



Automated Switching Control Solution for Low-Voltage Circuit Breaker Systems
The ABB 1SDA104879R1 Motor Operator is an electrically driven actuator designed for remote operation of ABB molded case circuit breakers within the Tmax XT series. It enables automated switching functions, allowing circuit breakers to be controlled from a distance through a stable low-voltage control signal.
This motor operator is commonly used in industrial power distribution systems where operational efficiency, remote control capability, and system reliability are essential. Its design supports integration into modern electrical panels, enabling consistent switching performance and improved operational safety in controlled environments.
Technical Configuration & Product Profile
| Parameter | Specification |
|---|
| Manufacturer | ABB |
| Model Number | 1SDA104879R1 |
| Product Type | Motor Operator |
| System Series | Tmax XT (XT5 frame) |
| Function | Remote mechanical switching actuator |
| Control Voltage | 24 V DC |
| Operating Mode | Electrical motor-driven operation |
| Reset Type | Automatic reset functionality |
| Mechanical Interface | Circuit breaker actuator coupling |
| Installation Type | Front-mounted accessory integration |
| Electrical Category | Low-voltage control accessory |
| Operating Temperature | -25°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Construction | Industrial-grade electromechanical unit |
| Dimensions | Approx. 106 × 94 × 149 mm |
| Weight | Approx. 1.36 kg |
Typical Application Environments
The ABB 1SDA104879R1 Motor Operator is used in electrical systems requiring remote-controlled switching of circuit breakers.
Common applications include:
- Industrial power distribution panels
- Electrical control rooms
- Data center power systems
- Utility distribution infrastructure
- Manufacturing plant electrical networks
- Building energy management systems
- Critical load switching systems
- Backup power distribution setups
- Remote-controlled switchgear systems
- Industrial automation power control panels
Engineering Advantages & Operational Value
Remote Switching Capability
Enables safe and efficient remote operation of circuit breakers without manual intervention.
Stable Electromechanical Performance
Designed for consistent actuation of breaker mechanisms under industrial conditions.
Seamless System Integration
Built specifically for ABB Tmax XT circuit breaker platforms.
Improved Operational Efficiency
Reduces downtime by enabling remote switching and reset functions.
Compact Industrial Design
Allows integration into standard electrical distribution panels.
Reliable Long-Term Operation
Engineered for repeated switching cycles in industrial environments.
Enhanced System Control Flexibility
Supports centralized control strategies in modern electrical networks.
Technical FAQs
1. What is the main function of this motor operator?
It enables remote electrical operation of ABB circuit breakers.
2. Which circuit breaker series is it compatible with?
It is designed for ABB Tmax XT series, particularly XT5 frames.
3. What is the control voltage?
It operates on 24 V DC control power.
4. Can it perform automatic reset functions?
Yes, it supports automatic reset operation depending on system configuration.
5. Where is it typically installed?
It is installed directly on compatible molded case circuit breakers.
6. What industries use this device?
It is used in industrial power distribution, utilities, and infrastructure systems.
7. Is it suitable for continuous operation?
Yes, it is designed for repeated industrial-duty switching cycles.
8. Does it require manual operation?
No, it is intended for remote and automated operation.
9. Can it be used in retrofit systems?
Yes, it is commonly used in system upgrades and modernization projects.
10. Why is this motor operator widely used?
Because it improves operational safety, remote control capability, and switching efficiency in electrical distribution systems.