Why Choose the ABB CR-U024DC2LD Pluggable Relay?
The ABB CR-U024DC2LD is a robust pluggable universal interface relay designed for electrical isolation, signal interfacing and switching in industrial automation and control systems. As part of the ABB CR-U interface relay series, it operates from a 24 V DC control supply and provides two changeover contacts for versatile control-circuit switching.
This relay provides 2 c/o (SPDT) output contacts with a 250 V / 10 A contact rating, making it suitable for a wide range of industrial interface applications. The CR-U024DC2LD version incorporates an LED and free-wheeling diode, providing clear visual operating indication together with suppression of the inductive voltage generated when the DC relay coil is de-energised.
Designed for use with compatible ABB CR-U sockets, the CR-U024DC2LD provides a serviceable plug-in solution for industrial control cabinets and machinery. Its silver-nickel contacts support dependable switching, while the CR-U accessory system includes dedicated sockets and holders for convenient DIN-rail-mounted relay assemblies.
Key Advantages
- Robust CR-U pluggable universal interface relay for industrial control applications.
- 24 V DC rated control supply voltage suitable for common automation control systems.
- Two changeover (2 c/o / SPDT) contacts for flexible circuit switching.
- 250 V / 10 A contact rating.
- Integrated LED provides visual relay-status indication.
- Built-in free-wheeling diode provides suppression for the DC coil.
- Silver-nickel alloy (AgNi) contacts provide reliable switching performance.
- Pluggable construction simplifies installation, replacement and maintenance.
Key Features
- ABB CR-U universal interface relay series.
- 24 V DC control voltage.
- 2 c/o (SPDT) output contacts.
- 250 V / 10 A contact rating.
- Silver-nickel alloy (AgNi) contact material.
- Integrated LED operating indication.
- Integrated free-wheeling diode.
- Pluggable electromechanical relay construction.
- Compatible with dedicated ABB CR-U 2 c/o relay sockets.
- Suitable for industrial interface, isolation and general control switching applications.
Reliable Interface Switching for Industrial Automation
Pluggable interface relays such as the ABB CR-U024DC2LD provide electrical isolation and switching between industrial controllers and connected field circuits. Its two changeover contacts allow two independent switching paths to be controlled from a single 24 V DC relay input, supporting automation, signalling, interlocking and general control functions.
The integrated LED provides immediate visual indication of relay energisation, while the free-wheeling diode suppresses the inductive voltage generated by the DC coil when switched off. Combined with the CR-U plug-in construction and compatible socket system, these features provide a practical solution for commissioning, servicing and maintaining industrial control panels.
Typical Applications
- Industrial automation and machine control panels.
- PLC and industrial controller interface circuits.
- Electrical isolation and signal interfacing.
- Contactor and motor-control interface circuits.
- Interlocking and auxiliary switching circuits.
- Alarm, indication and signalling systems.
- Building automation and electrical control equipment.
- OEM machinery and production systems.
