# Eaton NZMB1-A50 3-Pole Circuit Breaker, 50A, 440V

**URL:** https://aio.lv/en/product--eaton-259076--4493597
**Data updated:** 2026-05-18 02:44 (EEST)
**Category:** Power Sockets
**Manufacturer:** EATON
**Manufacturer code:** 259076
**EAN:** 4015082590765
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 237.49 €
**Prices and availability valid until:** 2026-08-07 23:59
**Price without VAT (21%):** 196.27 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--eaton-259076--4493597

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.07.2026 | free |
| Pickup points | 30.07.2026 | 1.89 EUR |
| Courier delivery to door | 30.07.2026 | 4.99 EUR |

## Summary description

The Eaton NZMB1-A50 is a reliable 3-pole circuit breaker designed for industrial and commercial electrical distribution systems. It features a rated current of 50 A and a rated operational voltage of 440 V. With a breaking capacity of 30 kA, this device ensures effective protection against overloads and short circuits. It is rated IP20 for protection against solid objects and is suitable for standard panel mounting.

## Long description

The Eaton NZMB1-A50 is a robust 3-pole circuit breaker engineered for reliable electrical distribution in industrial and commercial environments. This device provides essential protection for electrical circuits by monitoring current flow and interrupting power in the event of an overload or short circuit. Its compact design and standard mounting capabilities make it a versatile component for integration into various electrical panels and distribution boards.
Advantages
This circuit breaker offers high operational reliability and safety for electrical systems. With a breaking capacity of 30 kA, it effectively handles significant fault currents, preventing damage to downstream equipment and infrastructure. The 3-pole configuration ensures simultaneous disconnection of all phases, providing a secure isolation method during maintenance or fault conditions. Its durable construction is designed to withstand the rigors of continuous operation in demanding professional settings.
Suitable for
Industrial electrical distribution systems
Commercial building power management
Protection of electrical motors and machinery
Main or sub-distribution panel installations
This device may not be suitable for residential applications where specific miniature circuit breaker standards are required, or in environments with extreme moisture or dust, as it carries an IP20 rating. It is not intended for use in high-voltage transmission networks or specialized hazardous locations without additional protective enclosures.
Key specifications
Number of poles: 3
Rated current: 50 A
Rated operational voltage: 440 V
Breaking capacity: 30 kA
Protection rating: IP20
Mounting type: Panel mount
Installation should be performed by a qualified electrician in accordance with local electrical codes. The device is mounted onto a standard panel surface. Ensure that all cable connections are tightened to the manufacturer's specified torque settings to prevent overheating and ensure optimal electrical contact. Before commissioning, verify that the circuit breaker is compatible with the system voltage and load requirements.
What to consider before purchase
Verify that the 50 A current rating matches your circuit requirements
Ensure the 440 V operational voltage is compatible with your power supply
Confirm that the installation environment meets the IP20 protection standard
Check available space in your distribution panel for a 3-pole device
Usage recommendations: Regularly inspect the circuit breaker for signs of wear or thermal damage. Test the mechanical operation periodically to ensure the switching mechanism remains functional. Always disconnect the power supply before performing any maintenance or inspection on the electrical panel.

## Specifications

| Feature | Value |
|---|---|
| Storage temperature (T-T) | -40 - 70 |
| Breaking capacity | 30000 A |
| Pollution degree | 3 |

### Power

| Feature | Value |
|---|---|
| Rated current | 50 A |
| Rated voltage | 440 V |

### Weight & dimensions

| Feature | Value |
|---|---|
| Width | 90 mm |
| Depth | 84.5 mm |

### Design

| Feature | Value |
|---|---|
| Certification | IEC/EN 60947 |
| Product colour | Black, White |
| International Protection (IP) code | IP20 |

### Features

| Feature | Value |
|---|---|
| Operating temperature (T-T) | -25 - 70 |
| Number of poles | 3 |

## FAQ

### How much does the Eaton NZMB1-A50 3-Pole Circuit Breaker cost, and is it available for purchase?

The price is 237.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 27.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can Eaton NZMB1-A50 3-Pole Circuit Breaker be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/4493597/58998684_large.webp