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

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.