in advance — otherwise installation stalls halfway.
Operating and connection conditions
An IP20 rating implies placement inside a board. A range from −25 to +60 °C allows the board to sit in an unheated room or a sheltered outdoor enclosure. The polycarbonate housing tolerates proximity to equipment that warms up under load.
Before ordering, clarify the measuring circuit connection method and the maximum working current — these determine whether current transformers are needed and at what rating. Compatibility with your specific inverter model should also be verified against the manufacturer's documentation.
Send us the inverter model and the rating of your three-phase supply — we will verify compatibility, calculate the board space required, and confirm whether all necessary components are included.
Characteristics GoodWe GM330
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