# Hager MBS340 Circuit Breaker, 3-Pole, Type B, 40A

**URL:** https://aio.lv/en/product--hager-mbs340--3421048
**Data updated:** 2026-05-18 02:49 (EEST)
**Category:** Power Sockets
**Manufacturer:** Hager
**Manufacturer code:** MBS340
**EAN:** 3250614314926
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 38.49 €
**Prices and availability valid until:** 2026-07-30 23:59
**Price without VAT (21%):** 31.81 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hager-mbs340--3421048

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 20.07.2026 | free |
| Pickup points | 23.07.2026 | 1.89 EUR |
| Courier delivery to door | 23.07.2026 | 4.99 EUR |

## Summary description

The Hager MBS340 is a 3-pole miniature circuit breaker designed for reliable electrical circuit protection. Featuring a 40A rated current and Type B tripping characteristic, this device ensures safety in residential and commercial installations. It utilizes QuickConnect technology for efficient mounting and occupies 3 modules of space, providing a compact and robust solution for modern electrical distribution systems.

## Long description

The Hager MBS340 is a high-quality 3-pole miniature circuit breaker engineered to provide reliable protection for electrical circuits in both residential and commercial environments. With a 40A rated current and a Type B tripping characteristic, this device is designed to detect and interrupt overcurrents and short circuits effectively, ensuring the safety of connected equipment and wiring. Its compact design occupies 3 modules of space, making it an ideal choice for modern distribution boards where space efficiency is a priority.
Advantages
This circuit breaker features advanced QuickConnect technology, which significantly simplifies the installation process by allowing for rapid and secure wire connections without the need for traditional screw terminals. The robust construction ensures long-term durability and consistent performance under standard operating conditions. By utilizing a 3-pole configuration, it provides comprehensive protection for three-phase electrical systems, offering a reliable solution for maintaining electrical integrity in various infrastructure projects.
Suitable for
Residential electrical distribution boards
Commercial building power systems
Three-phase lighting and power circuits
Protection of standard electrical appliances and wiring
This device may not be suitable for applications requiring a different tripping characteristic, such as Type C or D, which are better suited for circuits with high inrush currents like large motors or transformers. It is also not intended for use in environments exceeding its rated breaking capacity or in specialized industrial settings that require higher fault current protection.
Key specifications
Rated current: 40A
Number of poles: 3
Tripping characteristic: Type B
Mounting technology: QuickConnect
Module width: 3 modules
To install the Hager MBS340, ensure the power supply is completely disconnected from the distribution board. The device is designed for DIN rail mounting; simply snap the unit onto the rail until it clicks into place. Use the QuickConnect terminals to insert the conductors according to the wiring diagram of your electrical system, ensuring that each connection is firm and secure. Once installed, verify that the breaker is in the correct position before restoring power to the circuit.
What to consider before purchase
Verify that the 40A rating matches the requirements of your circuit load
Ensure the 3-pole configuration is compatible with your three-phase electrical installation
Confirm that the Type B tripping characteristic is appropriate for your specific connected loads
Check the available space in your distribution board to accommodate the 3-module width
Usage recommendations: Always ensure that the installation is performed by a qualified electrician in accordance with local electrical regulations. Periodically inspect the circuit breaker for any signs of physical damage or overheating to maintain optimal safety and performance.

## Specifications

| Feature | Value |
|---|---|
| Type | Type B |
| Storage temperature (T-T) | -25 - 80 |

### Power

| Feature | Value |
|---|---|
| Rated current | 40 A |

### Features

| Feature | Value |
|---|---|
| Operating temperature (T-T) | -25 - 60 |
| Modules quantity (max) | 3 module(s) |
| Number of poles | 3 |

### Weight & dimensions

| Feature | Value |
|---|---|
| Height | 83.4 mm |
| Width | 52.5 mm |
| Depth | 70 mm |

## FAQ

### How much does the Hager MBS340 Circuit Breaker 3-Pole 40A cost, and is it available for purchase?

The price is 38.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 20.07.2026 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. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/3421048/58378399_large.webp