GoodWe GMK330
GoodWe GMK330 is the three-phase smart meter that ships WITH its current transformers — three 120 A:40 mA CTs in the box.
- GM330 / GMK330: universal 1P2W / 3P3W / 3P4W clip-on CT meter, Class 0.5 accuracy, RS485.
- GM3000: dedicated three-phase direct meter for larger installs, Class 1 accuracy, RS485, the meter bundled inside GoodWe's SEC1000/SEC3000 EMS units.
- IP20
- Ingress protection
- Manufacturer
- GoodWe
- Model code
- GMK330
- Item no.
- DLK-GOODWE-GMK330
- Delivery
- Delivery to Germany · EUR 14.90 at checkout
Plan with GMK330
New system, extension or replacement? Linker Advisor starts from this article and asks only for what is still open — existing model, quantity, postcode, installation date.
Figures transcribed from the manufacturer datasheet on file. Confirm your grid code and configuration with our engineers before ordering.
- GoodWe · SAJ · Pylontech · EcoFlow · Chint paired from the maker’s own lists
- Datasheets on file for every item
- Within 24 h engineering response
- MOQ 1 unit · EU delivery
- Engineering-checked configurations
Zero export starts with numbers that hold up.
Bidirectional metering at the grid connection point feeds the inverter the import and export truth it needs.
Three 120 A CTs included
The CTs are in the box: three split-core clamps at 120 A:40 mA, Class 0.5.
Inspect it before you spec it.
Official renders, installation photos and system panels for this model line.
Manufacturer render from the GoodWe GMK330 datasheet (EN).
Specifications
Every value exactly as published in the official GMK330 documentation.
Documents
Pick the rating
GoodWe family. Same engineering, different size.
Every figure comes straight from the manufacturer's official datasheet.
Configuration 2
Choose by service current and voltage window.
- GMK330: ships with three 120 A : 40 mA CTs, 90 to 264 V window, Class 0.5; the standard pick for a residential GoodWe hybrid.
- GM330: no CTs supplied; takes external nA:5A transformers you size to the service, 100 to 472 V window, Class 0.5; the pick above 120 A per phase or outside the GMK330 voltage window.
- GM3000: three fixed 120 A CTs that cannot be replaced, Class 1; per GoodWe's manual each phase must stay below 120 A.
Per GoodWe's compatibility list the meters cover the ET, BT, ETC and BTC storage families and more; one firmware condition applies.
- GM330: ET and ET PLUS+ (5-10 kW), BT (5-10 kW), ET 15-30 kW / ETT, ET 25-50 kW / ETF, ET G2, ETC and BTC, ET LV, ESA and ES families, among others.
- Firmware: on the ET and BT 5-10 kW families GoodWe requires inverter ARM 31 or above for the GM330.
- GM3000: also covers EH, EH PLUS, BH, EHB and ES G2 storage plus SDT G2/G3, MT, MT G2 and HT string inverters.
- Check: confirm your exact model against the compatibility list on the product page before ordering.
Installation & wiring 1
All three are DIN-rail devices with an RS485 link to the inverter.
- Bus: RS485 up to 1000 m on every model.
- Width: GM330 and GMK330 take 4 modules (72 mm); the GM3000 takes 2 modules (36 mm).
- Grid types: GM330 and GMK330 support 1P2W, 3P3W and 3P4W; the GM3000 is a three-phase 230/400 V meter.
- Environment: IP20 across the family; -30 to +70 C on GM330 and GMK330, -25 to +60 C on the GM3000; consumption below 5 W on GM330 and GMK330 and below 3 W on the GM3000.
Operation & warranty 1
They measure import and export at the grid connection point and report to the inverter over RS485, which is what export limiting and self-consumption control run on.
- Accuracy: Class 0.5 voltage, current and active energy on GM330 and GMK330; Class 1 active energy on the GM3000.
- Controller integration: the GM3000 is the meter GoodWe builds into its SEC1000S smart energy controller per the SEC datasheet.
- Diagnostics: LED status indication and a reset button on every model.
Availability & compliance 1
CT supply differs per model, and the GMK330 has a regional split worth checking.
- GM330: no CTs; external nA:5A transformers where n is between 200 and 5000 per GoodWe.
- GMK330: three 120 A : 40 mA CTs supplied; GoodWe also lists a 200 A : 50 mA build that its ET manual marks Brazil only. The European listing is the 120 A : 40 mA unit.
- GM3000: three CTs supplied; they cannot be replaced.
- Billing: GoodWe specifies these meters by accuracy class; if you need billing-grade certification, confirm the certificate set with the quote.
General 2
Choose the GMK330 for residential, the GM330 for larger or wider-voltage services.
- GMK330: ships with three 120 A CTs, covers 90-264 V.
- GM330: takes external nA:5A CTs you size yourself, covers 100-472 V.
- Take the GMK330 for a residential GoodWe hybrid; take the GM330 when the service is larger than 120 A per phase or the voltage is outside the GMK330's window.
GoodWe lists two GMK330 variants under one model name.
- 120 A:40 mA and 200 A:50 mA.
- GoodWe's own ET inverter manual marks the 200 A:50 mA one Brazil only, and both are still in production — it is a regional variant, not a successor.
- The GMK330 sold in Europe is the 120 A:40 mA one, and that is what this listing is.
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