Why Choose the ABB CR-U048DC3LD Pluggable Relay?
The ABB CR-U048DC3LD 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 universal interface relay series, it operates from a 48 V DC control supply and provides three changeover contacts for flexible multi-circuit switching.
This relay provides 3 c/o (SPDT) output contacts rated at 250 V / 10 A. The CR-U048DC3LD configuration incorporates an integrated LED and diode, combining clear visual indication of coil energisation with suppression for the DC coil circuit.
Designed to plug into compatible ABB CR-U sockets, the CR-U048DC3LD provides a serviceable interface solution for industrial control cabinets and machinery. Its robust circular plug-in pins are designed for repetitive-use applications, while the integrated test button allows manual actuation and locking of the output contacts during commissioning and troubleshooting.
Key Advantages
- Robust CR-U pluggable universal interface relay for industrial automation.
- 48 V DC rated control supply voltage.
- Three changeover (3 c/o / SPDT) contacts for multi-circuit switching.
- 250 V / 10 A contact rating.
- Integrated LED provides visual indication of relay energisation.
- Integrated diode provides suppression for the DC coil circuit.
- Manual test button simplifies functional testing and commissioning.
- Pluggable construction supports straightforward replacement and maintenance.
Key Features
- ABB CR-U universal interface relay series.
- 48 V DC control voltage.
- 3 c/o (SPDT) output contacts.
- 250 V / 10 A output rating.
- Silver-nickel alloy (AgNi) contact material.
- Integrated LED operating indication.
- Integrated diode for DC coil suppression.
- Integrated manual test and locking button.
- Robust circular plug-in pins for repetitive-use industrial applications.
- Compatible with ABB CR-U sockets and associated relay accessories.
Reliable Interface Switching for Industrial Automation
Pluggable interface relays such as the ABB CR-U048DC3LD provide electrical isolation, amplification and signal matching between electronic control equipment and connected sensors, actuators or other field circuits. Its three changeover contacts enable multiple switching paths to be controlled from a single 48 V DC input signal.
The integrated LED provides immediate visual indication of coil energisation, while the diode provides suppression for the DC relay coil. Combined with the manual test button and robust plug-in construction, these features make the CR-U048DC3LD a practical interface relay for commissioning, servicing and maintaining industrial automation equipment.
Typical Applications
- Industrial automation and machine control panels.
- PLC, industrial PC and fieldbus interface circuits.
- Electrical isolation and signal interfacing.
- Contactor and motor-control interface circuits.
- Multi-circuit switching and interlocking systems.
- Alarm, indication and signalling circuits.
- Building automation and electrical control systems.
- OEM machinery and production equipment.
