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ABB CR-U 41B Diode and LED Module
£2.52
Why Choose the ABB 1SVR405662R4000 CR-U 41B Pluggable Module?
The ABB 1SVR405662R4000 is a compact and reliable CR-U 41B pluggable function module designed for ABB CR-U universal relay sockets. This relay accessory combines reverse polarity protection, a free-wheeling diode function and a red LED status indicator, providing enhanced DC relay coil protection and clear visual monitoring in industrial control systems.
Part of the ABB CR-U interface relay accessory range, the module enables quick plug-in installation on compatible relay sockets. It is designed to simplify maintenance while improving reliability in PLC interfaces, automation panels and electrical control systems.
With a rated control supply voltage of 24–60 V DC, the ABB CR-U 41B module is suitable for applications requiring relay coil suppression, reverse polarity protection and operating status indication. Its compact construction allows efficient integration into industrial control cabinets.
Key Advantages
- Compact pluggable function module for ABB CR-U relay sockets.
- Integrated reverse polarity protection for DC relay coils.
- Built-in free-wheeling diode suppression.
- Red LED indication provides clear relay operating status.
- 24–60 V DC control supply compatibility.
- Quick plug-in installation reduces wiring effort and maintenance time.
Key Features
- ABB CR-U 41B pluggable function module.
- Compatible with ABB CR-U2S and CR-U3S relay sockets.
- Reverse polarity protection function.
- Free-wheeling diode protection.
- Red LED coil energisation indication.
- 24–60 V DC rated control supply voltage.
- Integrated diode and LED module design.
- Compact plug-in construction for relay accessories.
Reliable Relay Protection and Status Monitoring
The ABB 1SVR405662R4000 improves DC relay operation by protecting coils against incorrect polarity connection and suppressing voltage spikes generated during switching. The integrated red LED provides immediate visual confirmation when the relay coil is energised.
ABB CR-U pluggable modules are designed for modern automation systems requiring compact installation, reliable performance and simple maintenance. Their modular construction enables efficient integration into industrial control panels and relay-based systems.
Typical Applications
- Industrial automation control panels.
- PLC interface relay systems.
- Machine building and OEM equipment.
- Electrical control cabinets.
- DC relay switching applications.
- Industrial process control systems.
Technical Specifications
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| Device Type | Accessory | |
|---|---|---|
| Mounting Type | Plug-in socket | |
| Coil / Supply Voltage | 24 V DC, 48 V DC, 60 V DC | |
| Manufacturer | ABB | |
| Product type | Pluggable function module | |
| Series | CR-U | |
| Model | CR-U 41B | |
| Order code | 1SVR405662R4000 | |
| Function | Reverse polarity protection, free-wheeling diode and LED indication | |
| Control supply voltage | 24–60 V DC | |
| LED colour | Red | |
| 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 | 85411000 | |
| Country of Manufacture | China |
Frequently Asked Questions
What is the ABB 1SVR405662R4000 used for?
The ABB 1SVR405662R4000 is a CR-U 41B pluggable module used with ABB CR-U relay sockets to provide reverse polarity protection, free-wheeling diode suppression and red LED indication.
Which relay sockets are compatible with this module?
This module is designed for use with ABB CR-U2S and CR-U3S universal relay sockets.
What voltage range does the CR-U 41B support?
The module supports a rated control supply voltage of 24–60 V DC.
Does this module include LED indication?
Yes, the ABB CR-U 41B includes an integrated red LED indicator showing relay coil energisation status.
What protection functions are included?
The module provides reverse polarity protection and an integrated free-wheeling diode for DC relay coil protection.
Trusted by Automation Engineers Worldwide
ABB CR-U pluggable relay accessories provide reliable protection, indication and flexibility for industrial automation systems, helping engineers build dependable control solutions.
