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header-product CNC NV821778 Unipolar Junction Box 125A
10.99 €
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AiO.lv Other goods CNC

CNC NV821778 Unipolar Junction Box 125A

CNC NV821778 Unipolar Junction Box 125A Photo 1
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CNC NV821778 Unipolar Junction Box 125A
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Short description

The CNC NV821778 unipolar junction box with a 125A rating is a reliable electrical component designed for secure power distribution and cable connection in electrical panels and industrial applications. It ensures safe and efficient electrical management, facilitating organized wiring and reliable conductivity for professional electrical installations.
Available for order: 5 pcs.
Warranty: 2 Years
SKU: 12659944
Manufacturer: CNC
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1.99 €

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2b. Kengaraga str., Riga, Latvia, LV-1063
19.10.2026 {{selectedOffer.officeDeliveryString}}
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22.10.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 €
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Product information

Description

The CNC NV821778 unipolar junction box 125A is a reliable electrical component designed for secure power distribution and cable connection in electrical panels and industrial applications. It ensures safe and efficient electrical management, facilitating organized wiring and reliable conductivity for professional electrical installations. Equipped with a practical buckle, this electrical cable junction box is intended for cable connections and branches, proving extremely useful in modern electrical distribution systems.

Advantages

This junction box features a transparent cover that allows visual inspection to easily check the reliability of the cable connection without dismantling the setup. The housing is manufactured from flame-retardant PA nylon material, offering high resistance to high temperatures and strong insulating properties for maximum operational safety. The terminals are made of brass-plated material, ensuring they are strong, durable, corrosion-resistant, and capable of delivering excellent electrical conductivity.

Suitable for

  • Electrical distribution systems
  • Electrical panel assembly
  • DIN rail mounting applications
  • Industrial and commercial wiring organization

When it may not be suitable

This unipolar junction box is not designed for multi-phase direct connections without proper unipolar configuration, nor is it suitable for outdoor environments exposed directly to moisture without a dedicated weatherproof enclosure.

Key specifications

  • Nominal current: 125 A
  • Voltage rating: AC/DC 690-1000 V AIEC
  • Connected cable cross-sectional area: 1x (10-35 mm²) and 7x (2.5-16 mm²)
  • Mounting type: DIN rail
  • Terminal material: Brass plated
  • Body material: PA nylon
  • Safety class: V0 UL94 flame retardant
  • Dimensions: 30 x 76.5 x 45.5 mm

How to use

Mount the junction box securely onto a standard DIN rail inside an electrical panel or distribution enclosure. Ensure the power supply is completely disconnected before inserting any cables. Strip the cables to the appropriate length and insert them into the designated brass-plated terminals, tightening them securely according to the specified cross-sectional area limits. Close the transparent cover firmly to protect the connections and allow for future visual inspections.

What to consider before purchase

  • Verify that the 125A nominal current matches your electrical system requirements
  • Check that the cable cross-sectional dimensions fit the 1x (10-35 mm²) and 7x (2.5-16 mm²) terminal capacities
  • Ensure there is sufficient physical space on your DIN rail for the 30 x 76.5 x 45.5 mm dimensions

Usage recommendations

Always adhere to local electrical codes and guidelines, ensure power is turned off during installation, and regularly inspect the transparent cover for any signs of physical wear or loose connections.

Description

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Product comparison

The CNC NV821778 Unipolar Junction Box 125A is compared with similar unipolar distribution components including CNC NV821792 Unipolar Junction Box 250A, Unipolar Junction Box CNC NV821761 80A, CNC Unipolar Junction Box 400A NV821808, CNC Unipolar Junction Box 160A NV821785, and the Miton MT-P1280-D46 Junction Box. All selected products serve to facilitate secure power distribution and cable management, but they differ significantly in current capacity and target installation types.

⚙️ The specifications table below compares the brand, device type, current rating, and application environment to help you evaluate their technical capabilities in electrical setups.

ParameterCNC NV821778 125ACNC NV821792 250ACNC NV821761 80ACNC Unipolar Junction Box 400A NV821808CNC Unipolar Junction Box 160A NV821785Miton MT-P1280-D46Practical significance
BrandCNCCNCCNCCNCCNCMitonCNC options share a consistent engineering approach, whereas Miton provides an alternative manufacturer's accessory.
Device TypeUnipolar junction boxUnipolar junction boxUnipolar junction boxUnipolar junction boxUnipolar junction boxJunction boxCNC models are designed for unipolar power bus distribution, while Miton focuses on general wiring management.
Current Rating125 A250 A80 A400 A160 ANot specifiedCNC provides a scalable range from 80 A to 400 A, allowing precise matching to circuit load requirements.
Application ScopeElectrical panels, industrial applicationsIndustrial and commercial systemsResidential, commercial, and industrial installationsIndustrial systems, power panelsIndustrial and commercial distribution boardsProfessional, residential, and commercial projectsHigher-amp CNC models handle heavy industrial loads, while lower ratings suit standard distribution boards.

◎ The suitability table below evaluates which product version aligns best with specific installation requirements and use case scenarios.

Use caseRecommended productWhy
Standard power distribution in a 125 A panelCNC NV821778 Unipolar Junction Box 125ADelivers optimal current handling capacity for medium-scale professional and industrial electrical networks.
Handling higher electrical loads up to 250 A or 400 ACNC NV821792 Unipolar Junction Box 250A or CNC Unipolar Junction Box 400A NV821808Suited for heavy-duty industrial power systems requiring high-amperage current management.
Residential wiring or lower-load setups requiring 80 AUnipolar Junction Box CNC NV821761 80AIdeal for domestic and lighter commercial electrical setups with reduced current demands.
General cable organization and connection protectionMiton MT-P1280-D46 Junction BoxA versatile alternative for general wiring tasks not tied to unipolar power distribution blocks.
The CNC NV821778 Unipolar Junction Box 125A occupies an optimal mid-range position within the CNC unipolar block lineup, offering a reliable 125 A rating for professional distribution panels. It is more capable than lower-amp alternatives when handling growing electrical loads, yet more appropriate for standard setups than heavy-duty 250 A or 400 A units. Choose this product when your electrical installation requires secure, organized power management at a 125 A threshold.
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Customer questions

FAQ

How much does the CNC NV821778 Unipolar Junction Box 125A cost, and is it available for purchase?

The price is 10.99 € (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 19.10.2026 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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