# Residual-current device Schneider Electric IDK-AC40-300-4 A9Z06440, AC-type, 40 A, 300 mA, 4-pole

**URL:** https://aio.lv/en/product--schneider-electric-a9z06440--12113761
**Data updated:** 2026-03-20 10:06 (EET)
**Category:** Power Sockets
**Manufacturer:** Schneider Electric
**Manufacturer code:** A9Z06440
**EAN:** 3606480500503
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 53.99 €
**Prices and availability valid until:** 2026-08-06 23:59
**Price without VAT (21%):** 44.62 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--schneider-electric-a9z06440--12113761

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 24.07.2026 | free |
| Pickup points | 29.07.2026 | 1.89 EUR |
| Courier delivery to door | 29.07.2026 | 4.99 EUR |

## Summary description

Schneider Electric residual-current device IDK-AC40-300-4 (A9Z06440) is an AC-type RCD rated for 40 A with 300 mA residual current sensitivity and four poles. Designed to detect and disconnect alternating residual currents, it provides protection against earth leakage in distribution circuits and industrial installations where AC-only fault detection and high trip threshold are required.

## Long description

Schneider Electric IDK-AC40-300-4 is an AC-type residual-current device rated for 40 A with a 300 mA trip sensitivity and four poles. It is designed to detect and interrupt alternating residual currents in three-phase systems with neutral, providing earth-leakage protection for distribution boards and industrial electrical installations where AC-only detection and a higher trip threshold are required. The compact, DIN-rail compatible form factor fits standard switchgear and distribution enclosures.
Advantages
This residual-current device provides selective disconnection for alternating leakage currents while supporting a nominal current of 40 A. Its 300 mA sensitivity reduces the risk of nuisance trips due to small leakage currents, making it suitable for applications with expected higher leakage levels. The four-pole configuration ensures coordinated protection across three phases plus neutral in TN and TT systems. Built to Schneider Electric quality standards, the device integrates with typical distribution systems and mounting practices.
Suitable for
 Three-phase distribution panels with neutral (4-pole configurations)
 Industrial installations where AC-only residual current detection is acceptable
 Circuits requiring earth-leakage protection with a 300 mA trip level
 Applications prioritizing reduced nuisance tripping in environments with higher leakage
Key specifications
 Type: AC-type residual-current detection (detects alternating residual currents)
 Rated current: 40 A
 Residual current sensitivity (trip threshold): 300 mA
 Poles: 4-pole (three phases + neutral)
 Mounting: DIN-rail compatible for standard distribution enclosures
 Primary function: Earth-leakage detection and disconnection for distribution circuits
How to use
Install the device in the distribution board on a standard DIN-rail ensuring correct orientation and secure terminal connections for the three phases and neutral. Connect line and load conductors to the appropriate terminals and tighten to the manufacturer’s recommended torque. Verify that the device’s trip rating and type match the circuit requirements and upstream/downstream coordination. After wiring, perform insulation and functional tests according to local electrical standards and confirm the device trips correctly under simulated leakage conditions before commissioning the circuit.
Usage recommendations
Use this AC-type residual-current device where detection of pure alternating residual currents is sufficient and where a 300 mA trip threshold is appropriate for selective protection. Do not rely on AC-type devices for detection of DC or pulsed residual currents; for scenarios with electronic loads or inverters that may produce residual DC components, consider a device with A- or B-type detection as required by applicable regulations.

## FAQ

### How much does the RCD Schneider Electric IDK-AC40-300-4 A9Z06440 cost, and is it available for purchase?

The price is 53.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 9 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 24.07.2026 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 Schneider Electric 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 Schneider Electric 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/12113761/67649162_large.webp