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1SDA054886R1 ABB UVR T4-T5-T6 480…500 Vac Undervoltage Release
ABB UVR T4-T5-T6 480…500 Vac undervoltage release accessory for Tmax T4, T5 and T6 moulded case circuit breakers providing automatic opening protection.
£196.69
Why Choose the ABB UVR T4-T5-T6 480...500 Vac Undervoltage Release?
The ABB UVR T4-T5-T6 480...500 Vac (order code 1SDA054886R1) is a dedicated undervoltage release accessory designed for ABB Tmax T4, T5 and T6 moulded case circuit breakers. As part of the ABB Tmax T series accessory range, it provides automatic circuit breaker opening functionality when the control voltage falls below the required operating level.
This accessory enables compatible Tmax circuit breakers to respond automatically to undervoltage conditions using a 480...500 V AC control supply. It is designed for electrical systems where protection against supply voltage loss or instability is required.
The UVR T4-T5-T6 480...500 Vac extends ABB Tmax circuit breaker functionality by providing dependable undervoltage protection for industrial, commercial and infrastructure low-voltage distribution applications.
Key Advantages
- Dedicated ABB Tmax T4/T5/T6 accessory for undervoltage protection.
- 480...500 V AC control operation suitable for higher-voltage control systems.
- Automatically opens the circuit breaker during undervoltage conditions.
- Improves electrical system safety and protection coordination.
- Supports integration with industrial control and protection systems.
- Manufactured by ABB for reliable Tmax circuit breaker compatibility.
Key Features
- ABB Tmax T accessory series.
- Undervoltage release design.
- Control voltage: 480...500 V AC.
- Suitable for ABB Tmax T4, T5 and T6 circuit breakers.
- Provides automatic circuit breaker opening during undervoltage events.
- Designed for industrial low-voltage switchgear applications.
- Supports enhanced circuit breaker control functionality.
Reliable Undervoltage Protection for Low-Voltage Systems
The ABB UVR T4-T5-T6 480...500 Vac undervoltage release enhances Tmax circuit breaker performance by monitoring the control supply and initiating breaker opening when the voltage falls outside acceptable operating conditions. This helps protect electrical equipment against unstable supply situations.
ABB Tmax accessories allow electrical engineers and panel builders to customise circuit breaker assemblies with additional safety and control functions while maintaining compatibility with ABB low-voltage protection equipment.
Typical Applications
- Industrial electrical distribution systems.
- Control panels and switchboards.
- Motor protection installations.
- Automation and process control systems.
- Motor control centres.
- Commercial and infrastructure power systems.
Technical Specifications
| Order code | 1SDA054886R1 |
|---|---|
| Product type | Undervoltage release accessory |
| Product family | Tmax T moulded case circuit breaker accessories |
| Suitable for | ABB Tmax T4, T5 and T6 circuit breakers |
| Control voltage | 480...500 V AC |
| Function | Automatic circuit breaker opening on undervoltage condition |
| Installation type | Internal circuit breaker accessory |
| Application | Low-voltage protection and control systems |
Frequently Asked Questions
What is the ABB UVR T4-T5-T6 480...500 Vac used for?
The ABB UVR T4-T5-T6 480...500 Vac is an undervoltage release used to automatically open compatible ABB Tmax T4, T5 and T6 circuit breakers when the control voltage falls below the required level.
Which circuit breakers is this accessory compatible with?
This undervoltage release is designed for ABB Tmax T4, T5 and T6 moulded case circuit breakers.
What control voltage does this release require?
The accessory operates with a 480...500 V AC control supply.
What function does an undervoltage release provide?
An undervoltage release opens the circuit breaker automatically when the control voltage falls below the operating threshold.
Where is this accessory typically installed?
The release is installed internally within compatible ABB Tmax circuit breakers used in switchboards and low-voltage distribution systems.
Trusted by Industrial Power Professionals
ABB Tmax accessories are widely selected by electrical engineers and panel builders for dependable circuit breaker integration, flexible installation and reliable low-voltage power distribution performance.
