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ABB CR-U 51B Pack of 10 Pluggable Modules
£29.25 per pack of 10
Why Choose the ABB CR-U 51B Pluggable Module?
The ABB CR-U 51B is a compact and reliable RC element pluggable function module designed for ABB CR-U universal relay sockets. This relay accessory provides RC circuit suppression, helping reduce switching interference and protect relay contacts in industrial control applications. ([turn0search1])
Part of the ABB CR-U interface relay accessory range, the module enables quick plug-in installation and efficient maintenance for relay-based automation systems. Its compact design supports space-saving electrical panel layouts while improving the performance and reliability of relay switching circuits. ([turn0search1])
With a rated control supply voltage of 6–24 V AC/DC, the ABB CR-U 51B module is suitable for industrial automation panels, PLC interfaces, machine control systems and electrical cabinets requiring reliable RC suppression for relay applications. ([turn0search5])
Key Advantages
- Compact RC suppression module for ABB CR-U relay sockets.
- Helps reduce electrical interference during relay switching operations.
- 6–24 V AC/DC control supply compatibility.
- Quick plug-in installation reduces wiring effort and maintenance time.
- Designed for dependable industrial automation and control applications.
- ABB quality accessory for professional relay interface solutions.
Key Features
- ABB CR-U 51B pluggable RC element module.
- Compatible with ABB CR-U universal relay sockets.
- RC circuit spark suppression function.
- 6–24 V AC/DC rated control supply voltage.
- No LED status indication included.
- Compact plug-in construction for relay accessories.
- Suitable for AC relay coil suppression applications.
- Designed for simple installation and replacement.
Reliable Relay Switching Protection for Industrial Systems
The ABB CR-U 51B improves relay switching performance by providing RC suppression to minimise electrical disturbances caused during coil switching. This helps protect connected components and supports reliable operation in industrial environments.
ABB CR-U pluggable modules are designed for automation engineers requiring compact, dependable and easy-to-integrate relay solutions. Their modular construction enables efficient installation and maintenance in electrical control systems.
Typical Applications
- Industrial automation control panels.
- PLC interface relay systems.
- Machine building and OEM equipment.
- Electrical control cabinets.
- AC relay switching applications.
- Industrial process control systems.
Technical Specifications
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| Device Type | Accessory | |
|---|---|---|
| Mounting Type | Plug-in socket | |
| Coil / Supply Voltage | 12 V AC, 12 V DC, 24 V AC, 24 V DC | |
| Manufacturer | ABB | |
| Product type | Pluggable function module | |
| Series | CR-U | |
| Model | CR-U 51B | |
| Order code | 1SVR405663R0000 | |
| Function | RC element / spark suppression | |
| Control supply voltage | 6–24 V AC/DC | |
| Output signal | None | |
| Compatible relay range | ABB CR-U | |
| Mounting type | Plug-in mounting | |
| Product width | 34 mm | |
| Product height | 24 mm | |
| Product depth | 9 mm | |
| Weight | approx. 0.007 kg | |
| HS Code | 85480090 | |
| Country of Manufacture | China |
Frequently Asked Questions
What is the ABB CR-U 51B used for?
The ABB CR-U 51B is an RC element pluggable module used with ABB CR-U relay sockets to provide switching suppression and improve relay circuit reliability.
Which relay sockets are compatible with this module?
This module is designed for use with ABB CR-U universal relay sockets.
What voltage range does the CR-U 51B support?
The module supports a rated control supply voltage of 6–24 V AC/DC.
Does this module include LED indication?
No, the ABB CR-U 51B is an RC suppression module without LED indication.
What protection function does this module provide?
The module provides RC circuit suppression to reduce switching interference and improve relay performance.
Trusted by Automation Engineers Worldwide
ABB CR-U pluggable relay accessories provide reliable protection, flexibility and efficient integration for industrial automation systems, helping engineers build dependable control solutions.
