# CNC NV821563 Miniature Circuit Breaker 3-Pole 40A C-Curve 6kA

**URL:** https://aio.lv/en/product--cnc-nv821563--12659970
**Data updated:** 2026-09-10 04:20 (EEST)
**Category:** Other goods
**Manufacturer:** CNC
**Manufacturer code:** NV821563
**EAN:** 6942034315801
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.49 €
**Prices and availability valid until:** 2026-10-29 23:59
**Price without VAT (21%):** 6.19 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--cnc-nv821563--12659970

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.10.2026 | free |
| Pickup points | 12.10.2026 | 1.99 EUR |
| Courier delivery to door | 12.10.2026 | 4.99 EUR |

## Summary description

The CNC NV821563 miniature circuit breaker is a reliable 3-pole electrical protection device rated at 40A with a C-curve tripping characteristic and a 6kA breaking capacity. Designed for residential, commercial, and industrial electrical installations, it effectively protects circuits against overloads and short circuits, ensuring safe power distribution and equipment longevity.

## Long description

The CNC NV821563 miniature circuit breaker is a reliable 3-pole electrical protection device designed to safeguard residential, commercial, and industrial electrical installations. Rated at 40A with a C-curve tripping characteristic and a 6kA breaking capacity, this device effectively protects circuits against overloads and short circuits, ensuring safe power distribution and equipment longevity. It features flame retardant construction with high temperature and impact resistance, alongside anti-mistake contact terminal blocks and clear contact position indication where red indicates closed and green indicates opened.
Advantages
This miniature circuit breaker provides robust dual protection against both electrical overloads and short circuits to prevent damage to connected wiring and equipment. Its durable housing offers excellent flame retardancy, high temperature resistance, and impact resistance for enhanced operational safety. The device supports flexible connection from both the top and bottom using cables or pin-type busbars, accommodating wire cross-sectional areas up to 25mm². With a mechanical life of 20000 cycles and an electrical life of 8000 cycles, it ensures long-term dependable performance.
Suitable for
Residential electrical distribution panels
Commercial building sub-circuits
Light industrial power control systems
Protecting three-phase electrical loads up to 40A
When it may not be suitable
This circuit breaker is not suitable for main incoming supplies requiring currents higher than 40A or applications exceeding its 6kA breaking capacity. It should not be installed in outdoor environments without an appropriate weatherproof enclosure, as it features an IP20 safety class.
Key specifications
Number of poles: 3
Rated current: 40 A
Tripping curve: C
Rated voltage: AC 400 V
Rated breaking capacity: 6000 A
Mechanical life: 20000 operations
Electrical life: 8000 operations
Ingress protection: IP20
Mounting: 35mm DIN rail EN 60715
How to use
Installation should be performed exclusively by a qualified electrician in compliance with local electrical codes and standards. The circuit breaker is designed for quick and secure mounting onto a standard 35mm DIN rail using its fast clip device. Connect incoming and outgoing conductors to the designated terminals, ensuring proper tightening to accommodate wire sizes up to 25mm². Verify that the terminal connections are secure and check the visual contact position indicator before energizing the circuit.
What to consider before purchase
Verify that the 40A rated current matches your load requirements
Confirm that your electrical system voltage aligns with AC 400 V
Check available space in your distribution board for the 3-pole module dimensions
Ensure operating temperatures will remain within the -5°C to +40°C range
Always disconnect power to the distribution board before attempting any installation, inspection, or maintenance work. Periodically check terminal connections for tightness to maintain optimal electrical contact.

## FAQ

### How much does the CNC NV821563 3P 40A Circuit Breaker cost, and is it available for purchase?

The price is 7.49 € (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 07.10.2026 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/12659970/69924244_large.webp