ABB UNS2881B-P,V1 3BHE009319R0001

Product Overview

ABB UNS2881B-P,V1 with part number 3BHE009319R0001 is the MUB (Measurement Unit Board), a critical high-precision signal acquisition PCB designed for ABB UNITROL 5000 generator excitation control system. This board collects real-time analog signals including generator voltage, excitation current and temperature data, converts field sensor signals into digital data, then transmits processed data to the main control CPU. It provides galvanic isolation between field sensors and control circuit to suppress high voltage surge and electromagnetic interference, ensuring stable closed-loop excitation regulation for synchronous generators. Built-in self-diagnosis function helps operators quickly identify faults in power generation control cabinets. Widely used for replacement and overhaul of legacy ABB excitation systems in power plants.

Key Features

1. Part No: 3BHE009319R0001, Model: UNS2881B-P,V1 MUB Measurement Unit Board
2. Designed for ABB UNITROL 5000 generator excitation system
3. Multi-channel high precision analog signal sampling for voltage, current and temperature
4. 32-bit RISC processor for fast deterministic real-time signal processing
5. Galvanic isolation between field side and control circuit
6. Support multiple signal types: 0-10V, 4-20mA, Pt100 temperature sensors
7. Multi communication protocols: Modbus RTU, Profibus DP
8. Built-in self-diagnostic and fault LED indicator
9. 24V DC power supply, low power consumption
10. Rugged PCB construction, anti-vibration for power station cabinet environment
11. DIN rail mounting, easy installation inside excitation cabinet

Technical Specifications

Application Fields

ABB UNS2881B-P,V1 3BHE009319R0001 MUB board is mainly deployed for power generation excitation control cabinet maintenance: ✅ Thermal power plant synchronous generator UNITROL 5000 excitation cabinet ✅ Hydropower station generator excitation control system ✅ Cogeneration plant & backup power generation unit ✅ Power plant excitation system retrofit and spare replacement ✅ Heavy industry self-owned power station control cabinet ✅ DCS and SCADA system signal interface

Matching Accessories

• UNITROL 5000 main control board
• Excitation thyristor power modules
• Signal wiring harness and terminal blocks
• Optical communication cables
• Other UNITROL series spare boards

Our Service

We supply original ABB UNS2881B-P,V1 (3BHE009319R0001) MUB measurement unit board and full series UNITROL excitation spare parts. ✔ Ready stock for power plant maintenance project ✔ Original part inspection and function testing ✔ Datasheet, wiring diagram and replacement guide available ✔ Technical support for excitation cabinet troubleshooting and commissioning ✔ Bulk quotation for power station EPC and maintenance contractors

Contact us for quotation, stock status and full datasheet of ABB UNS2881B-P,V1 3BHE009319R0001.