# DC isolator switch HiSmart NV821396 2-pole 32A 1000V DC

**URL:** https://aio.lv/en/product--hismart-nv821396--10742984
**Data updated:** 2025-12-30 10:01 (EET)
**Category:** Solar Panel Accessories
**Manufacturer:** HiSmart
**Manufacturer code:** NV821396
**EAN:** 9990000821396
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 39.99 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 33.05 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hismart-nv821396--10742984

## 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

DC isolator switch HiSmart NV821396 is a 2-pole cut-off device rated at 32 A and 1000 V DC. It provides a safe manual disconnection point for photovoltaic arrays, battery banks and other DC systems, enabling maintenance and emergency shutdown. Compact and robust, it is suited for residential and commercial solar installations requiring reliable DC isolation.

## Long description

HiSmart NV821396 DC isolator switch is a compact manual disconnect device for photovoltaic arrays, battery banks and other low-voltage DC systems. Rated for up to 1000 V DC and 32 A, this pre-wired isolator provides a reliable means to isolate the DC circuit for maintenance or emergency shutdown. The unit is designed for residential and commercial solar PV installations and meets relevant standards for DC-PV applications.
Advantages
The isolator features a 2-pole design wired with factory-fitted MC4 connectors for faster and safer installation and to reduce the risk of loose wiring. It is fire-retardant and UV-resistant, includes a lockable off position and a breathing valve, and achieves an arcing time of less than 3 ms to ensure effective disconnection. Certified to IEC/EN 60947-3 and AS/NZS standards, it supports reliable, standards-compliant DC isolation.
Suitable for
Residential rooftop solar PV systems
Commercial solar installations
Battery bank isolation and maintenance
DC circuits requiring a manual emergency shut-off
Key specifications
Model: HiSmart NV821396
Poles: 2 (pre-wired with MC4)
Rated voltage: DC 1000 V
Rated current options: 16 A / 25 A / 32 A (maximum 32 A)
Insulation voltage (Ui): DC 1200 V
Rated impulse voltage (Uimp): 8 kV
Mechanical life: 15,000 cycles; Electrical life: 1,000 cycles
Wire cross-section: max 4–16 mm²; connection torque M4: 1.2–1.8 Nm
Disconnection (arcing) time: \< 3 ms
Protection: IP66 housing, IP20 switch
Operating temperature: -40 °C to 85 °C
Dimensions: 188 x 99 x 108 mm
Certificates: IEC/EN 60947-3, AS/NZS 5033:2014; DC-21B, DC-PV2
Warranty: 24 months
How to use
Mount the DC isolator near the PV array or battery bank following local electrical codes. Connect DC conductors using the pre-wired MC4 connectors and secure the M4 terminal screws to the recommended torque (1.2–1.8 Nm) for any direct wiring. Use the handle to switch to the off position before performing maintenance or service; the device can be locked in the off position to prevent accidental reconnection. Ensure the breathing valve is unobstructed to allow safe venting.
Usage recommendations
The device should be installed and commissioned by a qualified electrician. Verify system voltage and current ratings match the isolator’s specifications before installation. Regularly inspect connectors and housing for damage, ensure the MC4 connections remain tight, and observe the manufacturer’s maintenance intervals to preserve safe operation.

## FAQ

### How much does the DC isolator switch HiSmart NV821396 cost, and is it available for purchase?

The price is 39.99 € (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 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. All transactions are 100% secure and encrypted.

### 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/10742984/59908661_large.webp