Note; All products on this site are special products, the market price has been fluctuating, the specific customer service offer shall prevail, because the product is a new product, the picture is not a real shot, please confirm with customer service before placing an order model and product, price and other details, the site used, new are for sale, please contact customer service communication. ABB UNITROL 1005-0011 ECO 3BHE043576R0011 is a compact IGBT-based automatic voltage regulator under the UNITROL 1000 series. As the smallest standard voltage regulation unit of this product line, it is applicable to excitation voltage regulation for synchronous generators and synchronous motors with capacities ranging from 100 kVA to 80 MVA, featuring a rated continuous excitation current of 5 A and suitable for harsh complex working conditions including general industrial, marine and rail transit environments.
The equipment adopts a split communication and control processor architecture and is equipped with standard Ethernet and USB communication ports. It runs only the basic ECO version control software, targeting power generation supporting projects with cost sensitivity and simplified functional requirements. Parameter configuration and fault data retrieval can be realized via the CMT1000 commissioning tool. The whole unit complies with CE, DNV/GL and rail industry relevant certifications, and delivers long-term stable operation under high-vibration and wide-temperature-range conditions.
DOCUMENT DOWNLOAD
UNITROL 1005-0011 3BHE043576R0011.pdf

Full Model Code Breakdown
Equipment Model: UNITROL 1005-0011 ECO
UNITROL: Unified product series name for all ABB excitation automatic voltage regulators.1005: Hardware specification identifier, indicating the unit has a rated continuous excitation current of 5 A. It is the lowest power rating within the UNITROL 1000 series, without separate auxiliary power terminals or local operator panel.0011: Software configuration version code corresponding to the basic ECO software package.ECO: Software function grade marker, signifying only core functions including basic voltage regulation, protection and current limiting are available, without advanced functions such as extended logging, synchronisation and reactive power sharing.
Material Code: 3BHE043576R0011
3BHE: Unified material prefix for ABB excitation control products.043576: Unique serial number exclusive to the UNITROL 1005 hardware main unit.R0011: Unique suffix matching the 0011 hardware configuration and ECO software version for accurate procurement and spare part matching.
Hardware Parameters & Features
Rated continuous excitation current: 5 A; short-term peak excitation current of 10 A at ambient temperature up to 70°C.Digital I/O allocation: 8 digital inputs and 4 digital outputs; only 2 analog output channels.Communication interfaces: USB and Ethernet only; RS485 and CAN bus are not supported.No separate auxiliary power terminals and no local LCD operator panel.Overall ingress protection rating: IP20, compatible with wide-range AC/DC power supply input.Three-colour status LED indicators: Green for power-on normal operation, yellow for excitation activation, red for device alarms.Supports wiring cables up to 4 mm; terminals rated for continuous current of 30 A.

Application Industries
Onshore Power Generation
Diesel generator sets, small gas turbine generator units and micro hydropower generator sets for backup power stations with capacities from 100 kVA to medium-small scale.
Marine Industry
Synchronous motors for ship auxiliary power supply and small marine electric propulsion synchronous equipment.
Railway Locomotives
Synchronous excitation voltage regulation devices matched for diesel-electric locomotives.
Wind Power Industry
Excitation control for direct-drive small synchronous wind turbines.
Industrial Equipment
High-power synchronous motors in factories and variable-frequency speed control synchronous drive equipment.

FAQ
Q1: Can UNITROL 1005-0011 ECO (3BHE043576R0011) realize reactive power sharing for multiple parallel generators?A1: No. This model only comes with the ECO software package without the reactive power sharing function offered in the BASIC version. UNITROL 1010 BASIC or higher models are required for reactive power regulation of parallel units.
Q2: Does this device support the optional PSS (Power System Stabilizer) function?A2: It is not supported. PSS is an optional extended function only available for UNITROL 1010 and 1020. The hardware and software architecture of UNITROL 1005 is incompatible with this module.
Q3: Is it possible to modify internal parameters when the device has no external power supply on site?A3: Yes. The USB port can power the controller separately. Connect to a computer with CMT1000 software to modify parameters and export fault logs.
Q4: Are 3BHE043576R0011 and 3BHE043576R0011 hardware interchangeable?A4: Their main hardware structures are completely identical, differing only in built-in software versions: R0011 is ECO version and R0012 is LIGHT version. Select the correct part number according to project functional requirements during procurement and replacement.
Q5: The red alarm LED flashes continuously. What are the quick troubleshooting steps?A5: Connect a computer running CMT1000 to retrieve the device event log and check fault codes. Then troubleshoot three common faults in sequence: short circuit in excitation circuit, generator terminal voltage out of range, and loose wiring terminals.
Q6: Under what generator capacity conditions is UNITROL 1005 not recommended?A6: This model is not recommended if the generator’s continuous excitation current exceeds 5 A, single unit capacity exceeds 10 MVA, grid synchronization is required, or multiple generators operate in parallel. Choose UNITROL 1010 or 1020 instead.
Recommended Products of the Same Brand
UNITROL 1005-0011 ECO 3BHE043576R0011
UNITROL 1005-0012 LIGHT 3BHE043576R0012
UNITROL 1010-0002 LIGHT 3BHE035301R0002
UNITROL 1010-0003 BASIC 3BHE035301R0003
UNITROL 1020-0003 BASIC 3BHE030579R0003
UNITROL 1020-0006 FULL 3BHE030579R0006
UNITROL 1020-0007 FULL + PSS 3BHE030579R0007
UNITROL 6000 LIGHT Thyristor-Type Automatic Voltage Regulator
UNITROL 6000 MEDIUM Static Excitation System
UNITROL 6000 X-POWER High-Power Static Excitation System
UNITROL 1010 Compact IGBT Voltage Regulator
UNITROL 1020 High-Performance IGBT Voltage Regulator
UNITROL 1000 Series General-Purpose Excitation Regulator
