🔧 Product Overview
The ABB UNITROL 5000 is an excitation system control platform designed for synchronous generators and motors in power generation and industrial applications. The system provides voltage regulation, excitation control, monitoring, protection-related functions, and communication with higher-level plant control systems.
This listing identifies the unit as a UNITROL 5000 Excitation System Drive Control Panel with a rated capacity of 135 CV. The referenced part number is 3BHE009320P106, while the listing also identifies 3BHE009949R0001 as the MPN. Because UNITROL configurations can be application-specific, the complete nameplate and cabinet configuration should be checked before replacement.
ABB documentation describes UNITROL 5000 communication through interfaces such as RS485 and ARCnet, while optional higher-level communication can use protocols including Modbus, Modbus+ and Profibus.

⚙️ Key Features
- ABB UNITROL 5000 excitation system platform
- Excitation system drive/control panel configuration
- 135 CV capacity as listed
- Part number: 3BHE009320P106
- Additional MPN identified in the listing: 3BHE009949R0001
- Designed for synchronous generator excitation control
- Supports local and remote system operation depending on configuration
- Interfaces with excitation-system control and monitoring functions
- UNITROL 5000 architecture supports RS485 and ARCnet communications
- Suitable for power plant and industrial generator applications
- Intended for integration with the existing UNITROL system configuration
📋 Product Datasheet
| Parameter | Specification |
|---|---|
| Brand | ABB |
| Product Family | UNITROL 5000 |
| Product Type | Excitation System Drive Control Panel |
| Part Number | 3BHE009320P106 |
| Listed MPN | 3BHE009949R0001 |
| Capacity | 135 CV |
| Application | Excitation System / Generator Control |
| System Type | Static Excitation / Excitation Control Platform |
| Communication | RS485 / ARCnet, configuration dependent |
| Higher-Level Protocols | Modbus / Modbus+ / Profibus, configuration dependent |
| Control Interface | Local / Remote, configuration dependent |
| Condition | Used |
| Quantity | 1 unit |
| Weight | Approx. 5.720 kg as listed |
| Country of Origin | Unknown / not specified |
| Manufacturer | ABB |
🧠 Operating Function
The excitation system regulates the field excitation of a synchronous generator or motor. By controlling excitation, the system helps maintain the required generator voltage and supports stable operation under changing electrical load conditions.
The UNITROL 5000 architecture can provide operators with access to actual values, system parameters, alarms, events, and control functions. ABB documentation also describes a service panel connected through RS485 and an optional local control panel connected through ARCnet.
For plant-level integration, the excitation system can communicate with higher-level control equipment through suitable bus couplers. The exact communication hardware and protocol depend on the individual UNITROL configuration.
🛠️ Installation & Maintenance
Before installation, compare the existing excitation cabinet with the replacement unit. Check:
- Complete part number and revision
- Nameplate information
- Control cabinet wiring
- Connector positions
- Communication interfaces
- Existing UNITROL configuration
- Software and parameter configuration
- Generator/excitation system ratings
Do not connect the panel directly to an energized excitation cabinet. Excitation equipment can contain hazardous voltages and stored electrical energy, so installation and commissioning should be performed by qualified personnel.
For a replacement unit, record the existing system parameters before removing the original panel whenever the system condition permits. After installation, verify communication, alarms, measured values, control commands, and the transition between local and remote operating modes.
ABB’s UNITROL 5000 documentation also describes PC-based commissioning and service through an optical connection and CMT software.
❓ Common Questions
Q: What is the ABB UNITROL 5000 used for?
A: It is an excitation control system used with synchronous generators and motors to regulate and monitor field excitation.
Q: What does 3BHE009320P106 identify?
A: It is the part number referenced for this particular UNITROL 5000 control panel configuration.
Q: Is 3BHE009949R0001 the same number?
A: The referenced listing identifies 3BHE009949R0001 as the MPN and 3BHE009320P106 as another part number. Always compare the physical nameplate and complete system configuration before treating two units as interchangeable.
Q: Is this unit new?
A: No. The referenced listing specifies the condition as Used.
Q: Can it be installed into any UNITROL 5000 system?
A: Not necessarily. UNITROL systems are configured according to generator rating, excitation arrangement, control hardware, software, and communication requirements. The replacement should be matched against the original system configuration.
Q: Does UNITROL 5000 support remote communication?
A: Yes. ABB documentation describes communication options including RS485, ARCnet and higher-level protocols such as Modbus, Modbus+ and Profibus, depending on the installed configuration.
🔄 10 Related ABB UNITROL Models / Components
- ABB UNITROL 5000 Excitation System
- ABB UNITROL 6000 Excitation System
- ABB UNITROL F Excitation System
- ABB UNITROL 1000 Excitation System
- ABB UNITROL 5000 LCP Local Control Panel
- ABB UNITROL Excitation Control Terminal (ECT)
- ABB UNITROL 5000 Service Panel (SPA)
- ABB UNITROL 5000 Voltage Regulator
- ABB UNITROL 5000 Power Converter / CIN Module
- ABB UNITROL 5000 Excitation System Communication Interface
🏭 Application Summary
The UNITROL 5000 is commonly associated with generator excitation systems where stable voltage regulation, excitation control, monitoring, and plant-level communication are required. ABB positions the UNITROL family for power-generation and industrial applications, including demanding generator control environments.
For maintenance inventory, 3BHE009320P106 should be stored with its complete identification information and original system details. For a replacement project, matching only “UNITROL 5000” is not sufficient; the part number, configuration, interface arrangement, and system ratings should all be verified before installation.






