# PV Combiner Box HiSmart NV820146 DC 3in-3out IP66, for solar string connections

**URL:** https://aio.lv/en/product--hismart-nv820146--5237249
**Data updated:** 2025-12-30 05:58 (EET)
**Category:** Solar Panel Accessories
**Manufacturer:** HiSmart
**Manufacturer code:** NV820146
**EAN:** 9990000820146
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 238.49 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 197.10 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hismart-nv820146--5237249

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 02.07.2026 | free |
| Pickup points | 07.07.2026 | 1.89 EUR |
| Courier delivery to door | 07.07.2026 | 4.99 EUR |

## Summary description

HiSmart PV Combiner Box NV820146 is a DC combiner unit with 3 inputs and 3 outputs, rated with IP66 enclosure protection. Designed for combining solar string outputs and feeding inverters or downstream equipment, it supports secure DC connections and outdoor installation. The box simplifies wiring, centralises string protection and reduces installation time for rooftop or ground-mounted PV systems.

## Long description

HiSmart PV Combiner Box NV820146 is a DC string combiner with 3 inputs and 3 outputs, designed for outdoor solar installations. The IP66 polycarbonate enclosure provides protection against dust and powerful water jets, with IK10 impact resistance and V0 flame-retardant rating. The unit centralises string connections, integrates surge protection and a lockable DC switch to simplify wiring and improve safety for rooftop or ground-mounted PV systems.
Advantages
The combiner box includes three DC surge protection devices (3P, 1000V, 40kA) and a patented 6-pole DC switch (1000V, 50A) with an arc-extinguishing chamber and magnetic steels for fast, reliable interruption. The enclosure is UV resistant and rated IP66 for weather protection. Set components include MC4 connectors and cable glands, enabling straightforward installation and sealed cable entry. Operating temperature range and changeable short-circuit current settings make the unit suitable for many small commercial or residential string configurations.
Suitable for
Combining three PV strings into a centralized DC output for inverters
Rooftop solar installations requiring IP66-rated outdoor protection
Ground-mounted PV arrays where surge protection and isolators are needed
Key specifications
Model: HiSmart NV820146
Inputs: 3 strings; Outputs: 3 strings
Maximum DC voltage: 1000 V
DC switch: 6P, 1000 V, 50 A (1 pc), lockable with patented arc extinguishing chamber
DC SPD: 3P, 1000 V, 40 kA (3 pcs), response time \<25 ns
Short circuit current per input (Isc): configurable 15 A–30 A
Maximum output current: 50 A
Enclosure: polycarbonate; Protection: IP66, IK10; Flame rating: V0
Dimensions: 200 x 300 x 150 mm
Input cable glands: PG09 for 2.5–16 mm; Output glands: PG21 for 2.5–16 mm
Operating temperature: -25 °C to +60 °C
Included accessories: MC4 connectors and cable glands
Warranty: 24 months
How to use
Mount the combiner box on a suitable flat surface using the provided fixing points. Route PV string cables through the appropriate input glands (PG09) and secure MC4 connectors to the string inputs. Use the output glands (PG21) to route combined DC output cables to the inverter or downstream equipment. Ensure the DC switch is in the open position before making or breaking connections. Verify surge protection modules are correctly installed and that all cable entries are sealed to maintain IP66 protection.
Usage recommendations
Install and commission the combiner box in accordance with local electrical codes and the inverter manufacturer’s instructions. Confirm PV string Isc settings and cable sizes comply with system design. Perform periodic visual inspections of the enclosure, glands and connectors, and test the DC switch and SPD devices per maintenance schedules.

## FAQ

### How much does the HiSmart PV Combiner Box NV820146 DC 3in-3out cost, and is it available for purchase?

The price is 238.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 02.07.2026 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 HiSmart PV Combiner Box NV820146 DC 3in-3out 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 HiSmart 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 HiSmart 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/5237249/42025285_large.webp