Energy Meter GoodWe GM330 RS485 / Modbus RTU

GoodWe Smart Meter GM330

A GoodWe-native commercial smart meter for three-phase solar sites that need clearer consumption, demand, and export-control visibility inside the GoodWe inverter ecosystem.

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Why it fits

The GoodWe Smart Meter GM330 is a three-phase commercial smart meter designed to work with GoodWe solar and storage systems for site-consumption tracking, demand monitoring, and export-power control.

What stands out

Works with 1P2W, 3P3W, and 3P4W grid types
Uses external CTs, which makes it suitable for larger-current commercial installs
Supports export power limit and load-monitoring workflows with compatible GoodWe inverters
DIN-rail form factor for switchboard installation

Buyer notes

This is not an app-first consumer meter. It makes the most sense in installer-led solar projects where GoodWe inverter compatibility, RS485 integration, and export-control behavior matter more than standalone homeowner UX.

Product Images

Gallery, diagrams, and supporting visuals.

GoodWe Smart Meter GM330 official product image — Official GoodWe product image for the GM330 commercial smart meter.

GoodWe Smart Meter GM330 official front render — Official GoodWe front render for the GM330 smart meter.

GoodWe Smart Meter GM330 official angled render — Official GoodWe angled render for the GM330 smart meter.

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Phase support: 1P2W / 3P3W / 3P4W
Installation: DIN-rail mounted commercial smart meter that uses external current transformers
Measurement: CT-based commercial smart meter for PV consumption, demand, load, and export-power monitoring
Max current: 5000 A
Accuracy class: Class 0.5 (voltage/current and active energy) / Class 1 (reactive energy)
Current sensing: External CTs required; configurable nA:5A CT ratio, with the quick guide noting GM330 is not equipped with bundled CTs
Local API: No
Cloud dependency: GoodWe SEMS and compatible inverter workflows are typically used for normal monitoring, demand visibility, and export-control operation.
Home Assistant: No
Solar import/export: Yes
Availability: North America official page / broader global GoodWe commercial smart-meter availability

Last verified: May 19, 2026
Product page: Official page
Documentation: Official docs
Notes: Verified on 2026-05-19 against GoodWe's official GM330 North America product page, the current GM330 North America datasheet, and the current GMK120 / GMK140 / GM330 Quick Installation Guide V1.2 dated 2024-02-25. The reviewed official source set confirms GM330 as a C&I smart meter with 1P2W / 3P3W / 3P4W support, RS485 Modbus RTU communication, DIN-rail mounting, Class 0.5 voltage/current and active-energy accuracy, Class 1 reactive-energy accuracy, external CT input with configurable nA:5A CT ratios, and export power limit plus load-monitoring use in compatible GoodWe inverter systems.