ABB CR-M024DC4L Interface Relay, 24V DC Coil, 4c/o Contacts, 250V AC

The ABB CR-M024DC4L is a high-performance miniature interface relay designed for robust industrial control and automation systems. This pluggable relay is engineered for seamless integration into electrical panels, providing reliable signal switching and electrical isolation. With its compact design and durable construction, it ensures consistent operation in demanding environments, making it an essential component for managing complex control circuits.

Advantages

This interface relay offers significant operational benefits, including a versatile 4 changeover contact configuration that allows for the simultaneous switching of multiple circuits from a single input signal. The inclusion of an integrated test button enables manual actuation and locking of the output contacts, which greatly simplifies the testing and commissioning process for technicians. Furthermore, the built-in LED indicator provides immediate visual feedback regarding the energization status of the coil, allowing for quick diagnostics and maintenance. Its compatibility with standard and logic sockets, along with various pluggable function modules, ensures high flexibility in system design and installation.

Suitable for

• Industrial automation and control systems
• Signal switching in electrical panels
• Electrical isolation between control and load circuits
• Complex relay logic applications

When it may not be suitable

This relay is not intended for high-power switching applications that exceed its 6A contact rating. It is also not suitable for direct outdoor installation without a protective enclosure, as it is designed for use within controlled industrial environments.

Key specifications

• Coil voltage: 24V DC
• Contact configuration: 4 changeover (SPDT) contacts
• Maximum switching voltage: 250V AC
• Rated current: 6A
• Dimensions: 21.2 x 27.5 x 35.6 mm
• Weight: 33 g
• Integrated features: Test button and LED indicator

How to use

To use the ABB CR-M024DC4L, first select a compatible ABB CR-M socket that matches your wiring requirements. Insert the relay firmly into the socket until it clicks into place. The socket can then be snap-on mounted onto a standard DIN rail for secure installation. Connect your control signal to the coil terminals and your load circuits to the output contacts according to the wiring diagram. Use the integrated test button to manually verify the contact operation during the initial setup phase. The LED will illuminate when the coil is properly energized, confirming the relay is active.

What to consider before purchase

• Ensure the control voltage of your system matches the 24V DC coil requirement.
• Verify that the 6A contact rating is sufficient for your specific load requirements.
• Check if you require additional accessories such as logic sockets, function modules, or markers for your installation.
• Confirm that the physical dimensions fit within your existing control cabinet layout.

Usage recommendations: Always ensure the power supply is disconnected before installing or removing the relay from its socket. Regularly inspect the relay and its socket for signs of wear or loose connections to maintain optimal performance and safety in your automation system.