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1SVR405621R1400 ABB CR-U024DC2LD Pluggable Relay 2C/O 24V DC
ABB CR-U024DC2LD is a CR-U pluggable universal interface relay with a 24 V DC control supply, two changeover contacts, a 250 V / 10 A contact rating, integrated LED and free-wheeling diode.
£19.71
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.
Technical Specifications
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| Device Type | Plug-in Relay | |
|---|---|---|
| Switching Current (A) | 10 A | |
| Series | CR-U | |
| ABB order code | 1SVR405621R1400 | |
| ABB product group | 310944 – Pluggable Relays | |
| Product type | Pluggable universal interface relay | |
| Rated control supply voltage | 24 V DC | |
| Output contacts | 2 c/o (SPDT) | |
| Contact rating | 250 V / 10 A | |
| Contact material | Silver-nickel alloy (AgNi) | |
| Indication | Integrated LED | |
| Coil protection | Integrated free-wheeling diode | |
| Compatible socket | ABB CR-U2S / CR-U2SM for 2 c/o relays | |
| Net weight | 0.033 kg |
Frequently Asked Questions
What is the ABB CR-U024DC2LD used for?
The ABB CR-U024DC2LD is a pluggable universal interface relay used for switching, electrical isolation and signal interfacing in industrial automation and control applications.
What control voltage does the CR-U024DC2LD require?
The CR-U024DC2LD operates from a rated control supply voltage of 24 V DC.
How many contacts does the ABB CR-U024DC2LD provide?
The relay provides two changeover contacts (2 c/o / SPDT), allowing two switching circuits to be controlled from the relay coil.
What is the contact rating of the CR-U024DC2LD?
The CR-U024DC2LD has a contact rating of 250 V / 10 A.
Does the CR-U024DC2LD include an LED and diode?
Yes. The relay incorporates an integrated LED for visual operating indication and a free-wheeling diode for suppression of the DC coil.
What contact material is used in the ABB CR-U024DC2LD?
The CR-U024DC2LD uses silver-nickel alloy (AgNi) contacts for dependable electrical switching.
Which sockets can be used with the ABB CR-U024DC2LD?
The two-changeover CR-U relay can be used with compatible ABB CR-U sockets including the CR-U2S socket for 2 c/o relays and modules and the compact CR-U2SM socket.
Trusted by Industrial Automation Professionals
ABB CR-U pluggable universal interface relays provide machine builders, panel builders and automation engineers with robust and serviceable switching solutions for reliable electrical isolation, signal interfacing and control within industrial automation systems.
