# Schneider Electric TeSys K CA3KN40BD3 Control Relay 24V DC

**URL:** https://aio.lv/en/product--schneider-electric-ca3kn40bd3--12455725
**Data updated:** 2026-05-18 09:33 (EEST)
**Category:** Control Systems
**Manufacturer:** Schneider Electric
**Manufacturer code:** CA3KN40BD3
**EAN:** 3389110484663
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 41.49 €
**Prices and availability valid until:** 2026-07-30 23:59
**Price without VAT (21%):** 34.29 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--schneider-electric-ca3kn40bd3--12455725

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 20.07.2026 | free |
| Pickup points | 23.07.2026 | 1.89 EUR |
| Courier delivery to door | 23.07.2026 | 4.99 EUR |

## Summary description

The Schneider Electric TeSys K CA3KN40BD3 is a high-quality control relay designed for reliable switching in industrial automation and control systems. This compact relay features a 24V DC control circuit voltage and is engineered for durability and efficient performance. It is an essential component for managing electrical signals in various control applications, ensuring precise operation and long-term reliability in demanding environments.

## Long description

The Schneider Electric TeSys K CA3KN40BD3 is a high-performance control relay engineered for precision and reliability in industrial automation environments. This compact device is specifically designed to manage electrical signals effectively, ensuring seamless integration into complex control systems. With its robust construction and high-quality materials, this relay provides consistent switching performance, making it a dependable choice for demanding technical applications where space efficiency and operational stability are paramount.
Advantages
The primary benefit of this control relay is its compact design, which allows for easy installation in space-constrained control panels without compromising on performance. It is built to withstand the rigors of industrial use, offering long-term durability and consistent switching cycles. The 24V DC control circuit ensures energy-efficient operation while maintaining high precision in signal management, contributing to the overall reliability of your automation infrastructure.
Suitable for
Industrial automation and control systems
Signal management in electrical panels
Switching auxiliary circuits
Integration into machinery control logic
When it may not be suitable
This relay is designed for specific control circuit voltages and is not suitable for applications requiring high-power load switching or direct motor control. It should not be used in environments that exceed its specified technical ratings or in conditions where extreme moisture or corrosive elements are present without appropriate protective enclosures.
Key specifications
Control circuit voltage: 24V DC
Contact configuration: 4 normally open (NO) contacts
Dimensions: 45 x 57 x 58 mm
Weight: 225 g
Color: Black and White
How to use
Installation should be performed by qualified personnel in accordance with local electrical standards. The relay is designed for mounting on standard DIN rails or direct panel mounting. Ensure that the control circuit voltage matches the 24V DC requirement before connecting the terminals. Secure all wiring firmly to the designated terminals to prevent loose connections, and verify the circuit integrity before energizing the system.
What to consider before purchase
Verify that your control system operates on a 24V DC supply.
Ensure the physical dimensions fit within your existing control cabinet layout.
Confirm that the 4 normally open contact configuration meets your specific circuit logic requirements.
Usage recommendations: Regularly inspect the terminal connections for tightness and ensure the relay is free from dust accumulation to maintain optimal electrical contact and prevent overheating during prolonged operation.

## Specifications

| Feature | Value |
|---|---|
| Dimensions (WxDxH) | 45 x 57 x 58 |
| Weight | 0.225 kg |
| Operating temperature (T-T) | -25 - 50 |
| Product colour | Black, White |
| AC input frequency | 50 - 60 |
| AC input voltage | 230 |

## FAQ

### How much does the Schneider Electric TeSys K CA3KN40BD3 Control Relay cost, and is it available for purchase?

The price is 41.49 € (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 20.07.2026 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

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