# Residual Current Relay Hager CD241J — 30 mA, 2-pole, 40 A

**URL:** https://aio.lv/en/product--hager-cd241j--11381699
**Data updated:** 2026-04-24 17:42 (EEST)
**Category:** Power Sockets
**Manufacturer:** Hager
**Manufacturer code:** CD241J
**EAN:** 3250611616351
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 43.99 €
**Prices and availability valid until:** 2026-08-10 23:59
**Price without VAT (21%):** 36.36 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hager-cd241j--11381699

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 17.07.2026 | free |
| Pickup points | 22.07.2026 | 1.89 EUR |
| Courier delivery to door | 22.07.2026 | 4.99 EUR |

## Summary description

Hager CD241J is a residual current (earth leakage) relay rated for 30 mA sensitivity, configured as a 2-pole device with a 40 A switching capacity. It monitors alternating-current leakage and trips circuits when leakage exceeds 30 mA, providing protection against electric shock and fire risk. Suitable for residential and light-commercial AC installations requiring RCD/RCB functionality.

## Long description

Hager CD241J is a residual current relay designed to detect alternating-current leakage and interrupt power when leakage exceeds 30 mA. As a 2-pole device with a rated switching capacity of 40 A, it is intended for use in single-phase AC distribution circuits where basic residual current protection is required. The relay mounts on standard DIN rails and integrates with protective and switching equipment in residential and light-commercial electrical panels.
Advantages
The device provides sensitive residual current detection at 30 mA, helping reduce the risk of electric shock and minimizing fire hazards linked to earth leakage. Its 2-pole switching arrangement allows protection of both phase and neutral conductors in relevant circuits. With a 40 A switching capacity, the relay can be used with a variety of branch circuits and protective devices while offering consistent trip operation and straightforward installation on DIN rail systems.
Suitable for
 Residential circuit protection where 30 mA residual current detection is required
 Light-commercial electrical installations and small offices
 Integration into distribution boards to add earth leakage protection to specific circuits
 Replacement or upgrade of RCD/RCB functionality in existing panels with compatible space and connections
When it may not be suitable
This relay provides basic residual current protection at a fixed 30 mA sensitivity and is not intended for applications that require adjustable sensitivity, AC/DC immunity characteristics beyond standard alternating-current detection, or very high short-time switching currents. It is not a substitute for combined overcurrent and residual-current devices where coordinated overcurrent protection (such as RCBOs) is required.
Key specifications
 Residual current sensitivity: 30 mA (AC)
 Number of poles: 2-pole
 Rated switching current: 40 A
 Intended use: AC leakage detection and circuit interruption
 Mounting: DIN rail compatible
How to use
Install the relay into the distribution board on a compatible DIN rail and wire the incoming phase and neutral conductors through the device according to the panel wiring diagram and local regulations. Connect the relay’s trip output to the appropriate upstream or downstream switching device as required by the installation. After wiring, test the relay’s operation using suitable test procedures or test buttons on associated devices to verify trip response at the specified leakage level. Ensure power is isolated before performing installation or maintenance.
What to consider before purchase
 Verify that 30 mA residual sensitivity and AC-only detection match the protection requirements for the intended circuits
 Confirm the 40 A switching capacity is sufficient for the connected loads and coordination with upstream protective devices
 Check physical fit and DIN rail space in the distribution board for a 2-pole relay
 Ensure wiring configuration and local electrical codes permit the use of a separate residual current relay in the planned application
Usage recommendations
Use the relay as part of a complete protection scheme: pair with correctly rated upstream overcurrent protection, perform periodic functional tests, and follow local installation standards. For circuits requiring combined overcurrent and residual-current protection or different sensitivity values, select a device that matches those specific requirements.

## FAQ

### How much does the Hager CD241J residual current relay 30 mA 2P 40 A cost, and is it available for purchase?

The price is 43.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 39 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 17.07.2026 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. 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/11381699/65871859_large.webp