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Solis S6-EH3P20K-H 20kW Three-Phase High Voltage Energy Storage Inverter

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Specifications
Ac power kw 20
Battery voltage range v 120–800
Dimensions mm 563 × 546 × 250
Max battery charge discharge kw 20
Max dc input power kw 32
Max efficiency percent 97.7
Mppt count 4
Phase three-phase
Warranty years 5
Weight kg 35.2

Description

The Solis S6-EH3P20K-H is a 20 kW three-phase hybrid energy storage inverter designed for residential, small, and C&I PV installations. It features four independent MPPT trackers, a maximum DC input power of 32 kW, and support for Li-ion battery systems with voltage range 120–800 V. The inverter includes dual backup ports for load control, generator compatibility, and peak shaving capabilities, with an integrated DC switch and optional AFCI 2.0 protection.

Efficiency reaches 97.7% (max) and 97.5% (EU), with a maximum charge/discharge power of 20 kW and current of 50 A. The inverter operates at three-phase 230 V / 400 V, 50/60 Hz, and includes integrated energy metering and three current transformers (CT). AC voltage detection prevents reverse current damage to generators, and unbalanced/half-wave load support is provided on both grid and backup ports.

The unit measures 563 × 546 × 250 mm, weighs 35.2 kg, and operates in ambient temperatures from −25 to +60 °C. It includes a 7.0" LCD display with Bluetooth and mobile app connectivity, plus CAN, RS485, Ethernet, and optional Wi-Fi/cellular/LAN communication. The inverter meets EN 50549-1/-10, VDE4105, and IEC/EN 62109-1/-2 standards.

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.
Solis

Solis S6-EH3P20K-H 20kW Three-Phase High Voltage Energy Storage Inverter

The Solis S6-EH3P20K-H is a 20 kW three-phase hybrid energy storage inverter designed for residential, small, and C&I PV installations. It features four independent MPPT trackers, a maximum DC input power of 32 kW, and support for Li-ion battery systems with voltage range 120–800 V. The inverter includes dual backup ports for load control, generator compatibility, and peak shaving capabilities, with an integrated DC switch and optional AFCI 2.0 protection.

Efficiency reaches 97.7% (max) and 97.5% (EU), with a maximum charge/discharge power of 20 kW and current of 50 A. The inverter operates at three-phase 230 V / 400 V, 50/60 Hz, and includes integrated energy metering and three current transformers (CT). AC voltage detection prevents reverse current damage to generators, and unbalanced/half-wave load support is provided on both grid and backup ports.

The unit measures 563 × 546 × 250 mm, weighs 35.2 kg, and operates in ambient temperatures from −25 to +60 °C. It includes a 7.0" LCD display with Bluetooth and mobile app connectivity, plus CAN, RS485, Ethernet, and optional Wi-Fi/cellular/LAN communication. The inverter meets EN 50549-1/-10, VDE4105, and IEC/EN 62109-1/-2 standards.

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