Why Choose the ABB YO XT5-XT6 Shunt Opening Release?
The ABB 1SDA104926R1, also known as the YO XT5-XT6 Shunt Opening Release, is a genuine ABB electrical accessory designed to provide remote opening (shunt trip) of compatible ABB SACE Tmax XT5 and XT6 moulded-case circuit breakers. When an appropriate control voltage is applied, the release instantly trips the breaker, making it ideal for emergency stop circuits, fire protection systems and remote switching applications.
Designed for permanent service, the accessory operates from a wide control voltage range of 110–240 V AC or 110–250 V DC. It integrates directly into compatible XT5 and XT6 circuit breakers without requiring external modifications, maintaining the reliability and performance expected from the ABB Tmax XT platform.
As an original ABB accessory, the YO shunt opening release enables safe remote disconnection of electrical circuits for industrial automation, machine safety, building management systems and emergency isolation functions.
Key Advantages
Provides reliable remote electrical tripping of compatible ABB circuit breakers.
Designed for ABB SACE Tmax XT5 and XT6 MCCBs.
Wide operating voltage of 110–240 V AC and 110–250 V DC.
Ideal for emergency stop and remote isolation systems.
Original ABB accessory ensuring perfect mechanical compatibility.
Simple installation inside compatible breakers.
Supports industrial automation and safety applications.
Designed for continuous (permanent service) operation.
Key Features
ABB YO XT5-XT6 shunt opening release.
Manufacturer Part Number: 1SDA104926R1.
Compatible with ABB SACE Tmax XT5 and XT6 MCCBs.
Remote opening (shunt trip) function.
110–240 V AC operating voltage.
110–250 V DC operating voltage.
Permanent service version.
Original ABB modular accessory.
Compact internal installation.
Manufactured in accordance with IEC 60947-2.
Reliable Remote Circuit Breaker Operation
The ABB YO XT5-XT6 shunt opening release enables remote disconnection of electrical circuits whenever an external control signal is applied. It is commonly integrated into emergency shutdown systems, fire alarm interfaces, process automation equipment and access control systems where immediate electrical isolation is required.
By using an original ABB accessory, installers benefit from full compatibility with Tmax XT circuit breakers while maintaining the manufacturer's specified performance and operational reliability.
Typical Applications
Emergency stop systems.
Industrial automation.
Building management systems.
Fire alarm interfaces.
Motor control centres.
Industrial switchboards.
Power distribution systems.
ABB Tmax XT5 and XT6 installations.
Technical Specifications
Voltage
240 V
Manufacturer
ABB
Series
SACE Tmax XT Accessories
Model
YO XT5-XT6
Product ID
1SDA104926R1
EAN
8015644070182
Product type
Shunt Opening Release
Accessory function
Remote electrical opening
Compatible circuit breakers
ABB Tmax XT5 and XT6
Operating voltage (AC)
110–240 V
Operating voltage (DC)
110–250 V
Voltage type
AC / DC
Version
Permanent service
Net weight
Approx. 0.17 kg
Standard
IEC 60947-2
HS Code
85389099
Country of Manufacture
Italy
Frequently Asked Questions
What is the ABB 1SDA104926R1 used for?
It is a shunt opening release that allows compatible ABB Tmax XT5 and XT6 circuit breakers to be tripped remotely using an electrical control signal.
Which circuit breakers is it compatible with?
It is designed for ABB SACE Tmax XT5 and XT6 moulded-case circuit breakers.
What operating voltage does it require?
The accessory operates on 110–240 V AC or 110–250 V DC.
What is a shunt opening release?
A shunt opening release is an electrical accessory that remotely trips a circuit breaker when the specified control voltage is applied.
Is this a complete circuit breaker?
No. It is an accessory that fits inside compatible ABB Tmax XT5 and XT6 moulded-case circuit breakers.
Trusted ABB Tmax XT Accessories
ABB SACE Tmax XT accessories are trusted by electrical engineers, panel builders and industrial contractors for dependable remote operation, enhanced safety and reliable circuit protection.
Voltage
240 V
Manufacturer
ABB
Series
SACE Tmax XT Accessories
Model
YO XT5-XT6
Product ID
1SDA104926R1
EAN
8015644070182
Product type
Shunt Opening Release
Accessory function
Remote electrical opening
Compatible circuit breakers
ABB Tmax XT5 and XT6
Operating voltage (AC)
110–240 V
Operating voltage (DC)
110–250 V
Voltage type
AC / DC
Version
Permanent service
Net weight
Approx. 0.17 kg
Standard
IEC 60947-2
HS Code
85389099
Country of Manufacture
Italy
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
Trusted Manfacturers
● frequently asked questions
Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
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We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...