# CNC NV821662 DC Miniature Circuit Breaker, 2P, 63A, Cat.A, 500VDC, 6kA

**URL:** https://aio.lv/en/product--cnc-nv821662--12659984
**Data updated:** 2026-09-10 04:20 (EEST)
**Category:** Other goods
**Manufacturer:** CNC
**Manufacturer code:** NV821662
**EAN:** 6942367503326
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 13.49 €
**Prices and availability valid until:** 2026-11-04 23:59
**Price without VAT (21%):** 11.15 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--cnc-nv821662--12659984

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.10.2026 | free |
| Pickup points | 16.10.2026 | 1.99 EUR |
| Courier delivery to door | 16.10.2026 | 4.99 EUR |

## Summary description

The CNC NV821662 DC miniature circuit breaker is designed to provide reliable overcurrent and short-circuit protection for electrical systems operating at 500VDC. Featuring a 2-pole configuration, a 63A rated current, and a 6kA breaking capacity, this Cat.A circuit breaker ensures safety and stability in photovoltaic systems, energy storage, and industrial DC applications. It is engineered for secure installation and dependable performance in demanding direct current environments.

## Long description

The CNC NV821662 DC Miniature Circuit Breaker is a reliable protective device designed for direct current electrical systems operating up to 500VDC. Featuring a 2-pole configuration, a 63A rated current, and a 6kA breaking capacity, this Cat.A circuit breaker ensures high safety and stability standards in demanding applications such as photovoltaic installations, energy storage, industrial setups, and communication systems. Built with modular construction, it allows for straightforward installation on a standard 35mm DIN rail and includes clear contact position indication with red for closed and green for opened. It complies with IEC/EN 60947-2 standards and EU RoHS requirements, making it a dependable component for electrical isolation, overload, and short-circuit protection.
Advantages
This DC miniature circuit breaker provides robust thermomagnetic tripping mechanism performance to protect electrical circuits effectively against overloads and short circuits. Its modular design simplifies integration into existing distribution boards and control panels via standard DIN rail mounting. The unit offers high mechanical and electrical endurance, ensuring long-term operational reliability in continuous-use environments. With a rated insulation voltage of 1200V and impulse withstand voltage of 4000V, it delivers enhanced safety margins. Furthermore, the visual contact position indicator allows for quick and safe status verification during maintenance operations.
Suitable for
Photovoltaic solar systems and inverter protection
Energy storage and battery management systems
Industrial direct current electrical distribution
Civil and commercial electrical installations
Communication power supply systems
When it may not be suitable
This circuit breaker is specifically engineered for direct current applications and is not suitable for alternating current AC mains installations where frequency and zero-crossing characteristics differ. It should not be used in environments exceeding its specified rated voltage of 500VDC or rated current of 63A, nor in locations requiring higher environmental ingress protection without a suitable weatherproof enclosure.
Key specifications
Number of poles: 2
Nominal current: 63A
Rated voltage: DC 500V
Ultimate breaking capacity: 6000A
Tripping type: Thermomagnetic
Class: A
Insulation voltage: 1200V
Rated impulse withstand voltage: 4000V
Wire cross-section area: 2.5 - 25 mm²
Mounting: DIN rail 35mm
Operating temperature range: -35°C to +70°C
Safety class: IP20
How to use
Installation of the DC miniature circuit breaker must be performed by a qualified electrician in accordance with applicable electrical codes and standards. Mount the device securely onto a standard 35mm DIN rail inside a suitable distribution enclosure. Connect the DC power cables to the appropriate terminals, ensuring the wire cross-section falls within the permitted 2.5 to 25 mm² range and is tightened to the recommended torque to secure reliable electrical contact. Verify the system voltage and polarity before energizing the circuit. Utilize the toggle switch to manually operate the circuit, and rely on the mechanical window indicator to confirm the open or closed contact status.
What to consider before purchase
Verify that your system operating voltage does not exceed 500VDC and current does not exceed 63A
Ensure compatibility with standard 35mm DIN rail mounting inside your enclosure
Check that the connected wire cross-sections are within the 2.5 to 25 mm² specification
Confirm that the application involves direct current rather than alternating current
Verify operating environmental conditions against the specified temperature and IP20 rating limits
Installation and maintenance should be carried out strictly by professional personnel in compliance with local safety regulations. Periodically inspect the circuit breaker and terminal connections for signs of wear, thermal stress, or loose wiring to maintain optimal system performance and safety.

## FAQ

### How much does the CNC NV821662 DC Miniature Circuit Breaker 2P 63A 500VDC cost, and is it available for purchase?

The price is 13.49 € (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 13.10.2026 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 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/12659984/69924259_large.webp