# Hager CFC440J Residual Current Circuit Breaker 4-Pole 40A 0.3A Type AC

**URL:** https://aio.lv/en/product--hager-cfc440j--12683193
**Data updated:** 2026-09-19 04:25 (EEST)
**Category:** Other goods
**Manufacturer:** Hager
**Manufacturer code:** CFC440J
**EAN:** 3250611619741
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

Hager CFC440J residual current circuit breaker featuring a 4-pole design, 40A current rating, and 0.3A sensitivity of type AC. This modular electrical protection device is designed for installation in distribution boards to safeguard electrical circuits against earth leakage faults and ensure reliable safety in residential and commercial applications.

## Long description

The Hager CFC440J residual current circuit breaker is a 4-pole modular electrical protection device designed for installation in distribution boards. It features a 40A current rating and a 0.3A sensitivity of type AC, making it suitable for safeguarding electrical circuits against earth leakage faults in various environments.
Advantages
This residual current circuit breaker provides dependable protection against earth leakage currents, contributing to overall electrical safety in electrical installations. Its 4-pole configuration allows for multi-phase circuit protection, and the standard modular design ensures straightforward integration into existing distribution boards. Manufactured by Hager, it is built to meet established industry standards for quality and performance in residential and commercial electrical systems.
Suitable for
Residential electrical distribution boards
Commercial building sub-distribution panels
Protection of standard AC electrical loads against earth leakage
Multi-phase circuits requiring type AC residual current protection
When it may not be suitable
This device is not suitable for circuits that require protection against pulsating DC or high-frequency residual currents, as it is strictly a type AC circuit breaker. It should not be used in environments where direct current components are present in the electrical load.
Key specifications
4-pole design
40A current rating
0.3A sensitivity
Type AC residual current protection
How to use
The device should be installed by a qualified electrician within a compatible distribution board or enclosure. It mounts onto a standard DIN rail. Connections to the incoming and outgoing power lines must be executed securely in accordance with local electrical wiring regulations and the manufacturer's connection guidelines. Regular manual testing via the integrated test button is recommended to verify correct mechanical and electrical operation.
What to consider before purchase
Verify that the 40A current rating and 4-pole configuration match the electrical load requirements of your circuit
Ensure type AC sensitivity meets the specific safety and regulatory standards for your application
Check available space in the distribution board for a modular 4-pole device
Usage recommendations: Perform a manual test of the residual current circuit breaker using the test button at least twice a year to ensure proper functional readiness. Installation and maintenance must always be carried out by a certified professional in compliance with applicable safety codes.

## Specifications

| Feature | Value |
|---|---|
| Quantity | 1 |
| Compliance certificates | RoHS |

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. 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

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