# PV combiner box CNC NV822553 DC 10-in 10-out IP66

**URL:** https://aio.lv/en/product--cnc-nv822553--11418439
**Data updated:** 2025-12-30 21:17 (EET)
**Category:** Solar Panel Accessories
**Manufacturer:** CNC
**Manufacturer code:** NV822553
**EAN:** 6978567817413
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 519.99 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 429.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--cnc-nv822553--11418439

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.07.2026 | free |
| Pickup points | 06.07.2026 | 1.99 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

CNC PV combiner box NV822553 is a DC junction enclosure with 10 inputs and 10 outputs, rated IP66 for protection against dust and powerful water jets. Designed for photovoltaic systems to combine multiple string circuits into a single output, it supports cable terminations and protection components. Suitable for outdoor installation, it organizes wiring and improves system safety and maintenance.

## Long description

PV combiner box CNC NV822553 is a DC junction enclosure for photovoltaic systems with 10 inputs and 10 outputs, rated IP66 for dust and water protection. The polycarbonate housing (528 x 458 x 358 mm) is UV resistant and V0 flame-retardant, and the unit integrates MC4 connectors, surge protection devices and lockable DC switches to centralize string connections and enhance safety and maintainability in outdoor solar installations.
Advantages
The CNC NV822553 provides consolidated string termination for 10-in/10-out PV arrays, built-in DC surge protection (1000 V, 40 kA per SPD) and four lockable 1000 V/50 A DC switches with patented arc extinguishing chambers. The enclosure meets IP66 and IEC60529 standards, offers flame retardancy (UL94 V0), and supports a wide operating temperature range (-20 °C to +60 °C). Compact dimensions and standardized cable gland sizes simplify installation and cable management.
Suitable for
Medium to large rooftop and ground-mounted PV systems requiring 10 string inputs
Outdoor installations needing IP66-rated DC junction enclosures
Solar arrays where integrated SPD and lockable DC switching are required for safety and maintenance
Key specifications
Model: CNC NV822553
Inputs / Outputs: 10 in / 10 out
Maximum system voltage: 1000 V DC
DC switch: 1000 V, 50 A (4 pcs), lockable handle, patented arc extinguishing chamber — standards UL508i, IEC 60947-3 Pv2
SPD: 1000 V, Imax 40 kA (10 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
Max output current: 50 A
Voltage protection level (Up): 3.6 kV
Enclosure material: polycarbonate; protection class IP66; flame rating UL94 V0
Dimensions: 528 x 458 x 358 mm
Cable gland sizes: input PG09 (2.5–16 mm), output PG21 (2.5–16 mm)
Operating temperature: -20 °C to +60 °C
Standards: IEC60529 and listed electrical standards as above
Warranty: 24 months
How to use
Mount the PV combiner box on a suitable outdoor surface following local electrical codes and ensure the enclosure is positioned to avoid water pooling. Terminate each PV string using the provided MC4-compatible connections and route cables through the specified PG09/PG21 glands. Connect the combined outputs as required to the inverter or downstream DC protection. Use the lockable DC switches for isolating strings during maintenance and verify correct SPD connections to ensure surge protection is active. Commissioning should include continuity, polarity and insulation resistance checks before energizing the array.
Usage recommendations
Inspect cable terminations and gland seals periodically and replace SPDs after they operate or if their rated capacity is exceeded. Ensure switches are locked out during service, and follow manufacturer installation instructions and applicable standards for DC systems.

## FAQ

### How much does the PV combiner box CNC NV822553 cost, and is it available for purchase?

The price is 519.99 € (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 01.07.2026 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 NV822553 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/11418439/66060072_large.webp