# Residual-current device Schneider Electric A9Z04440 Type A 4P 40 A 380–415 V 500 A breaking capacity

**URL:** https://aio.lv/en/product--schneider-electric-a9z04440--5104682
**Data updated:** 2026-04-27 22:26 (EEST)
**Category:** Power Sockets
**Manufacturer:** Schneider Electric
**Manufacturer code:** A9Z04440
**EAN:** 3606480482809
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 56.49 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 46.69 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--schneider-electric-a9z04440--5104682

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.89 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

Schneider Electric A9Z04440 is a Type A residual-current device (RCD) with 4 poles designed for AC and pulsating DC leakage detection. Rated current 40 A and rated voltage 380 V (operating 380–415 V). Breaking capacity 500 A. Compact DIN-rail mounted protection device (72×68×81 mm) suitable for domestic, commercial and light industrial electrical distribution to protect against earth faults and leakage currents.

## Long description

Schneider Electric A9Z04440 is a 4-pole Type A residual-current device (RCD) designed to detect AC and pulsating DC leakage currents and to disconnect power in case of earth faults. The device is rated for a nominal current of 40 A and is intended for use on systems with nominal voltages of 380–415 V. With a compact DIN-rail form factor and a breaking capacity of 500 A, this unit is suitable for domestic, commercial and light industrial distribution boards where selective protection against electric shock and fire risk from leakage currents is required.
Advantages
The Type A detection characteristic provides reliable sensitivity to AC and pulsing DC residual currents that may not be detected by Type AC devices. Its 4-pole construction allows protection of three-phase systems including neutral, and the 40 A rated current matches common circuit requirements for small distribution circuits. The 500 A breaking capacity ensures coordinated operation with upstream overcurrent protective devices in many low-voltage installations. The compact dimensions and DIN-rail mounting permit straightforward integration into standard distribution enclosures.
Suitable for
 Protection of three-phase circuits with neutral in homes, small offices and commercial premises
 Applications where residual currents may include pulsating DC components (Type A requirement)
 Integration into standard DIN-rail distribution boards and consumer units
 Circuits up to 40 A nominal current, including branch circuits for appliances and lighting
When it may not be suitable
This RCD does not provide overcurrent protection by itself and must be used in combination with appropriate circuit breakers or fuses sized for the installation. It is not a Type B device and therefore is not suitable where smooth DC residual currents or high-frequency components are expected; such installations may require Type B or other specialised protection. For systems with nominal currents above 40 A or where higher breaking capacity is required, a different device should be selected.
Key specifications
 Type: A residual-current device (senses AC and pulsating DC residual currents)
 Number of poles: 4 (three phases + neutral)
 Rated current: 40 A
 Rated operational voltage: 380–415 V (three-phase)
 Breaking capacity: 500 A
 Mounting: DIN-rail (compact footprint)
 Typical application: earth-fault/leakage protection for low-voltage distribution
How to use
Install the Schneider Electric A9Z04440 on a standard DIN-rail inside the distribution board, ensuring correct orientation and secure mechanical fixing. Connect the incoming three-phase supply and neutral to the designated input terminals and the outgoing load conductors to the output terminals following the wiring diagram supplied by the manufacturer. Use appropriate cable sizes and torque settings as required by local installation rules. Confirm upstream short-circuit protection is present and coordinated with the 500 A breaking capacity of the device. After wiring, perform insulation and functional tests according to local electrical codes to verify correct operation before placing the circuit into service.
What to consider before purchase
 Confirm the need for Type A sensitivity (AC + pulsed DC) rather than Type AC or Type B
 Verify the device rated current (40 A) matches the circuit load and conductor sizing
 Ensure the 500 A breaking capacity and coordination with upstream protective devices are adequate
 Check available space on the DIN-rail and the product dimensions to ensure fit
Usage recommendations
Use this RCD together with correctly sized overcurrent protection devices and follow national wiring regulations. Periodically test the device using the test button and include it in routine maintenance checks to ensure continued protection against leakage currents.

## Specifications

| Feature | Value |
|---|---|
| Type | Type A |
| Storage temperature (T-T) | -30 - 70 |
| Breaking capacity | 500 A |
| Pollution degree | 2 |
| Circuit breaker type | Residual-current device |

### Weight & dimensions

| Feature | Value |
|---|---|
| Height | 81 mm |
| Width | 72 mm |
| Depth | 68 mm |

### Design

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

### Power

| Feature | Value |
|---|---|
| Input voltage | 380 - 415 |
| Rated current | 40 A |
| Rated voltage | 380 V |

### Features

| Feature | Value |
|---|---|
| Operating temperature (T-T) | -25 - 40 |
| Number of poles | 4P |

### Technical details

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

## FAQ

### How much does the Schneider Electric A9Z04440 Type A RCD 4P 40 A cost, and is it available for purchase?

The price is 56.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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 13.07.2026 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: 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.

## Image

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