# Schneider Electric CA3KN40BD Auxiliary Relay, 24V DC, 4NO Contacts

**URL:** https://aio.lv/en/product--schneider-electric-ca3kn40bd--12445300
**Data updated:** 2026-05-18 02:53 (EEST)
**Category:** Control Systems
**Manufacturer:** Schneider Electric
**Manufacturer code:** CA3KN40BD
**EAN:** 3389110500219
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 47.99 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 39.66 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--schneider-electric-ca3kn40bd--12445300

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

The Schneider Electric CA3KN40BD is a high-quality auxiliary relay designed for reliable control circuit switching. Featuring a 24V DC coil voltage and 4 normally open (NO) contacts, this relay is ideal for industrial automation and electrical control systems. It is certified to CSA, UL, and IP2x standards, ensuring durability and safety in demanding environments. Compact and efficient, it provides precise performance for various electrical applications.

## Long description

The Schneider Electric CA3KN40BD is a professional-grade auxiliary relay engineered for precise control circuit switching in industrial and commercial electrical systems. This compact device features a 24V DC coil and is equipped with four normally open (NO) contacts, providing reliable performance for complex automation tasks. Built to withstand demanding operational environments, it adheres to international safety and quality standards, making it a dependable component for modern electrical panels.
Advantages
This auxiliary relay offers exceptional reliability and efficiency due to its robust design and high-quality manufacturing standards. Its compact dimensions allow for space-saving installation in crowded control cabinets, while the 24V DC coil ensures energy-efficient operation. The inclusion of four normally open contacts provides versatility for various switching configurations, and the device's certification to CSA, UL, and IP2x standards guarantees consistent safety and durability during long-term use.
Suitable for
Industrial automation systems
Control circuit switching
Electrical panel integration
Machine control applications
When it may not be suitable
This relay is designed specifically for control circuit switching and is not intended for direct power switching of high-load motors or heavy-duty industrial equipment. It should not be used in environments that exceed its specified voltage or environmental protection ratings.
Key specifications
Coil voltage: 24V DC
Contact configuration: 4 normally open (NO)
Maximum operational voltage: 690V
Dimensions: 45 x 57 x 48 mm
Weight: 225 g
Certifications: CSA, UL, IP2x
How to use
The relay is designed for standard DIN rail or panel mounting within an electrical enclosure. Ensure the control circuit is de-energized before installation. Connect the 24V DC control signal to the coil terminals and wire the load circuits to the four normally open contacts according to your system schematic. Verify all connections are secure and that the voltage levels match the device specifications before applying power.
What to consider before purchase
Verify that your control system provides a 24V DC signal.
Ensure the 4 NO contact configuration meets your specific switching requirements.
Check available space in your control cabinet against the device dimensions.
Confirm that the environmental conditions are within the IP2x protection rating.
Usage recommendations
For optimal performance and longevity, ensure the relay is installed in a clean, dry environment and protected from excessive vibration or extreme temperatures. Regularly inspect terminal connections to maintain electrical integrity.

## Specifications

| Feature | Value |
|---|---|
| Dimensions (WxDxH) | 45 x 57 x 48 |
| Weight | 0.225 kg |
| Certification | CSA
UL
 IP2x |
| Operating temperature (T-T) | -25 - 50 |
| Product colour | White |
| Coil voltage | 24 V |
| Number of contacts | 4 |
| Compliance certificates | RoHS |

## FAQ

### How much does the Schneider Electric CA3KN40BD Auxiliary Relay cost, and is it available for purchase?

The price is 47.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 06.07.2026 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/12445300/68779319_large.webp