Description
The ABB QHFD 410 Governor Power Unit is a power amplifier and actuator control unit used in ABB DEGO II electronic speed governor systems for marine diesel engines and industrial engine applications. It receives control signals from the electronic governor control unit and regulates actuator current to position the fuel rack actuator according to the required engine speed and load command.
The QHFD 410 works together with ABB QHFD series governor controllers and ASAC 200 actuators. It provides actuator drive power, position regulation, manual increase/decrease control, and monitoring functions for reliable engine speed regulation.

QHFD 410
Product Specifications
| Parameter | Description |
|---|---|
| Brand | ABB |
| Model | QHFD 410 |
| Product Type | Governor Power Unit / Actuator Control Unit |
| Series | ABB DEGO II Electronic Governor System |
| Function | Actuator power amplification, fuel rack position control, governor output regulation |
| Compatible Controller | ABB QHFD 111 / QHFQ 113 Governor Control Units |
| Compatible Actuator | ABB ASAC 200 Actuator |
| Application | Marine diesel engine speed control and generator engine regulation |
| Control Function | Actuator current control, position regulation, manual increase/decrease operation |
| Internal Components | Power amplifier, monitoring board, transformer, control electronics |
| Power Supply | AC input through governor power system transformer |
| Output | DC actuator control power |
| Mounting Type | Engine control cabinet / governor panel installation |
| System Platform | ABB DEGO II Speed Governor |
| Place of Manufacture / Origin | Sweden |
| Product Status | Legacy Marine Spare Part |
| Condition | Used |
| Dimensions | Approx. industrial control cabinet module format |
| Weight | Approx. 27 kg |
| Country of Origin | Sweden |
| Power Requirements | System-dependent AC supply |
Key Features
✅ Original ABB DEGO II governor system component
✅ Controls actuator current for precise fuel rack positioning
✅ Provides stable engine speed and load regulation
✅ Supports manual actuator positioning functions
✅ Designed for marine propulsion and generator applications
✅ Suitable for ABB legacy engine control system maintenance
Applications
• Marine main engine governor systems
• Diesel propulsion control
• Ship generator engine control
• Power plant diesel generator systems
• Sulzer / Wärtsilä engine speed control applications
• ABB DEGO II electronic governor installations
Frequently Asked Questions
❓ Q: What is the ABB QHFD 410 used for?
A: The QHFD 410 is a governor power unit used to drive and regulate the actuator in ABB DEGO II electronic speed governor systems. It controls actuator current and adjusts fuel rack position according to commands from the governor control unit.
❓ Q: Is the QHFD 410 a PLC module?
A: No. It is a dedicated engine governor power unit designed for actuator control rather than PLC logic processing.
❓ Q: Which ABB governor systems use the QHFD 410?
A: The QHFD 410 is used in ABB DEGO II systems together with QHFD/QHFQ governor control units and ASAC 200 actuators.
❓ Q: What is the function of the QHFD 410 power stage?
A: It provides power amplification and actuator control, converting governor commands into actuator movement for engine fuel regulation.
❓ Q: Can the QHFD 410 replace another governor power unit directly?
A: Replacement should be verified by governor system configuration, actuator type, wiring, and engine application before installation.
Recommended ABB Related Models
- ABB QHFD 111 – DEGO II Electronic Governor Control Unit
- ABB QHFQ 113 – DEGO III Governor Control Unit
- ABB ASAC 200 – Engine Fuel Rack Actuator
- ABB QHFD 202A – Governor Monitoring Board
- ABB QHFD 201 – Governor Terminal Board
- ABB QHFD 221 – Governor Basic Board
- ABB GWD 0915-T – Governor Power Unit Variant
- ABB GWD 1815 – Power Amplifier for ASAC 200 Actuator
- ABB QHFD 410/411 Series – Governor Power Unit Family
- ABB DEGO II Electronic Governor System – Marine Engine Control Platform
- ABB DEGO III Governor System – Advanced Engine Speed Control Platform
- ABB ASAC 400 Actuator – Engine Control Actuator Variant
- ABB SLDF 181 Transformer – Governor Power Supply Transformer
- ABB Marine Engine Control Units – Propulsion Automation Components
- ABB Marine Governor Spare Parts Series – DEGO System Replacement Components
