# Hager MBN320 3-pole circuit breaker, 20 A nominal current, 50 Hz AC input frequency

**URL:** https://aio.lv/en/product--hager-mbn320--1931479
**Data updated:** 2026-07-24 04:29 (EEST)
**Category:** Other goods
**Manufacturer:** Hager
**Manufacturer code:** MBN320
**EAN:** 3250614310416
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 49.99 €
**Prices and availability valid until:** 2026-08-23 23:59
**Price without VAT (21%):** 41.31 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hager-mbn320--1931479

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.08.2026 | free |
| Pickup points | 12.08.2026 | 1.79 EUR |
| Courier delivery to door | 12.08.2026 | 4.99 EUR |

## Summary description

Hager MBN320 3-pole circuit breaker designed for electrical installation protection. Features a nominal current of 20 A and supports a 50 Hz AC input frequency. Suitable for residential and commercial electrical distribution systems to safeguard circuits against overcurrent and short circuits.

## Long description

The Hager MBN320 3-pole circuit breaker is a reliable electrical protection device engineered to safeguard residential and commercial distribution systems. Designed with a 20 A nominal current rating and supporting a 50 Hz alternating current input frequency, this 3-pole circuit breaker effectively disconnects power during overcurrent and short-circuit events. It integrates seamlessly into standard electrical enclosures, offering dependable performance for multi-phase circuits.
Advantages
This Hager circuit breaker provides robust protection against electrical faults, helping to prevent equipment damage and reduce fire hazards in wiring systems. Its standard three-pole configuration allows for simultaneous disconnection of all phases, ensuring enhanced safety during maintenance or fault conditions. Built to meet stringent industry standards, it offers consistent operation and long-term durability in various electrical installations.
Suitable for
Residential electrical distribution boards
Commercial building sub-distribution systems
Three-phase motor and equipment protection
Safeguarding standard wiring against overloads and short circuits
When it may not be suitable
This device is not designed for direct current (DC) electrical systems or applications requiring a nominal current rating other than 20 A. It should not be used in environments exceeding its specified short-circuit breaking capacity without appropriate backup protection.
Key specifications
3-pole configuration
20 A nominal current
50 Hz AC input frequency
Designed for electrical installation protection
How to use
Installation should be performed exclusively by a qualified electrician in compliance with local electrical codes and safety regulations. The circuit breaker is mounted onto a standard DIN rail within a suitable enclosure. Ensure all terminal screws are securely tightened to the manufacturer's recommended torque specifications to prevent loose connections before energizing the circuit.
What to consider before purchase
Verify that the 20 A nominal current matches the electrical load requirements of your circuit
Confirm compatibility with your existing distribution board and DIN rail mounting space
Check that the 3-pole setup aligns with your phase requirements
Usage recommendations: Regularly inspect the installation for signs of wear or thermal damage, and periodically test the functionality of the distribution system in accordance with local safety standards.

## Specifications

| Feature | Value |
|---|---|
| Nominal current output | 20 A |
| AC input frequency | 50 |
| Number of modules | 3 |
| Number of poles | 3P |

## FAQ

### How much does the Hager MBN320 Circuit Breaker cost, and is it available for purchase?

The price is 49.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 100 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 07.08.2026 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/1931479/58129469_large.webp