Hager NBN340 Miniature Circuit Breaker 3P 40A

Name: Hager NBN340 Miniature Circuit Breaker NBN340
Brand: Hager
SKU: 12446239
Price: 58.49 EUR
Availability: InStock

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Short description

The Hager NBN340 is a 3-pole miniature circuit breaker designed for reliable electrical circuit protection. It features a rated current of 40 A and operates at a rated voltage of 500 V with a frequency range of 50-60 Hz. This 3-module wide device is engineered for industrial and residential electrical distribution systems, ensuring safety by preventing overcurrent and short-circuit damage. Its compact design allows for efficient installation in standard distribution boards.

Available for order: 5 pcs.

Warranty: 2 Years

SKU: 12446239

Manufacturer: Hager

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Deliver the order:

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2b. Kengaraga str., Riga, Latvia, LV-1063

06.07.2026 {{selectedOffer.officeDeliveryString}}

free

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From 4.99 €

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Product information

Description

The Hager NBN340 is a high-quality 3-pole miniature circuit breaker engineered to provide robust protection for electrical circuits in both residential and industrial environments. Designed to handle a rated current of 40 A and a rated voltage of 500 V, this device effectively safeguards electrical systems against the risks of overcurrent and short-circuit damage. Its compact 3-module wide construction ensures it fits seamlessly into standard distribution boards, making it a reliable component for modern electrical infrastructure.

Advantages

This circuit breaker offers exceptional reliability and durability, ensuring consistent performance in demanding electrical distribution systems. The precision engineering behind the Hager NBN340 allows for rapid response times during fault conditions, which helps prevent damage to connected equipment and wiring. Its standardized dimensions facilitate easy integration into existing setups, while the robust build quality ensures long-term operational safety and efficiency.

Suitable for

Residential electrical distribution boards
Industrial power supply systems
Protection of three-phase electrical circuits
Commercial building infrastructure

This device may not be suitable for applications requiring a different current rating or for systems exceeding the specified voltage limits. It is not intended for use in environments with high moisture or extreme environmental conditions without appropriate protective enclosures.

Key specifications

Rated current: 40 A
Rated voltage: 500 V
Number of poles: 3P
Frequency range: 50-60 Hz
Module width: 3 modules
Dimensions: 83 mm x 52.5 mm x 70 mm
Ingress protection: IP20

How to use

The Hager NBN340 should be installed by a qualified electrician in accordance with local electrical regulations. It is designed for mounting onto a standard DIN rail within a distribution board. Ensure that the power supply is disconnected before beginning the installation process. Once mounted, connect the incoming and outgoing cables to the appropriate terminals, ensuring all connections are tightened to the manufacturer's specified torque settings to prevent overheating.

What to consider before purchase

Verify that the 40 A current rating matches your circuit requirements.
Ensure your distribution board has 3 modules of available space.
Confirm that the system voltage does not exceed 500 V.
Check that the installation environment meets the IP20 protection rating requirements.

Usage recommendations: Regularly inspect the circuit breaker for any signs of physical damage or discoloration. It is recommended to perform a periodic functional test to ensure the tripping mechanism remains responsive and effective for continued safety.

All features

Circuit breaker type:: Miniature circuit breaker

Power

Rated current:: 40 A
Input frequency:: 50 - 60
Rated voltage:: 500 V

Features

Operating temperature (T-T):: -25 - 70
Modules quantity (max):: 3 module(s)
Number of poles:: 3P

Weight & dimensions

Height:: 83 mm
Width:: 52.5 mm
Depth:: 70 mm

Packaging data

Quantity per pack:: 1 pc(s)

Design

International Protection (IP) code: Device protection rating against dust and water according to the international IP standard.: IP20

Description

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Customer questions

FAQ

How much does the Hager NBN340 Miniature Circuit Breaker 3P 40A cost, and is it available for purchase?

The price is 58.49 € (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 06.07.2026 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 Hager 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 Hager 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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