# Hager CFA440D residual current circuit breaker 40 A 230/400 V 4-pole

**URL:** https://aio.lv/en/product--hager-cfa440d--3437120
**Data updated:** 2026-07-24 04:29 (EEST)
**Category:** Other goods
**Manufacturer:** Hager
**Manufacturer code:** CFA440D
**EAN:** 3250611610199
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 101.49 €
**Prices and availability valid until:** 2026-08-24 23:59
**Price without VAT (21%):** 83.88 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hager-cfa440d--3437120

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 10.08.2026 | free |
| Pickup points | 13.08.2026 | 1.79 EUR |
| Courier delivery to door | 13.08.2026 | 11.57 EUR |

## Summary description

Hager CFA440D four-pole residual current circuit breaker designed for electrical safety and protection against earth leakage currents. Features an input current of 40 A and supports an input voltage of 230/400 V with a 300 mA sensitivity Type A rating. Finished in grey and white, this modular device is ideal for residential, commercial, and industrial electrical distribution boards to safeguard circuits from faults.

## Long description

The Hager CFA440D four-pole residual current circuit breaker is designed for electrical safety and protection against earth leakage currents in residential, commercial, and industrial electrical distribution boards. Featuring an input current of 40 A and supporting an input voltage of 230/400 V with a 300 mA sensitivity Type A rating, this modular device safeguards electrical circuits from faults. It complies with EN 61008-1, DIN EN 61008-2-1, and VDE 0664 standards, ensuring reliable operation and enhanced safety for modern power distribution systems.
Advantages
This residual current circuit breaker offers dependable protection against earth leakage currents, helping to prevent electrical hazards and equipment damage. It features IP2x touch protection according to DIN VDE 0106 Part 100 for safer handling during installation and maintenance. The device allows for the tool-free retrofitting of additional auxiliary equipment, improving setup flexibility. BiConnect terminals at the bottom and wire-insertion protection terminals ensure secure and straightforward cable connections. An external blue test button allows for quick functional verification, and direct labeling space on the housing facilitates clear circuit identification.
Suitable for
Residential electrical distribution boards
Commercial building power systems
Industrial electrical installations
Protection against earth leakage currents
Circuits requiring Type A residual current monitoring
When it may not be suitable
This device may not be suitable for installations requiring a lower leakage current sensitivity, such as 10 mA or 30 mA, since it features a 300 mA sensitivity rating intended for specific protection requirements. It is also not designed for direct use in circuits exceeding its 40 A rated current or incompatible voltage specifications.
Key specifications
4-pole configuration
Rated current: 40 A
Rated voltage: 230/400 V
Residual current sensitivity: 300 mA, Type A
Touch protection: IP2x
Compliant with EN 61008-1, DIN EN 61008-2-1, VDE 0664
How to use
Installation should be performed by a qualified electrician in accordance with applicable electrical codes and safety standards. The device is mounted onto standard DIN rails within an electrical distribution board. Connect the supply and load cables securely to the appropriate terminals, utilizing the BiConnect bottom terminals and wire-insertion protection. After installation, test the device periodically using the external blue test button to verify correct mechanical and electrical operation.
What to consider before purchase
Verify that the 40 A rated current and 230/400 V voltage match your system requirements
Confirm that a 300 mA Type A residual current sensitivity aligns with your circuit protection needs
Ensure compatibility with existing distribution board space and mounting rails
Check local electrical regulations regarding the use of residual current devices
Usage recommendations
Regularly test the residual current circuit breaker using the external blue test button to ensure ongoing operational reliability. Periodically inspect terminal connections and the overall physical condition of the device during routine electrical maintenance checks.

## Specifications

| Feature | Value |
|---|---|
| Storage temperature (T-T) | -55 - 70 |
| Operating temperature (T-T) | -25 - 40 |
| Input voltage | 230/400 |
| Product colour | Grey, White |
| Input current | 40 |
| Number of poles | 4 |

## FAQ

### How much does the Hager CFA440D Circuit Breaker cost, and is it available for purchase?

The price is 101.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 63 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 10.08.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can Hager CFA440D 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 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/3437120/58387234_large.webp