GoodWe Smart Meter GMK330 - 3-phase (external CT, newer)
GoodWe Smart Meter GMK330 - 3-phase (external CT, newer) is backordered and will ship as soon as it is back in stock.
Do you have a question?
Do you have a question?
Product related question? Contact us:
Monday - Friday: 08:00 - 16:00
Payment and shipping
Payment and shipping
Payment
The order total can be paid by bank transfer in advance, in HUF or EUR. Cash on delivery is available for orders up to HUF 500,000, with a handling fee of HUF 4,990. For orders over HUF 500,000, only bank transfer in advance is possible. The proforma invoice will be sent via email and will contain the necessary bank transfer details.
Shipping
We deliver orders throughout Hungary with the help of our reliable logistics partners or our own transport. Personal pickup is possible by prior arrangement. Shipping costs are determined based on the size, weight, and type of the ordered product:
- Small package: HUF 3,790
- Large package: HUF 6,490
- Heat pump: free shipping
- Solar panel and battery: individual shipping fee (based on size, weight, and quantity)
Description
Description
The GoodWe GMK330 smart meter is a metering unit designed for use with GoodWe inverter systems. It is suitable for consumption measurement, load monitoring, export limitation, and zero-feed applications.
The device operates with external current transformers (CTs), and according to the documentation, it comes with 3 CTs. The newer model uses a standardized 120A:40mA current transformer. The previous 200A:50mA version will be discontinued after June 2026, according to the manufacturer's notice.
The GMK330 supports 1P2W, 3P3W, and 3P4W network types. It connects to the inverter via RS485 communication, with a maximum communication distance of 1000 meters. The accuracy class for voltage, current, and active energy is Class 0.5, and for reactive energy, it is Class 1.
The meter is DIN rail mountable and has a 4-module housing. It is IP20 rated and designed for indoor installation. The device features 4 LED status indicators and a reset button.
Key Features at a Glance:
- GoodWe smart meter with external CTs
- Can be used for three-phase, single-phase, and 3-wire networks
- Supported network types: 1P2W / 3P3W / 3P4W
- Supplied with 3 current transformers
- CT ratio: 120A:40mA
- Previous version: 200A:50mA, being phased out
- RS485 communication, up to 1000 m distance
- Accuracy: Class 0.5 for voltage, current, and active energy
- Reactive energy accuracy: Class 1
- DIN rail mountable, IP20 rated design with 4 LED status indicators
The GoodWe GMK330 is suitable for GoodWe inverter systems when a factory-supplied external CT-based metering unit is required for consumption monitoring, export limitation, or hybrid inverter charge control.

