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header-product Miniature Circuit Breaker CNC NV821440 1-Pole 25A C-Curve 6kA
3.99 €

Miniature Circuit Breaker CNC NV821440 1-Pole 25A C-Curve 6kA

CNC NV821440 1P 25A C 6kA Miniature Circuit Breaker Photo 1

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Miniature Circuit Breaker CNC NV821440 1-Pole 25A C-Curve 6kA

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Miniature Circuit Breaker CNC NV821440 1-Pole 25A C-Curve 6kA

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Short description

Miniature Circuit Breaker by CNC, model NV821440, designed for electrical circuit protection. This 1-pole device features a 25A rated current, C-curve tripping characteristic, and a 6kA breaking capacity. Ideal for safeguarding residential and commercial electrical installations against overloads and short circuits, ensuring reliable performance and safety in power distribution systems.
Available for order: 5 pcs.
Warranty: 2 Years
SKU: 12659960
Manufacturer: CNC
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.99 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
05.10.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
08.10.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 €
Parcel couriers
Unisend LV / Venipak Pickup LV / Venipak Locker LV / DPD Paku skapis / Omniva LV / Latvijas Pasts pakomāts / Latvijas Pasts nodaļa
08.10.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.99 €
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Product information

Description

The Miniature Circuit Breaker CNC NV821440 1-Pole 25A C-Curve 6kA is a dependable electrical protection device engineered to safeguard residential and commercial power distribution systems. This 1-pole miniature circuit breaker is designed to disconnect electrical circuits automatically during overload and short-circuit events, preventing damage to wiring and connected equipment. Constructed with flame-retardant and high-temperature resistant materials, it offers high impact resistance and dependable long-term operation. The device features an anti-mistake contact terminal block and a clear contact position indicator with red for closed and green for opened states.

Advantages

This miniature circuit breaker provides dual protection against both overloads and short circuits to ensure high electrical safety in various environments. Its robust construction utilizes flame-retardant materials with high temperature and impact resistance for enhanced durability. The visual contact position indicator allows for quick and easy status verification. Furthermore, it supports flexible installation options with cable or pin-type busbar connections from either the top or bottom, and mounts easily onto standard DIN rails.

Suitable for

  • Safeguarding residential electrical installations
  • Protecting commercial power distribution systems
  • Overload and short-circuit protection for standard loads
  • Switchboards and electrical distribution panels

When it may not be suitable

This miniature circuit breaker is not designed for industrial applications requiring breaking capacities above 6kA or operating outside the specified temperature range. It is also unsuitable for direct current applications unless explicitly rated for DC use.

Key specifications

  • 1-pole configuration
  • 25 A rated current
  • C tripping curve
  • 6000 A rated breaking capacity
  • AC 230/400 V rated voltage
  • 500 V insulation voltage
  • IP20 safety class
  • DIN rail EN 60715 installation

How to use

Installation should be performed by a qualified electrician in accordance with local electrical codes and standards. Mount the device securely onto a standard 35mm DIN rail using the fast clip mechanism. Connect the incoming and outgoing cables or pin-type busbars securely to the top or bottom terminals, ensuring the wire cross-sectional area does not exceed 25mm². Verify connections before restoring power. Use the toggle switch to manually operate the circuit, and check the indicator window to confirm the contact position.

What to consider before purchase

  • Verify that the 25A current rating and C-curve match your specific load requirements
  • Ensure the 6kA breaking capacity meets your electrical system's prospective fault current
  • Confirm compatibility with standard 35mm DIN rails and available panel space

Usage recommendations

Regularly inspect the circuit breaker for any signs of physical damage, discoloration, or loose connections. Test the operational status periodically and ensure the operating environment remains within the recommended temperature limits of -5°C to +40°C.

Description

Machine translation. Load original

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Product comparison

Comparing the Miniature Circuit Breaker CNC NV821440 1-Pole 25A C-Curve 6kA with similar CNC miniature circuit breakers shows that all options are designed to protect residential and commercial electrical installations against overloads and short circuits. They share identical 6kA breaking capacities, C-curve tripping characteristics, and pole configurations (except for one two-pole model). The primary differences lie in the rated current and pole count, which define the suitable electrical load capacity and wiring application.

⚙️ The specifications comparison table below evaluates key characteristics including pole count, rated current, tripping curve, breaking capacity, and practical purpose.

ParameterCNC NV821440 (25A)CNC NV821464 (40A)CNC NV821457 (32A)CNC NV821426 (16A)CNC NV821471 (50A)CNC NV821518 (25A, 2-Pole)Practical significance
Device type1-Pole miniature circuit breaker1-Pole miniature circuit breaker1-Pole miniature circuit breaker1-Pole miniature circuit breaker1-Pole miniature circuit breaker2-Pole miniature circuit breakerPole count dictates circuit separation: 1-pole versions manage single phase lines, while 2-pole versions disconnect both phase and neutral simultaneously.
Rated current25A40A32A16A50A25ACurrent ratings must match cable gauge and connected load to prevent overheating and ensure safety.
Tripping curveC-CurveC-CurveC-CurveC-CurveC-CurveClass CC-curve provides standard protection with moderate inrush current tolerance, suitable for general applications.
Breaking capacity6kA6kA6kA6kA6kA6kAAbility to safely interrupt short-circuit currents up to 6kA ensures reliable protection in standard distribution boards.

◎ The suitability table below outlines specific use cases and user requirements to help determine the most appropriate model for your installation needs.

Use caseRecommended productWhy
Protecting standard medium-load circuits such as dedicated appliance linesMiniature Circuit Breaker CNC NV821440 1-Pole 25A C-Curve 6kAThe 25A rating is ideal for branch circuits with moderate power demands in residential and commercial spaces.
Safeguarding main feeds or high-draw equipment like heavy-duty appliancesCNC NV821464 1-Pole 40A C-Curve 6kA or CNC NV821471 Miniature Circuit Breaker, 1-Pole, 50A, C Curve, 6kA Breaking CapacityHigher current ratings accommodate larger power requirements without nuisance tripping.
Standard lighting and general outlet circuit protectionMiniature Circuit Breaker CNC NV821426 1-Pole 16 Amps C Characteristic 6kA Breaking CapacityThe 16A rating serves as the standard choice for most basic household and commercial wiring circuits.
Installations requiring complete isolation of both phase and neutral linesCNC NV821518 2-Pole 25A Miniature Circuit Breaker Class C 6kAThe two-pole design provides double-pole disconnection for enhanced safety during maintenance.
The Miniature Circuit Breaker CNC NV821440 1-Pole 25A C-Curve 6kA is well-suited for protecting medium-load circuits and appliance lines requiring a 25A rating. Choose this option if your electrical load aligns with its specifications; for higher loads, lower ratings, or dual-pole isolation needs, select the corresponding alternative from the lineup.
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Customer reviews

Customer questions

FAQ

How much does the CNC NV821440 1P 25A C 6kA Miniature Circuit Breaker cost, and is it available for purchase?

The price is 3.99 € (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 05.10.2026 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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.
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14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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