# Hager CPA440J Residual Current Circuit Breaker 4P 40A 0.3A Type A-S

**URL:** https://aio.lv/en/product--hager-cpa440j--12454609
**Data updated:** 2026-05-18 02:52 (EEST)
**Category:** Power Sockets
**Manufacturer:** Hager
**Manufacturer code:** CPA440J
**EAN:** 3250611619819
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 128.99 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 106.60 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hager-cpa440j--12454609

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

The Hager CPA440J is a 4-pole residual current circuit breaker (RCCB) designed for electrical safety. It features a 40A rated current and 0.3A sensitivity with Type A-S selective characteristics. This device provides reliable protection against earth leakage currents in residential and industrial electrical installations, ensuring enhanced safety and system stability.

## Long description

The Hager CPA440J is a high-performance 4-pole residual current circuit breaker (RCCB) engineered to provide robust electrical safety in both residential and industrial environments. This device is specifically designed to detect and interrupt earth leakage currents, preventing potential hazards and ensuring the integrity of your electrical distribution system. With a rated current of 40A and a sensitivity of 0.3A, it offers a reliable solution for maintaining circuit protection standards.
Advantages
The primary advantage of this RCCB is its Type A-S selective characteristic, which allows for time-delayed tripping. This feature is essential for maintaining system selectivity, ensuring that only the circuit directly affected by a fault is disconnected, while the rest of the installation remains powered. The robust construction by Hager ensures long-term durability and consistent performance under varying electrical loads, making it a dependable choice for complex distribution boards.
Suitable for
Residential electrical distribution boards
Industrial power supply systems
Installations requiring selective protection to prevent nuisance tripping
Protection against AC and pulsating DC residual currents
When it may not be suitable
This device is not intended for use in circuits where a higher sensitivity, such as 30mA, is required for direct contact protection. Furthermore, it should not be installed in systems exceeding its 40A rated current capacity.
Key specifications
Number of poles: 4
Rated current: 40A
Residual current sensitivity: 0.3A
Type: A-S (Selective)
Mounting: DIN rail
How to use
The Hager CPA440J should be installed by a qualified electrician in accordance with local electrical regulations. The device is designed for mounting onto a standard DIN rail within a distribution enclosure. Ensure that the input and output cables are securely connected to the respective terminals, following the wiring diagram provided on the device housing. Once installed, the test button should be pressed to verify the mechanical operation of the breaker.
What to consider before purchase
Verify that the 0.3A sensitivity meets your specific safety requirements
Ensure the 40A rating is compatible with your main circuit load
Confirm that the selective (S) type is appropriate for your installation's coordination needs
Usage recommendations
Regularly test the residual current circuit breaker using the integrated test button at least every six months to ensure the mechanism remains functional and responsive to fault conditions.

## Specifications

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

## FAQ

### How much does the Hager CPA440J Residual Current Circuit Breaker cost, and is it available for purchase?

The price is 128.99 € (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 14.07.2026 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 Hager CPA440J Residual Current 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/12454609/68776010_large.webp