| Attribute | Value |
|---|---|
| Product Name | ABB 3BHS Phase Control Thyristor |
| Brand | ABB |
| Model | 3BHS |
| Part Number | 126937 |
| Additional Code | 5STP 2718L0011 |
| Country of Origin | Swiss Made |
| Weight | 1.350 Kg |
| Condition | Used (48 Pcs) |
| Ref No | 57916 |
What is an ABB 3BHS Phase Control Thyristor?
The ABB 3BHS Phase Control Thyristor is a solid-state semiconductor device used for controlling the flow of electrical power by switching and regulating high-current signals. It works on the principle of “phase angle control,” which means it adjusts the conduction angle within each AC cycle to regulate power output.
The fact that thyristors can operate at high voltages, high currents, and under extreme conditions makes them very useful in power electronics. The improved stability and lower losses of the 3BHS variant from ABB ensure the extended operational life required in heavy-duty industrial and marine automation systems.
In simple terms, this is a high power electronic switch employed for the control of motors, heaters, drives, converters, and any other high power equipment.
Key Features of the ABB 3BHS Phase Control Thyristor
High Current & Voltage Handling
3BHS thyristor is targeted at demanding electrical loads, hence qualified for heavy-duty applications in large motors, power converters, and heavy machinery.
High Thermal Performance
Built with advanced ABB semiconductor technology, it provides excellent heat dissipation for continuous operation.
Robust Phase Angle Control
Provides high accuracy and smooth power regulation, which is critical for applications that involve variable speed motors or controlled heating.
Long Service Life
Its rugged construction provides resistance against electrical stress, thermal cycles, and harsh marine environments.
Low Power Loss
Efficient design leads to reduction in heating and wastage of energy, hence improving the overall efficiency of the system.
Compact & Easy to Integrate
With a standardized design, the 3BHS thyristor can be easily installed into existing industrial control systems or repair setups.
Quality Assurance from ABB
It meets the international standards of electrical safety and reliability, hence making it a preferred choice for automation professionals.
Applications
General applications of ABB 3BHS Phase Control Thyristor include industrial, marine, and energy-related fields. Its most common applications are listed below:
1. Variable Speed Drives (VSDs)
Used for speed and torque control applications in AC and DC motor drive systems.
2. Soft Starters
Reduces initial inrush current upon start-up with large motors, which helps protect electrical components and extends equipment life.
3. Power Converters & Rectifiers
Used in AC-to-DC conversion systems, UPS units, and industrial power supplies.
4. Heating & Temperature Control Systems
Suitable applications include industrial furnaces, dryers, heaters, and temperature-controlled processes using resistive heating.
5. Marine Automation Systems
Ships depend a lot on reliable power electronics; the phase control thyristors support critical applications like propulsion, winches, compressors, and navigation.
6. Battery Chargers
Supplies the battery with controlled charging currents, thus ensuring efficiency and safety.
7. Renewable Energy Systems
Often used in wind turbines, solar inverters, and power conditioning units.
8. Welding and Electroplating Equipment
Provides smooth, controlled current for specialty manufacturing processes.
Why choose the ABB 3BHS Phase Control Thyristor?
Selecting the appropriate power control device is critical to ensure reliability, efficiency, and safety in your automation systems. Here’s why the ABB 3BHS Thyristor stands out:
✔ Trusted Global Brand
With a wide product usage across the industrial and marine sectors, ABB is a global leader in automation and power technologies.
✔ Proven Reliability
This thyristor is consistent in extreme environments, whether for high-temperature zone applications, marine conditions, or high-load systems.
✔ Improved Operational Efficiency
It reduces energy wastage and improves machine performance by optimizing power flow.
✔ Lower Maintenance Costs
Robust construction guarantees long service intervals, reducing downtime and maintenance costs.
✔ Compatibility with Old & New Systems
Perfect for retrofits and new installations alike: ideal for repair technicians, OEMs, and system integrators. Supports Sustainability Efficient power regulation serves to reduce energy consumption and also cuts the carbon footprint.









