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1SDA104953R1 ABB YU-C XT5 W 480-525 V AC Undervoltage Release
ABB 1SDA104953R1 is a wired 480–525 V AC undervoltage release designed for withdrawable ABB SACE Tmax XT5 moulded case circuit breakers.
£128.03
Why Choose the ABB 1SDA104953R1 YU-C XT5 Undervoltage Release?
The ABB 1SDA104953R1, designated YU-C XT5 W 480...525 Vac, is a genuine ABB wired undervoltage release designed for withdrawable SACE Tmax XT5 moulded case circuit breakers. As part of the ABB SACE Tmax XT accessory range, it provides electrically controlled undervoltage protection by acting on the circuit-breaker operating mechanism when the control supply falls below the required operating level.
This YU-C release operates from a 480–525 V AC rated control supply and is specifically designed for the withdrawable XT5 circuit-breaker configuration. An undervoltage release ensures that the circuit breaker can only remain closed while sufficient control voltage is available, providing an important protective and control function within industrial electrical distribution systems.
Purpose-designed for the ABB SACE Tmax XT5 withdrawable configuration, the 1SDA104953R1 provides manufacturer-engineered compatibility with the corresponding circuit-breaker mechanism. Its compact dimensions of approximately 110 × 60 × 140 mm and net weight of approximately 0.12 kg make it suitable for integration into professional low-voltage switchgear and control assemblies.
Key Advantages
- Genuine ABB undervoltage release for Tmax XT5 circuit breakers.
- 480–525 V AC rated control voltage for compatible industrial electrical systems.
- Provides undervoltage protection through the circuit-breaker operating mechanism.
- Wired YU-C configuration for integration into the control circuit.
- Designed specifically for withdrawable XT5 circuit-breaker configurations.
- Suitable for industrial switchboards, automation systems and power distribution equipment.
Key Features
- ABB SACE Tmax XT accessory range.
- YU-C XT5 W 480...525 Vac product designation.
- Undervoltage release functionality.
- 480–525 V AC rated voltage.
- Designed for XT5 withdrawable circuit breakers.
- Wired construction for electrical control integration.
- Designed for use with AC control supplies.
- Suitable for low-voltage switchgear protection and control systems.
Reliable Undervoltage Protection for XT5 Circuit Breakers
An undervoltage release provides an electrical safety and control function by acting on the circuit-breaker mechanism when its control voltage drops below the level necessary for reliable operation. This allows the circuit breaker to respond to loss or significant reduction of the control supply and can help prevent equipment from remaining energised under unsuitable supply conditions.
The ABB 1SDA104953R1 provides this functionality for withdrawable Tmax XT5 circuit breakers. Its 480–525 V AC rating makes it suitable for compatible higher-voltage AC control circuits, while its wired YU-C configuration supports straightforward integration into industrial switchboards, machinery control systems and low-voltage power distribution assemblies.
Typical Applications
- Industrial low-voltage electrical switchboards.
- Power distribution and protection systems.
- Withdrawable ABB SACE Tmax XT5 circuit-breaker installations.
- Motor control centres and industrial control panels.
- Machinery requiring undervoltage protection.
- Automated electrical systems requiring circuit-breaker control during control-supply loss.
Technical Specifications
| Series | SACE Tmax XT |
|---|---|
| Product group | T-Max XT 250 Range |
| Model / order code | 1SDA104953R1 |
| Product designation | YU-C XT5 W 480...525 Vac |
| Product type | Wired undervoltage release |
| Accessory type | Undervoltage release |
| Product main type | Accessories for Tmax XT |
| Frame size | XT5 |
| Circuit-breaker configuration | Withdrawable |
| Current type | AC |
| Rated voltage | 480–525 V AC |
| Standards | IEC, UL |
| Dimensions (W × H × D) | approx. 110 × 60 × 140 mm |
| Net weight | approx. 0.12 kg |
| EAN | 8015644070458 |
| Customs tariff number | 85389099 |
Frequently Asked Questions
What is the ABB 1SDA104953R1 used for?
The ABB 1SDA104953R1 is a wired undervoltage release designed to provide undervoltage protection and electrical control functionality for compatible withdrawable ABB SACE Tmax XT5 circuit breakers.
What voltage is the ABB 1SDA104953R1 rated for?
The undervoltage release is rated for a 480–525 V AC control supply.
Which circuit breakers are compatible with the ABB 1SDA104953R1?
The 1SDA104953R1 is specifically designed for ABB SACE Tmax XT5 withdrawable circuit breakers.
What does a YU-C undervoltage release do?
A YU-C undervoltage release acts on the circuit-breaker operating mechanism when its control supply falls below the required level, providing undervoltage protection and controlled circuit-breaker opening.
Is the ABB 1SDA104953R1 a wired version?
Yes. The 1SDA104953R1 is a wired YU-C undervoltage release designed for the withdrawable XT5 circuit-breaker configuration.
Trusted ABB Circuit-Breaker Protection
ABB SACE Tmax XT electrical accessories provide engineered solutions for circuit-breaker protection and control, helping compatible Tmax XT breakers integrate reliably into industrial and commercial low-voltage power distribution systems.
