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1SDA104947R1 ABB YU-C XT5 W 12 V DC Undervoltage Release
ABB 1SDA104947R1 is a wired 12 V DC YU-C undervoltage release designed for compatible SACE Tmax XT5 withdrawable circuit breakers.
£128.03
Why Choose the ABB 1SDA104947R1 YU-C XT5 W 12 V DC Undervoltage Release?
The ABB 1SDA104947R1 is a YU-C wired undervoltage release designed specifically for ABB SACE Tmax XT5 withdrawable circuit breakers. Rated for a 12 V DC control supply, it provides voltage-dependent circuit-breaker operation for installations where the breaker must respond automatically to a significant reduction or loss of the monitored auxiliary voltage.
An undervoltage release is energised during normal operation and acts on the circuit-breaker mechanism when its supply voltage falls below the required operating level. This functionality is particularly useful where equipment must be disconnected following control-power loss and where unwanted circuit-breaker reclosing must be prevented until adequate voltage has been restored.
The YU-C designation identifies the wired version of ABB's undervoltage release, while the W designation identifies compatibility with the XT5 withdrawable configuration. As a genuine SACE Tmax XT accessory, the 1SDA104947R1 provides a manufacturer-engineered solution for integrating undervoltage-dependent operation into industrial and commercial power-distribution systems.
Key Advantages
- Genuine ABB SACE Tmax XT5 electrical accessory.
- YU-C wired undervoltage release for voltage-dependent breaker operation.
- Designed specifically for XT5 withdrawable circuit breakers.
- Rated for a 12 V DC control supply.
- Supports automatic circuit-breaker response following significant control-voltage reduction or loss.
- Purpose-designed for electrical and mechanical integration with the SACE Tmax XT5 platform.
Key Features
- ABB SACE Tmax XT accessory range.
- YU-C undervoltage release.
- Wired configuration.
- XT5 frame compatibility.
- Designed for withdrawable (W) circuit breakers.
- 12 V DC rated voltage.
- Provides undervoltage-dependent circuit-breaker operation.
- Suitable for low-voltage switchgear and automated distribution systems.
- Specified to IEC 60947-2 and UL 489.
Reliable Undervoltage Operation for Tmax XT5 Circuit Breakers
An undervoltage release provides a voltage-sensitive interface with the circuit-breaker operating mechanism. When the release is correctly energised, normal breaker operation is permitted; if its supply voltage falls sufficiently, the release acts on the mechanism so that the circuit breaker opens. This behaviour can help place connected equipment into a defined state following loss of control power.
The ABB 1SDA104947R1 provides this functionality specifically for SACE Tmax XT5 withdrawable circuit breakers. Its wired construction and 12 V DC rating make it suitable for switchboards and control systems using low-voltage DC auxiliary supplies while retaining manufacturer-matched integration with the XT5 platform.
Typical Applications
- ABB SACE Tmax XT5 withdrawable circuit breakers.
- Industrial low-voltage switchboards.
- Power distribution and protection panels.
- Systems requiring breaker response to loss of auxiliary control voltage.
- Automated machinery and process-control installations.
- Switchgear using 12 V DC auxiliary control circuits.
Technical Specifications
| Series | SACE Tmax XT |
|---|---|
| Order code | 1SDA104947R1 |
| Alternate catalogue number | KXT5YUCW0 |
| Product type | Undervoltage release (UVR) |
| Release designation | YU-C |
| Compatible frame | XT5 |
| Circuit-breaker configuration | Withdrawable |
| Version | Wired |
| Rated voltage | 12 V DC |
| Current type | DC |
| Reference standards | IEC 60947-2, UL 489 |
| Approvals | IEC, UL |
| GTIN / UPC | 8015644070397 |
| Product net weight | 0.118 kg |
Frequently Asked Questions
What is the ABB 1SDA104947R1 used for?
The ABB 1SDA104947R1 is a wired YU-C undervoltage release designed to provide voltage-dependent operation of a compatible ABB SACE Tmax XT5 withdrawable circuit breaker.
What voltage is the ABB 1SDA104947R1 rated for?
The 1SDA104947R1 is rated for a 12 V DC control supply.
Which circuit breaker is compatible with the ABB 1SDA104947R1?
This release is designed specifically for ABB SACE Tmax XT5 withdrawable circuit breakers.
What does YU-C mean on the ABB 1SDA104947R1?
YU identifies the undervoltage release and YU-C identifies the wired version. This particular model is configured for the XT5 withdrawable circuit-breaker execution.
Which standards apply to the ABB 1SDA104947R1?
ABB specifies the 1SDA104947R1 with reference to IEC 60947-2 and UL 489, with IEC and UL approvals.
Engineered for ABB SACE Tmax XT Systems
ABB SACE Tmax XT undervoltage releases provide dependable voltage-sensitive circuit-breaker operation, helping switchboard builders integrate control-supply monitoring and automatic breaker response into industrial low-voltage distribution systems.
