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1SDA066390R1 ABB UVR XT1..XT4 60 V AC/DC Undervoltage Release
ABB 1SDA066390R1 is a 60 V AC/DC UVR undervoltage release designed for compatible SACE Tmax XT1, XT2, XT3 and XT4 circuit breakers.
£117.01
Why Choose the ABB UVR XT1..XT4 60 V AC/DC?
The ABB 1SDA066390R1 is a UVR undervoltage release designed for compatible ABB SACE Tmax XT1, XT2, XT3 and XT4 moulded case circuit breakers. Rated for 60 V AC/DC, it provides an electrically controlled undervoltage release function for compatible Tmax XT installations.
An undervoltage release is used to open a compatible circuit breaker when the release supply voltage is lost or falls below its operating threshold. This supports electrical control and safety schemes where breaker operation must respond to the availability of the control supply.
With compatibility across XT1 through XT4, ABB order code 1SDA066390R1 provides a clearly identified accessory for several frames within the Tmax XT platform. Its specified 60 V AC/DC rating makes control-voltage matching an important part of accessory selection.
Key Advantages
- Provides an undervoltage release function for compatible circuit breakers.
- Compatible with ABB SACE Tmax XT1, XT2, XT3 and XT4.
- Specified for 60 V AC/DC control supplies.
- Supports control schemes requiring breaker opening following loss or reduction of release supply voltage.
- Suitable for integration into switchboard and machine-control systems.
- Original ABB accessory from the T-Max XT 250 Range.
Key Features
- UVR undervoltage release.
- 60 V AC/DC rated control voltage.
- Compatible with Tmax XT1..XT4.
- Electrically operated circuit-breaker accessory.
- Designed for compatible undervoltage protection and control applications.
- Suitable for low-voltage electrical distribution assemblies.
- ABB order code 1SDA066390R1.
- ABB product group T-Max XT 250 Range.
Undervoltage Control for Tmax XT Circuit Breakers
An undervoltage release monitors its electrical supply as part of the circuit-breaker operating system. If the release voltage is lost or decreases sufficiently, the accessory causes the compatible breaker to open, supporting installations where continued breaker closure depends on the presence of the required control voltage.
The ABB 1SDA066390R1 is specifically rated for 60 V AC/DC and designed for compatible Tmax XT1 through XT4 breakers. It can therefore be incorporated into control architectures where this voltage and undervoltage release functionality are required.
Typical Applications
- ABB SACE Tmax XT undervoltage release applications.
- Industrial low-voltage switchboards.
- Electrical distribution and control panels.
- Machine control systems.
- Control-supply supervision schemes.
- Industrial and commercial electrical automation systems.
Technical Specifications
| Series | SACE Tmax XT |
|---|---|
| ABB order code | 1SDA066390R1 |
| Product type | Undervoltage release |
| Release designation | UVR |
| Compatible breaker frames | XT1, XT2, XT3, XT4 |
| Control voltage | 60 V AC/DC |
| Function | Undervoltage release |
| ABB product group | T-Max XT 250 Range |
Frequently Asked Questions
What is the ABB 1SDA066390R1?
It is a UVR undervoltage release designed for compatible ABB SACE Tmax XT1, XT2, XT3 and XT4 circuit breakers.
What voltage is the ABB 1SDA066390R1 rated for?
The UVR is specified for a control voltage of 60 V AC/DC.
Which Tmax XT breakers are compatible with this UVR?
ABB specifies the accessory for compatible Tmax XT1, XT2, XT3 and XT4 circuit breakers.
What does the UVR do?
The UVR is an undervoltage release that causes a compatible circuit breaker to open when the release supply voltage is lost or falls below its operating threshold.
Is the ABB 1SDA066390R1 a complete circuit breaker?
No. ABB 1SDA066390R1 is an electrical operating accessory for compatible Tmax XT circuit breakers rather than a complete circuit breaker.
Trusted by Electrical Distribution Professionals
ABB SACE Tmax XT electrical accessories provide coordinated control and operating functions for moulded case circuit breakers, supporting professional integration into industrial, commercial and OEM low-voltage distribution systems.
