# Residual-current device Schneider Electric A9Z21240 40A 220-240V

**URL:** https://aio.lv/en/product--schneider-electric-a9z21240--1932164
**Data updated:** 2026-03-20 09:43 (EET)
**Category:** Power Sockets
**Manufacturer:** Schneider Electric
**Manufacturer code:** A9Z21240
**EAN:** 3606480443015
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 65.99 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 54.54 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--schneider-electric-a9z21240--1932164

## 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 Schneider Electric A9Z21240 is a residual-current device designed for protection against electrical shocks and short circuits. It operates at an input voltage of 220-240V and a rated current of 40A. This device features a breaking capacity of 40A and is compact with dimensions of 36mm width, 73mm depth, and 91mm height. Ideal for residential and commercial applications, it ensures safety and reliability in electrical installations.

## Long description

The Schneider Electric A9Z21240 residual-current device (Acti 9 iID) is a 2-pole RCCB designed to provide protection against earth leakage and electric shock in 220–240V installations. Rated for a continuous current of 40A with a tripping sensitivity of 30mA and Type A detection, it combines compact dimensions (36mm width, 73mm depth, 91mm height) with a breaking capacity suitable for many light-commercial and residential circuits. The device is intended for installation on standard DIN rails and integrates into modular switchboards to enhance circuit safety.
Advantages
The A9Z21240 offers selective residual-current protection with Type A detection, enabling it to respond to both AC and pulsating DC leakage currents. Its 30mA sensitivity provides personnel protection against harmful electric shocks while the 40A rated current supports typical branch circuits. The compact 36mm width preserves space in distribution panels, and the modular form factor simplifies installation and replacement in existing switchboards.
Suitable for
 Residential electrical distribution boards
 Small commercial or office circuits
 Protection of lighting and socket circuits
 Areas requiring Type A residual-current protection (AC and pulsating DC faults)
Key specifications
 Poles: 2-pole residual-current device
 Rated current: 40 A
 Operating voltage: 220–240 V AC
 Residual operating current (sensitivity): 30 mA
 Type: A (detects AC and pulsating DC leakage)
 Breaking/tripping capacity: 40 A
 Mounting: DIN-rail compatible, modular format
 Dimensions (W×D×H): 36 mm × 73 mm × 91 mm
How to use
The device should be installed by a qualified electrician according to local electrical codes and Schneider Electric installation instructions. Mount the A9Z21240 on a compatible DIN rail inside the distribution board, connect the live and neutral conductors to the designated terminals, and ensure correct polarity and secure tightening of terminal screws. Verify coordination with upstream protective devices and label the circuit for identification. After installation, test the residual-current trip function using the built-in test button to confirm correct operation.
Usage recommendations
Use this RCCB in circuits where 30 mA protection is required for personnel safety and where Type A detection is necessary due to potential pulsating DC leakage (for example, circuits with electronic equipment or single-phase drives). Periodically test the device using the test button and follow a maintenance schedule in line with local regulations to ensure continued protective performance.

## Specifications

| Feature | Value |
|---|---|
| Type | Type A |
| Storage temperature (T-T) | -40 - 85 |
| Breaking capacity | 40 A |
| Pollution degree | 3 |
| Circuit breaker type | Residual-current device |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.21 kg |
| Height | 91 mm |
| Width | 36 mm |
| Depth | 73 mm |

### Design

| Feature | Value |
|---|---|
| Certification | EN/IEC 61008-1 |
| Product colour | White |
| International Protection (IP) code | IP20 |

### Power

| Feature | Value |
|---|---|
| Input voltage | 220 - 240 |
| Rated current | 40 A |
| Rated voltage | 220 V |

### Features

| Feature | Value |
|---|---|
| Operating temperature (T-T) | -25 - 60 |
| Number of poles | 2P |

### Technical details

| Feature | Value |
|---|---|
| Sustainability certificates | RoHS |

## FAQ

### How much does the Residual-current device Schneider Electric A9Z21240 cost, and is it available for purchase?

The price is 65.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 75 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. 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for Residual-current device Schneider Electric A9Z21240?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/1932164/58130041_large.webp