# Three-phase Backup Box accessory for HUAWEI LUNA2000 Backup Box-B1 — three-phase backup switching for LUNA2000 system

**URL:** https://aio.lv/en/product--huawei-backup-box-b1-3-phase--8596330
**Data updated:** 2026-04-02 14:25 (EEST)
**Category:** Solar Panel Accessories
**Manufacturer:** HUAWEI
**Manufacturer code:** Backup Box-B1 3-phase
**EAN:** 2000001256534
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 692.99 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 572.72 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--huawei-backup-box-b1-3-phase--8596330

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Thursday | free |
| Pickup points | 25.06.2026 | 1.99 EUR |
| Courier delivery to door | 25.06.2026 | 11.29 EUR |

## Summary description

The HUAWEI Backup Box LUNA2000 Backup Box-B1 three-phase is an accessory for the LUNA2000 energy storage and inverter system that provides three-phase backup switching. It enables safe connection of battery storage for backup power and automatic or manual transfer to backup supply. Designed for residential and light commercial installations, it ensures uninterrupted power and smooth transition during grid outages.

## Long description

The HUAWEI LUNA2000 Backup Box-B1 three-phase accessory provides three-phase backup switching for the LUNA2000 energy storage and inverter system. It is designed to enable safe connection of battery storage for backup power and to manage automatic or manual transfer to a backup supply during grid outages. Intended for residential and light commercial installations, this accessory integrates with the LUNA2000 platform to maintain continuity of power and ensure a controlled transition between grid and backup sources.
Advantages
The three-phase Backup Box-B1 supports coordinated switching across three phases, reducing phase imbalance and ensuring stable delivery of backup power to three-phase loads. It offers both automatic and manual transfer options to fit different operational preferences and maintenance needs. Installation with the LUNA2000 system simplifies wiring and control, while built-in safety measures protect connected batteries and loads during transfer events.
Suitable for
 Residential three-phase homes requiring backup power for essential circuits
 Small commercial premises with light three-phase loads
 Properties using HUAWEI LUNA2000 energy storage and inverter systems
 Sites where automatic or manual transfer between grid and battery backup is needed
Key specifications
 Three-phase backup switching capability for balanced transfer across phases
 Supports automatic and manual transfer modes
 Designed for integration with the LUNA2000 energy storage and inverter system
 Intended for residential and light commercial application environments
 Protective features to safeguard batteries and connected loads during switching
How to use
Install the Backup Box-B1 as part of the LUNA2000 system following HUAWEI installation guidelines and local electrical codes. Connect the accessory to the inverter, battery storage and the building three-phase distribution according to the system wiring diagram. Configure the transfer mode in the LUNA2000 control interface to select automatic switching for unattended backup or manual switching for controlled testing and maintenance. Test the switching operation after installation to verify correct sequencing and protection functions.
Usage recommendations
Use qualified personnel for installation and commissioning, and perform regular checks of connections, settings and protective devices. Match the Backup Box-B1 configuration to the specific LUNA2000 system and the electrical load profile to ensure effective three-phase backup operation.

## FAQ

### How much does the HUAWEI LUNA2000 Backup Box-B1 three-phase accessory cost, and is it available for purchase?

The price is 692.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on Thursday at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment, Leasing for legal entities. All transactions are 100% secure and encrypted.

### Can HUAWEI LUNA2000 Backup Box-B1 three-phase accessory be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All HUAWEI products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized HUAWEI service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/8596330/51654995_large.webp