# PV Combiner Box CNC NV822331 DC 8-in 8-out IP66

**URL:** https://aio.lv/en/product--cnc-nv822331--10842636
**Data updated:** 2025-12-30 12:45 (EET)
**Category:** Solar Panel Accessories
**Manufacturer:** CNC
**Manufacturer code:** NV822331
**EAN:** 6942367528787
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 482.99 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 399.17 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--cnc-nv822331--10842636

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 22.06.2026 | free |
| Pickup points | 29.06.2026 | 1.99 EUR |
| Courier delivery to door | 29.06.2026 | 4.99 EUR |

## Summary description

CNC PV Combiner Box NV822331 is a DC combiner with 8 inputs and 8 outputs designed for photovoltaic systems. Rated IP66 for dust-tight and strong water protection, it consolidates multiple PV string connections, simplifies wiring and protection layout, and supports safe DC distribution and monitoring. Suitable for residential and commercial PV installations where robust outdoor enclosures are required.

## Long description

The CNC PV Combiner Box NV822331 is a DC string combiner designed for photovoltaic systems with 8 inputs and 8 outputs. Housed in an IP66 polycarbonate enclosure with V0 flame-retardant rating and UV resistance, the unit integrates DC switching, surge protection and MC4 connectors to consolidate string connections and simplify DC distribution for residential and commercial solar installations. Dimensions: 528 x 458 x 358 mm. Standards include IEC60529 for enclosure protection.
Advantages
The combiner box combines eight PV strings into eight outputs while providing built-in DC switches with lockable handles and a patented DC arc extinguishing chamber for safer isolation. Integrated DC surge protection devices (SPDs) respond in less than 25 ns to protect downstream equipment. The enclosure is IP66 rated for dust and water ingress, UV resistant and meets V0 UL94 flame-retardant requirements.
Suitable for
Small to medium rooftop PV systems with multiple string inputs
Ground-mounted commercial arrays requiring grouped string protection
Outdoor installations needing IP66 weatherproof enclosures
Installations using MC4 connector cabling
Key specifications
Model: CNC NV822331
Inputs / outputs: 8 in / 8 out
Maximum DC voltage: 1000 V
DC switches: 1000 V, 25 A (4 pcs), lockable handle, patented arc extinguishing chamber; standards UL508i, IEC60947-3 Pv2
DC SPD: 1000 V, Imax 40 kA (8 pcs), In 20 kA, response time \<25 ns; standards IEC 61643-31, EN 50539-11 + A1
Short-circuit current per input (Isc): configurable 15 A–30 A
Maximum output current: 25 A
Voltage protection level (Up): 3.6 kV
Box material: polycarbonate
Protection class: IP66; flame retardant V0 (UL94)
Dimensions: 528 x 458 x 358 mm
Cable glands: input PG09 (2.5–16 mm); output PG21 (2.5–16 mm)
Operating temperature range: -25 °C to +60 °C
Warranty: 24 months
How to use
Mount the combiner box on a suitable flat surface following local electrical codes and the manufacturer’s installation instructions. Connect up to eight PV string outputs to the MC4 input connectors and route the combined outputs through the output glands. Use the lockable DC switches to isolate strings during installation and maintenance. Ensure SPDs and switches are accessible for inspection and that cable sizes match the specified gland ranges and current ratings.
Usage recommendations
Install the PV Combiner Box NV822331 in a shaded or ventilated location when possible, keep connectors and glands sealed to maintain IP66 protection, and verify that system voltage and string Isc do not exceed the specified ratings. Schedule periodic inspections of connections, SPDs and the enclosure to ensure continued protection and reliable operation.

## FAQ

### How much does the PV Combiner Box CNC NV822331 cost, and is it available for purchase?

The price is 482.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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 22.06.2026 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: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can PV Combiner Box CNC NV822331 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 CNC 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 CNC 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/10842636/60193731_large.webp