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1SDA069064R1 ABB UVR XT1..XT4 48 Vac/dc Undervoltage Release
ABB 1SDA069064R1 is a 48 V AC/DC undervoltage release for compatible SACE Tmax XT1, XT2, XT3 and XT4 moulded case circuit breakers.
£117.01
Why Choose the ABB UVR XT1..XT4 48 Vac/dc Undervoltage Release?
The ABB UVR XT1..XT4 48 Vac/dc, order code 1SDA069064R1, is an undervoltage release accessory designed for ABB SACE Tmax XT1, XT2, XT3 and XT4 moulded case circuit breakers. Operating at a rated control voltage of 48 V AC/DC, it enables the compatible circuit breaker to open automatically when the release supply voltage falls below the prescribed operating threshold or is lost.
The UVR provides an important control and safety function within low-voltage distribution systems. When the undervoltage release is not energised, the associated circuit breaker cannot be closed, helping prevent unintended re-energisation while the required control voltage is absent. The accessory can also be incorporated into suitable control circuits to provide remote emergency opening functionality.
This uncabled UVR version is suitable for compatible Tmax XT1 through XT4 fixed and plug-in circuit-breaker installations. It is rated for both 48 V AC and 48 V DC operation and is designed in accordance with the applicable ABB Tmax XT accessory system for dependable integration into industrial and commercial switchboards.
Key Advantages
- Dedicated undervoltage release for ABB Tmax XT1, XT2, XT3 and XT4 circuit breakers.
- 48 V AC/DC rated control voltage for flexible control-circuit integration.
- Automatically initiates breaker opening following sufficient loss or reduction of control voltage.
- Prevents the compatible circuit breaker from closing while the UVR is not energised.
- Suitable for fixed and plug-in Tmax XT circuit breakers.
- Can support remote emergency opening through an appropriately designed control circuit.
Key Features
- ABB SACE Tmax XT accessory.
- Undervoltage release (UVR).
- 48 V AC rated voltage.
- 48 V DC rated voltage.
- Compatible with XT1, XT2, XT3 and XT4.
- Uncabled version.
- Designed for compatible fixed and plug-in breaker configurations.
- Complies with IEC 60947-2 and UL 489.
Reliable Undervoltage Protection and Remote Opening Control
An undervoltage release monitors its control supply and causes the associated circuit breaker to open when the voltage falls sufficiently below its nominal level or disappears. This functionality is useful where equipment must be disconnected following a control-power failure and where automatic reconnection without restoration of the control supply must be prevented.
The ABB 1SDA069064R1 provides this functionality for compatible Tmax XT1 through XT4 circuit breakers using a 48 V AC/DC control supply. Its integration with the Tmax XT platform makes it suitable for switchboards, machinery and distribution systems requiring coordinated circuit-breaker control and undervoltage response.
Typical Applications
- ABB Tmax XT1, XT2, XT3 and XT4 circuit-breaker installations.
- Industrial low-voltage switchboards.
- Machine and equipment electrical distribution systems.
- Control circuits requiring undervoltage-initiated breaker opening.
- Commercial building power distribution panels.
- Remote emergency circuit-breaker opening arrangements.
Technical Specifications
| Series | SACE Tmax XT |
|---|---|
| ABB order code | 1SDA069064R1 |
| Product type | Undervoltage release (UVR) |
| Rated AC voltage | 48 V AC |
| Rated DC voltage | 48 V DC |
| Compatible frames | XT1 / XT2 / XT3 / XT4 |
| Version | Uncabled |
| Compatible execution | Fixed / plug-in |
| Standards | IEC 60947-2 / UL 489 |
| Product net weight | 0.123 kg |
Frequently Asked Questions
What is the ABB 1SDA069064R1 used for?
It is an undervoltage release that enables a compatible ABB Tmax XT circuit breaker to open when the UVR control voltage falls sufficiently or is lost.
What voltage does the ABB 1SDA069064R1 require?
The undervoltage release has a rated control voltage of 48 V AC or 48 V DC.
Which ABB circuit breakers are compatible with 1SDA069064R1?
The UVR is designed for compatible ABB SACE Tmax XT1, XT2, XT3 and XT4 moulded case circuit breakers.
What happens if the ABB UVR is not energised?
When the undervoltage release is not energised, the compatible circuit breaker cannot be closed, helping prevent re-energisation until the required control voltage is restored.
Can ABB 1SDA069064R1 be used for remote emergency opening?
Yes. The UVR can be incorporated into a suitable control circuit so that interruption of its supply initiates remote opening of the circuit breaker.
Is ABB 1SDA069064R1 a cabled undervoltage release?
No. This order code identifies the uncabled UVR version for compatible Tmax XT1 through XT4 circuit breakers.
Trusted by Electrical Distribution Professionals Worldwide
ABB SACE Tmax XT circuit breakers and control accessories are widely used in industrial and commercial low-voltage systems to provide dependable protection, switching and coordinated circuit-breaker control.
