# Circuit breaker EATON HN-B40/1 — overcurrent protection 6 kA, 40 A, single-pole

**URL:** https://aio.lv/en/product--eaton-hn-b401--12058166
**Data updated:** 2026-03-12 19:41 (EET)
**Category:** Power Sockets
**Manufacturer:** EATON
**Manufacturer code:** HN-B40/1
**EAN:** 9010238067257
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 11.49 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 9.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--eaton-hn-b401--12058166

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.89 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

EATON HN-B40/1 is a single-pole overcurrent circuit breaker with rated current 40 A and breaking capacity 6 kA. Designed for protection of electrical circuits against overloads and short circuits, it is suitable for residential and light commercial distribution boards. Provides reliable tripping and compact DIN-rail mounting for easy installation.

## Long description

EATON HN-B40/1 is a single-pole overcurrent protection device with a rated current of 40 A and a breaking capacity of 6 kA. Designed for installation on DIN rails in residential and light commercial distribution boards, this circuit breaker provides protection against overloads and short circuits while maintaining a compact footprint. Its single-pole design allows selective protection of phase conductors in single-phase circuits.
Advantages
The breaker offers reliable thermal-magnetic tripping to safeguard conductors and connected equipment from sustained overloads and abrupt short-circuit currents. Compact dimensions and standard DIN-rail compatibility simplify replacement and integration into existing panels. Its clearly marked current rating and ergonomic toggle facilitate safe manual operation and fast identification during maintenance.
Suitable for
 Protection of lighting and socket circuits in homes
 Single-phase branch circuits in small commercial installations
 Distribution boards where compact, DIN-rail mounted breakers are required
 Retrofit or replacement of single-pole breakers with similar ratings
Key specifications
 Poles: single-pole
 Rated current: 40 A
 Breaking capacity: 6 kA
 Tripping type: thermal-magnetic
 Mounting: DIN-rail
 Typical application: overload and short-circuit protection for single-phase circuits
How to use
Install the breaker on a compatible DIN rail in the distribution board following local electrical codes and safety practices. Connect the supply conductor to the input terminal and the load conductor to the output terminal, ensuring correct tightening torque on terminals. Verify the breaker is in the OFF position before energizing the circuit. After wiring, switch the device ON and test the protected circuit under normal load conditions to confirm correct operation.
Usage recommendations
Select a breaker rating appropriate to conductor size and expected load; verify coordination with upstream and downstream protective devices to ensure selective tripping where required. Periodically inspect connections for tightness and signs of overheating, and replace the device if mechanical damage or repeated nuisance trips occur.

## FAQ

### How much does the EATON HN-B40/1 circuit breaker 40A 6kA cost, and is it available for purchase?

The price is 11.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 9 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 13.07.2026 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 EATON 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 EATON 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/12058166/67543930_large.webp