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1SDA104948R1 ABB YU-C XT5 W 24–30 V AC/DC Undervoltage Release
ABB 1SDA104948R1 YU-C XT5 W is a wired 24–30 V AC/DC undervoltage release designed for compatible withdrawable ABB SACE Tmax XT5 circuit breakers.
£128.03
Why Choose the ABB YU-C XT5 W 24–30 V AC/DC Undervoltage Release?
The ABB YU-C XT5 W 24–30 V AC/DC, order code 1SDA104948R1, is a wired undervoltage release (UVR) designed specifically for compatible ABB SACE Tmax XT5 withdrawable circuit breakers. It provides automatic breaker opening when the control supply falls below the required operating level, supporting electrical protection and control in industrial power distribution systems.
As a YU-C wired undervoltage release, this accessory helps prevent a compatible circuit breaker from remaining closed when its control voltage is lost or falls significantly below its rated value. This operating principle makes undervoltage releases particularly useful in machinery, switchboards and automated installations where loss of control power must result in circuit interruption.
This specific version is designed for withdrawable (W) XT5 circuit breakers and operates from a 24–30 V AC or 24–30 V DC control supply. Its AC/DC compatibility provides flexibility when integrating the release into low-voltage industrial control and protection circuits.
Key Advantages
- Dedicated undervoltage release for ABB SACE Tmax XT5 circuit breakers.
- 24–30 V AC/DC rated control voltage for flexible control-system integration.
- Specifically designed for withdrawable (W) XT5 breaker configurations.
- Automatically supports circuit-breaker opening under undervoltage or control-supply loss conditions.
- Wired YU-C configuration for integration into electrical control circuits.
- Genuine ABB accessory engineered for the SACE Tmax XT platform.
Key Features
- ABB YU-C wired undervoltage release.
- Designed for the SACE Tmax XT5 frame.
- 24–30 V AC rated voltage range.
- 24–30 V DC rated voltage range.
- AC/DC actuating voltage compatibility.
- For withdrawable XT5 circuit breakers.
- Suitable for power circuit-breaker applications.
- Designed to applicable IEC 60947-2 and UL 489 requirements.
- ABB order code 1SDA104948R1.
Reliable Undervoltage Protection for Circuit Breaker Control
An undervoltage release monitors its auxiliary control supply and acts on the circuit-breaker mechanism when that voltage drops below the required operating level. This provides fail-safe behaviour for installations where loss or significant reduction of control voltage should cause the protected circuit to be disconnected.
The ABB YU-C 1SDA104948R1 is engineered specifically for withdrawable Tmax XT5 circuit breakers. Its 24–30 V AC/DC operating range makes it suitable for common low-voltage control systems used in industrial automation, machinery and electrical distribution equipment.
Typical Applications
- Industrial low-voltage switchboards.
- Withdrawable ABB Tmax XT5 circuit-breaker installations.
- Machinery safety and control systems.
- Automated power distribution equipment.
- Motor control centres and industrial panels.
- Control circuits requiring undervoltage-triggered breaker opening.
Technical Specifications
| Series | SACE Tmax XT |
|---|---|
| Order code | 1SDA104948R1 |
| Product type | Wired undervoltage release |
| Accessory type | Undervoltage release (UVR) |
| Frame size | XT5 |
| Breaker configuration | Withdrawable (W) |
| Rated AC voltage | 24–30 V AC |
| Rated DC voltage | 24–30 V DC |
| Voltage type | AC/DC |
| Standards | IEC 60947-2 / UL 489 |
| Net weight | 0.118 kg |
| EAN / GTIN | 8015644070403 |
| Product group | T-Max XT 250 Range |
Frequently Asked Questions
What is the ABB 1SDA104948R1 used for?
It is a wired YU-C undervoltage release designed to provide undervoltage-operated control of compatible ABB SACE Tmax XT5 withdrawable circuit breakers.
Which circuit breaker is the ABB 1SDA104948R1 designed for?
The release is specifically designed for compatible ABB SACE Tmax XT5 withdrawable circuit breakers.
What control voltage does the ABB YU-C 1SDA104948R1 support?
It is rated for a 24–30 V AC or 24–30 V DC control supply.
What does an ABB YU-C undervoltage release do?
An undervoltage release acts on the circuit-breaker mechanism when its control supply falls below the required operating level, helping disconnect the circuit during undervoltage or loss-of-control-power conditions.
Is the YU-C 1SDA104948R1 intended for fixed or withdrawable breakers?
This specific YU-C version is designed for withdrawable (W) ABB SACE Tmax XT5 circuit breakers.
Trusted ABB Circuit Breaker Accessories
ABB SACE Tmax XT electrical accessories provide engineered protection, control and operating functions for compatible moulded-case circuit breakers, supporting dependable integration into modern industrial and commercial power distribution systems.
