GoodWe GW3K-DNS-G40 3kW Single-Phase String Inverter with Dual MPPT

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Specifications

Ac power kw	3
Communication interfaces	RS485, WiFi, LAN, Bluetooth, 4G
Dimensions mm	358 × 323 × 165
European efficiency percent	97.2
Ingress protection rating	IP66
Max efficiency percent	98.1
Max input current per mppt a	20
Max input voltage dc	600
Mppt count	2
Noise emission db	25
Operating temperature range celsius	-25 to +60
Phase	single
Weight kg	9.2

Description

The GoodWe GW3K-DNS-G40 is a fourth-generation single-phase string inverter designed for residential solar installations. It features dual MPPT trackers, supports up to 200% PV oversizing, and allows a maximum input current of 20A per string, making it compatible with the latest high-power PV modules.

This inverter delivers a maximum efficiency of 98.1% (European efficiency 97.2%) and is 30% lighter than comparable models at just 9.2 kg. It operates quietly (<25 dB) with integrated protections including PV string current monitoring, insulation resistance detection, residual current monitoring, and Type II DC and AC surge protection. Optional features include AI-driven Arc Fault Circuit Interrupter (AFCI) 3.0 and a built-in Rapid Shutdown 2.0 transmitter.

The inverter supports flexible system expansion via the EzLink3000 smart dongle and integrates multiple communication protocols (RS485, WiFi, LAN, Bluetooth, 4G) with Modbus and Sunspec support. It features an IP66 ingress protection rating, allowing both indoor and outdoor installation, and includes a built-in power supply at night function for enhanced energy management.

Frequently Asked Questions

Find quick answers to the most common questions about ordering, delivery and support.

When will my order be delivered?

We aim to deliver your order as quickly as possible (7–10 business days). Delivery is handled by an external logistics partner and shipped to the address you provided during checkout. We guarantee delivery no later than 30 days after order confirmation.

What are the shipping costs?

Shipping costs are calculated based on the order size and delivery address. In some cases, shipping is free above a certain order volume. This is clearly shown before you complete your purchase. If shipping costs apply, they are always visible at checkout.

Can I return my order?

Yes. You can return products within 14 days of receiving them. Please submit a return request first via the return form or by email. Once confirmed, the product must be sent back within 14 days, preferably in the original packaging and in the same condition.

Are there any costs for returns?

Yes. Returns are subject to an administration fee of 5% of the total order value. Return shipping costs are at your expense. After we receive and inspect the returned product, the remaining amount will be refunded within 7 days.

What warranty applies to the products?

Products are supplied by manufacturers or distributors. The manufacturer's warranty conditions apply to each product and may vary by brand and product type. Please consult the product documentation for exact coverage and duration. For inverter repairs performed via our service, we provide a 3-year warranty on proper operation of the repaired inverter.

Which payment methods are accepted?

We accept: American Express, Bancontact, iDEAL, Maestro, Mastercard and Visa. In some cases, and subject to credit approval, payment by invoice may also be possible. All available options are shown during checkout.

Can I cancel or change my order?

Cancellation is only possible before the order is processed. Please submit your cancellation request in writing. Cancellations without valid reason are subject to a fee of 5% of the total order value, with a minimum of €25. For custom-made or specially ordered products already processed, full costs may apply.

What should I do if my order arrives damaged?

If your order arrives damaged, contact us as soon as possible by email or phone. Include clear photos and a description of the issue. We will review your case and advise next steps. Reporting damage promptly helps us resolve it efficiently.

What happens if my delivery is delayed?

If a delay occurs, you will be informed in writing. We guarantee delivery no later than 30 days after confirmation. If delivery cannot be completed within that period, you may request a refund or a replacement product of equal value.

How can I contact customer support?

You can contact us by phone (+31 180 810402) or email (sales@search4solar.com). Our office is located in Barendrecht, the Netherlands, and we also operate from Valencia, Spain. We aim to respond to complaints within 7 days; if more time is needed, you will receive confirmation within 2 days with an estimated response date.

GoodWe GW3K-DNS-G40 3kW Single-Phase String Inverter with Dual MPPT

Specifications

Description

Product datasheet

Frequently Asked Questions

When will my order be delivered?

What are the shipping costs?

Can I return my order?

Are there any costs for returns?

What warranty applies to the products?

Which payment methods are accepted?

Can I cancel or change my order?

What should I do if my order arrives damaged?

What happens if my delivery is delayed?

How can I contact customer support?

Your overview

GoodWe GW3K-DNS-G40 3kW Single-Phase String Inverter with Dual MPPT

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