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1SDA101981R1 ABB UVD XT5-XT6 110–125 V AC/DC Undervoltage Release Time Delay Device
ABB 1SDA101981R1 UVD is a 110–125 V AC/DC electronic time delay device for compatible undervoltage releases used with SACE Tmax XT5 and XT6 circuit breakers.
£321.21
Why Choose the ABB UVD XT5-XT6 110–125 V AC/DC Time Delay Device?
The ABB UVD XT5-XT6 110–125 V AC/DC, order code 1SDA101981R1, is an electronic time delay device for undervoltage releases designed for ABB SACE Tmax XT5 and XT6 circuit breakers. It provides a controlled delay for compatible undervoltage-release operation, helping prevent unnecessary breaker opening during brief voltage disturbances.
Designed specifically for the ABB SACE Tmax XT5 and XT6 platforms, this UVD accessory operates with a rated control voltage of 110–125 V AC/DC. It works in conjunction with the circuit breaker's undervoltage release to introduce an electronic time delay before release operation when the monitored supply voltage falls below the required level.
The UVD is particularly useful in industrial and commercial power-distribution systems where short-duration voltage dips may occur and immediate circuit-breaker opening is undesirable. Its dedicated Tmax XT compatibility provides a coordinated accessory solution for enhancing the behaviour of undervoltage protection systems.
Key Advantages
- Dedicated electronic time delay device for undervoltage releases.
- Designed for ABB SACE Tmax XT5 and XT6 circuit breakers.
- 110–125 V AC/DC rated voltage for compatible control circuits.
- Helps avoid unnecessary breaker operation during short-duration voltage disturbances.
- Works with the compatible undervoltage release to provide delayed release operation.
- Suitable for both AC and DC control supplies.
- Part of the coordinated ABB SACE Tmax XT accessory system.
Key Features
- ABB SACE Tmax XT electrical accessory.
- UVD electronic time delay device.
- Designed for undervoltage-release applications.
- Compatible with XT5 and XT6 circuit breakers.
- 110–125 V AC rated voltage.
- 110–125 V DC rated voltage.
- Electronic delayed operation for compatible undervoltage releases.
- Suitable for IEC and UL applications.
- ABB order code 1SDA101981R1.
Controlled Undervoltage Release Operation
An undervoltage release is used to open a circuit breaker when its control voltage falls below the required operating level. In installations where temporary voltage dips can occur, a time delay device can prevent an immediate response to short-lived disturbances while still allowing the undervoltage release to operate when the low-voltage condition persists.
The ABB UVD 1SDA101981R1 provides this electronic delay function for compatible XT5 and XT6 undervoltage-release installations. Its 110–125 V AC/DC control-voltage range makes it suitable for a variety of industrial control and power-distribution applications using the SACE Tmax XT platform.
Typical Applications
- ABB SACE Tmax XT5 circuit-breaker installations.
- ABB SACE Tmax XT6 circuit-breaker installations.
- Undervoltage-release control circuits.
- Industrial low-voltage switchboards.
- Commercial power-distribution assemblies.
- Critical electrical systems exposed to temporary voltage dips.
- Automation and power-control systems using 110–125 V AC/DC control supplies.
Technical Specifications
| Series | SACE Tmax XT |
|---|---|
| ABB order code | 1SDA101981R1 |
| Product type | Undervoltage release time delay device |
| Accessory type | Delay device for undervoltage release |
| Technology | Electronic time delay |
| Compatible breaker frames | XT5 / XT6 |
| Rated voltage | 110–125 V AC |
| Rated DC voltage | 110–125 V DC |
| Standards | IEC / UL |
| Reference standard | IEC 60947-2 |
| Net weight | 1.3 kg |
| UPC | 8056221020251 |
Frequently Asked Questions
What is the ABB UVD 1SDA101981R1 used for?
It is an electronic time delay device for an undervoltage release, designed to provide delayed release operation in compatible ABB SACE Tmax XT5 and XT6 circuit-breaker installations.
Which circuit breakers are compatible with ABB 1SDA101981R1?
The UVD time delay device is designed for ABB SACE Tmax XT5 and XT6 circuit breakers.
What voltage is the ABB UVD 1SDA101981R1 rated for?
This version is rated for 110–125 V AC and 110–125 V DC control supplies.
What does the UVD time delay device do?
It introduces an electronic delay into compatible undervoltage-release operation, helping prevent immediate breaker opening in response to brief voltage disturbances.
Is ABB 1SDA101981R1 an undervoltage release itself?
No. It is a time delay device for a compatible undervoltage release, rather than the undervoltage release itself.
Trusted ABB Circuit-Breaker Accessories
ABB SACE Tmax XT electrical accessories provide coordinated control and protection functions for low-voltage circuit breakers, helping engineers configure dependable switching and distribution systems for demanding industrial and commercial applications.
