Certificate of Conformity
Certificate Number: N° 250008RECO08-B-CER
Issued To
License Holder: GoodWe Technologies Co., Ltd.
Factory Location: No. 90 Zijin Rd., New District, Suzhou, 215011, China
Product Certification
Product Type: Bidirectional converter
Models: GW3K-EHA-G20, GW3.6K-EHA-G20, GW5K-EHA-G20, GW6K-EHA-G20, GW8K-EHA-G20, GW9.999K-EHA-G20, GW10K-EHA-G20 (See page 3 for full list)
Technical Data
Nominal Power: (Refer to page 3)
Nominal Voltage: 230 VAC
Frequency: 50 Hz
Firmware Version: 010101
Number of Phases: Single-phase (L/N/PE)
Isolation Transformer: No
Control Device: Internal (See page 2)
Compliance and Standards
The product is in compliance with the test standard:
- UNE 217001:2020-10 "Tests for systems that prevent energy discharge to the distribution grid"
- Taking into account the applicable requirements of the regulation: Annex I of ITC-BT-40 - Systems to prevent energy discharge to the grid "Low voltage electrical regulation and ITC. Updated edition of April 3, 2025".
The equipment is certified according to the SGS internal procedure PE.T-ECPE-51, in accordance with the requirements established in the standard UNE-EN ISO/IEC 17065.
Certificate Information
This certificate contains the following information:
- Technical information of power generators.
- Technical information of power analyzers.
- Installation scheme for power limitation, including components and communication type.
- Maximum number of generators to be connected in parallel.
Validity
First Issued: August 19, 2025
Valid Until: August 19, 2030
Issued in: Madrid, August 19, 2025
Installation Components and Schemes
Current Sensor Details
| Brand | Model | Manufacturer | Characteristics |
|---|---|---|---|
| Bojing (1) | CTK160402B | Shandong Bojing Electronic Technology Co., Ltd. | Rated current: 120 A/40 mA; Power accuracy: 0.5 % |
| ELECMAT (2) | EICT-120K-T022PW | Elecmat Technology Co., Ltd. | Rated current: 120 A/40 mA; Power accuracy: 0.5 % |
Note: (1) The CTK160402B current sensor should be used to achieve a total system accuracy of 0.5%. (2) The EICT-120K-T022PW current sensor has the same accuracy as CTK160402B. CTK160402B was used for testing as a representative example.
Installation Schemes
Electrical Scheme for Single Inverter System
This diagram illustrates the electrical scheme for a single inverter system. It shows a PV string connected to the DC input of a GoodWe inverter. The inverter is also connected to a battery. The AC output of the inverter supplies power to 'Loads' (consumptions) and the 'Grid'. A current transformer (CT) is depicted measuring current flow.
Electrical Scheme for Multiple Inverters System
This diagram shows the electrical scheme for a multiple inverter system. It features a PV string connected to the DC input of a 'Master Inverter'. This master inverter is linked to a battery and its AC output powers 'Loads' and connects to the 'Grid'. A 'Slave Inverter' is also connected in parallel, receiving power from the PV string and communicating with the master. Both inverters' AC outputs are connected to loads and the grid, with current transformers (CT) for measurement.
Parallel Connection Limit
Using the CTK160402B current sensor, the maximum number of inverters that can be connected in parallel is 7.
Product References and Nominal Characteristics
| Model | PV Input Max. DC Voltage | MPPT Voltage Range | AC Output Rated Power | AC Output Rated Current |
|---|---|---|---|---|
| GW3K-EHA-G20 | 600 V | 50~560 V | 3.0 kW | 13.1 A |
| GW3.6K-EHA-G20 | 3.6 kW | 15.7 A | ||
| GW5K-EHA-G20 | 5.0 kW | 21.8 A | ||
| GW6K-EHA-G20 | 6.0 kW | 26.1 A | ||
| GW8K-EHA-G20 | 600 V | 50~560 V | 8.0 kW | 34.8 A |
| GW9.999K-EHA-G20 | 9.999 kW | 43.5 A | ||
| GW10K-EHA-G20 | 600 V | 50~560 V | 10.0 kW | 43.5 A |
