# Residual-current device Polot CDC425J 3-phase 25A 30mA AC

**URL:** https://aio.lv/en/product--polot-cdc425j--12397373
**Data updated:** 2026-04-27 22:29 (EEST)
**Category:** Power Sockets
**Manufacturer:** Polot
**Manufacturer code:** CDC425J
**EAN:** 3250611616375
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 59.49 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 49.17 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--polot-cdc425j--12397373

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

Polot CDC425J is a 3-phase residual-current device (RCD) with a rated current of 25 A and a 30 mA AC sensitivity. Designed to detect and disconnect earth leakage currents in three-phase electrical circuits, it provides personnel protection and reduces fire risk. Suitable for commercial and residential distribution boards requiring AC-type RCD protection.

## Long description

Polot CDC425J 3-phase 25A 30mA AC residual-current device is designed to detect imbalance between live conductors and trip the circuit when AC-type leakage current exceeds the set sensitivity. Intended for installation in three-phase distribution boards, this device provides personnel protection against electric shock and reduces risk of fire caused by earth leakage in commercial and residential electrical installations.
Advantages
The RCD features AC-type residual-current detection with a rated current of 25 A and a trip sensitivity of 30 mA, offering a balance between continuity of supply and safety. Its three-phase design enables protection of all line conductors in a three-phase circuit with a single device. The compact form factor allows installation in standard DIN-rail consumer units and distribution boards while maintaining straightforward mechanical and electrical connections.
Suitable for
Three-phase commercial and light industrial distribution boards where personnel protection and leakage detection are required
Residential buildings with three-phase supplies that require AC-type RCD protection
Protection of circuits powering motors, heating elements, and general-purpose three-phase loads
When it may not be suitable
This AC-type residual-current device is designed to detect sinusoidal alternating leakage currents; it may not operate correctly for pulsating DC or certain mixed-frequency leakage currents. Applications requiring sensitivity to DC components or specific types of residual currents (for example, fault currents containing DC offset) may need a different RCD type.
Key specifications
Number of poles: 3-pole device for three-phase circuits
Rated operating current: 25 A
Residual current sensitivity: 30 mA (AC-type)
Tripping characteristic: AC-type residual-current detection
Mounting: DIN-rail compatible enclosure for standard distribution boards
How to use
Install the device into the distribution board on a standard DIN rail and connect the three phase conductors and neutral according to the wiring diagram and local electrical codes. Verify that supply is isolated before making connections. After installation, switch the device ON and use the test button (if present) to confirm correct tripping operation during commissioning and regular maintenance intervals. Follow applicable installation standards and, if necessary, consult a qualified electrician for correct coordination with upstream and downstream protective devices.
What to consider before purchase
Ensure 25 A rated current is suitable for the circuit load and coordination with upstream protection
Confirm AC-type RCD is appropriate for the installation and the type of residual currents expected
Check available space in the distribution board for a 3-pole DIN-rail device
Verify compatibility with local electrical codes and required certification or marking
Usage recommendations
Test the device after installation and at recommended intervals using the built-in test function to ensure continued operation. For circuits with electronic equipment or devices that may produce smooth DC leakage, consider consulting a specialist to determine if a different residual-current type is required.

## FAQ

### How much does the Polot CDC425J 3-phase RCD 25A 30mA AC cost, and is it available for purchase?

The price is 59.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 54 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 03.07.2026 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 Polot 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 Polot 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/12397373/68680803_large.webp