# Schneider Electric CA4KN31BW3 Auxiliary Contact Block 3NO+1NC 24V DC

**URL:** https://aio.lv/en/product--schneider-electric-ca4kn31bw3--12462932
**Data updated:** 2026-05-18 09:28 (EEST)
**Category:** Printer & Copier Parts
**Manufacturer:** Schneider Electric
**Manufacturer code:** CA4KN31BW3
**EAN:** 3389110428605
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

The Schneider Electric CA4KN31BW3 is an auxiliary contact block designed for reliable switching in industrial control circuits. It features a 3NO+1NC configuration and operates on 24V DC. Built for durability, it functions within a temperature range of -25 to 50 °C, making it suitable for demanding electrical environments. This component ensures precise control and integration with compatible contactors.

## Long description

The Schneider Electric CA4KN31BW3 auxiliary contact block is a high-quality electrical component engineered for precise switching operations within industrial control circuits. Featuring a 3NO+1NC configuration, this block is designed to integrate seamlessly with compatible contactors to enhance system functionality. It operates reliably on a 24V DC supply, ensuring consistent performance in demanding automation and control applications.
Advantages
This auxiliary contact block offers exceptional durability and reliability in various industrial settings. Its robust construction allows it to operate effectively across a wide temperature range, ensuring stability even in challenging environments. The compact design facilitates easy installation and space-saving integration into existing control panels, while the high-quality materials used in its manufacturing guarantee a long service life and consistent electrical contact performance.
Suitable for
Industrial automation control systems
Motor control circuits
Signal and feedback loops in electrical panels
Integration with compatible Schneider Electric contactors
When it may not be suitable
This component is specifically designed for 24V DC control circuits and is not suitable for AC voltage applications. It should not be used in environments exceeding the specified temperature range of -25 to 50 °C or in applications requiring different contact configurations.
Key specifications
Contact configuration: 3NO (Normally Open) + 1NC (Normally Closed)
Operating voltage: 24V DC
Operating temperature range: -25 to 50 °C
Dimensions: 45 mm width, 57 mm depth, 58 mm height
Color: Black and Grey
How to use
The contact block is designed for simple mechanical attachment to compatible contactors. Ensure the power supply is disconnected before installation. Align the block with the mounting interface of the contactor and secure it firmly according to the manufacturer's mechanical guidelines. Once installed, connect the control wiring to the appropriate terminals, ensuring that the voltage matches the 24V DC specification.
What to consider before purchase
Verify compatibility with your existing contactor model
Ensure your control circuit operates on 24V DC
Check that the physical dimensions fit within your current enclosure space
Confirm the required number of NO and NC contacts for your specific application
Usage recommendations
Always ensure that the electrical load connected to the auxiliary contacts does not exceed the rated capacity. Regular inspection of the terminal connections is recommended to maintain optimal electrical conductivity and prevent loose contacts over time.

## Specifications

| Feature | Value |
|---|---|
| Operating temperature (T-T) | -25 - 50 |
| Height | 58 mm |
| Width | 45 mm |
| Depth | 57 mm |
| Product colour | Black, Grey |

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. 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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