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ABB CR-U 91CV Varistor and LED Module
£4.38
Why Choose the ABB CR-U 91CV Pluggable Relay Module?
The ABB 1SVR405665R1100, also known as the ABB CR-U 91CV, is a compact pluggable function module designed for ABB CR-U universal relay sockets. This accessory module combines varistor overvoltage protection with a green LED status indication, improving relay protection while providing clear visual monitoring in industrial control systems.
Designed for the ABB CR-U interface relay series, the CR-U 91CV provides a convenient plug-in solution for enhancing relay functionality. The integrated varistor protects relay coils and control circuits against voltage spikes, while the green LED provides immediate indication of relay operation.
With a rated control supply voltage of 110–230 V AC / 110 V DC, the ABB CR-U 91CV is suitable for industrial automation systems, PLC interfaces, electrical control panels and relay assemblies requiring reliable protection and status indication.
Key Advantages
- Designed for ABB CR-U universal relay sockets.
- Integrated green LED indication for easy relay status monitoring.
- Provides varistor-based overvoltage protection.
- Compact plug-in design enables fast installation and replacement.
- Improves reliability of industrial relay control circuits.
Key Features
- ABB CR-U series pluggable function module.
- CR-U 91CV module with varistor and green LED.
- Rated control supply voltage: 110–230 V AC / 110 V DC.
- Integrated relay status indication.
- Overvoltage protection for relay coil circuits.
- Designed for universal CR-U relay socket mounting.
Reliable Relay Protection and Monitoring
The ABB CR-U 91CV enhances relay system performance by combining electrical protection and visual indication in one compact accessory module. The integrated varistor reduces the impact of transient overvoltages, helping protect switching components and improve long-term system reliability.
The green LED indication provides immediate feedback of relay operation, allowing technicians to quickly identify relay status and simplify troubleshooting in industrial automation environments.
Typical Applications
- Industrial automation control panels.
- PLC interface relay systems.
- Machine control equipment.
- Electrical switching cabinets.
- Factory automation installations.
- Control and monitoring circuits.
Technical Specifications
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| Device Type | Accessory | |
|---|---|---|
| Mounting Type | Plug-in socket | |
| Coil / Supply Voltage | 110 V AC, 110 V DC, 115 V AC, 120 V AC, 208 V AC, 220 V AC, 230 V AC | |
| Manufacturer | ABB | |
| Series | CR-U | |
| Model | CR-U 91CV | |
| Product ID | 1SVR405665R1100 | |
| Product type | Pluggable function module | |
| Application | Accessory for CR-U interface relays | |
| Function | Overvoltage protection and LED indication | |
| LED colour | Green | |
| Protection component | Varistor | |
| Rated control supply voltage | 110–230 V AC / 110 V DC | |
| Output | None | |
| Output signal | None | |
| Mounting type | Plug-in relay socket mounting | |
| Compatible series | ABB CR-U universal relay sockets | |
| Width | 34 mm | |
| Height | 24 mm | |
| Depth | 9 mm | |
| Weight | approx. 0.007 kg | |
| HS Code | 85480090 | |
| Country of Manufacture | China |
Frequently Asked Questions
What is the ABB CR-U 91CV used for?
The ABB CR-U 91CV is a pluggable relay accessory module that provides varistor overvoltage protection and green LED indication for ABB CR-U relay sockets.
What voltage does the CR-U 91CV support?
The CR-U 91CV supports a rated control supply voltage of 110–230 V AC / 110 V DC.
Which relay series is compatible with this module?
The CR-U 91CV is designed for use with ABB CR-U universal relay socket systems.
What protection does the CR-U 91CV provide?
The module provides overvoltage protection using an integrated varistor to help protect relay control circuits.
Trusted by Industrial Automation Engineers
ABB CR-U pluggable function modules provide dependable relay accessories for industrial automation, electrical panels and modern control applications.
