ABB UNS2881B-P.V1 (3BHE009319R0001)

Industrial Power Control Module

Product Overview

ABB UNS2881B-P.V1 (Part No.: 3BHE009319R0001) is a professional industrial power control module engineered for power systems, excitation equipment, medium-voltage converters and relay protection systems. As a core ABB component, it integrates high-precision signal acquisition, data processing and communication functions. It conducts real-time detection of voltage, current, temperature and other electrical parameters, delivering reliable hardware support for closed-loop control, status monitoring and safety protection of power equipment. It is widely deployed in power generation, power transmission & distribution, new energy and heavy industry automation sectors.

Key Features

1. High-Precision Signal Acquisition Equipped with a 16-bit high-speed ADC, it achieves a measurement accuracy of ±0.1% full scale. Compatible with standard analog signals, it features fast response and stable data output to meet the requirements of precision power measurement and control.
2. Multi-Channel Synchronous Detection It comes with 16 universal input channels. A full-channel scan takes only 1 ms with a sampling rate of 1 kHz, enabling synchronous collection of multiple electrical and temperature signals for multi-parameter monitoring under complex operating conditions.
3. High Insulation & Strong Anti-Interference The dielectric withstand voltage between channels and the main system reaches 1500 VDC. With enhanced protection against lightning, surge voltage and electromagnetic interference, it performs steadily in sites with heavy electromagnetic noise such as converter and motor clusters.
4. Stable Operation in Wide Temperature Range Designed for industrial use, it operates reliably from -40°C to +85°C. Adopting high-temperature resistant PCB materials and rated IP20 protection class, it works consistently under extreme temperature and harsh working environments.
5. Diversified Communication Compatibility Standard interfaces include RS-485 and optical fiber, supporting Modbus RTU and exclusive ABB protocols. Profibus-DP and EtherCAT are available as options for seamless connection with mainstream ABB main controllers and third-party control systems.
6. Easy Installation & Low Power Consumption It adopts standard 35mm DIN rail mounting with a compact structure. Powered by 24 VDC, it consumes low energy and allows simple installation, wiring and routine maintenance.

Technical Specifications

表格

Item	Specification
Model	UNS2881B-P.V1
Part Number	3BHE009319R0001
Product Type	Industrial Power Control Module
Core Configuration	32-bit RISC Processor, 16-bit High-Speed ADC
Input Channels	16 Universal Channels
Measurement Accuracy	±0.1% Full Scale
Sampling Frequency	1 kHz
Full Channel Scan Time	1 ms
Dielectric Withstand Voltage	1500 VDC (Channel to System)
Power Supply	24 VDC (20~30 V)
Operating Temperature	-40°C ~ +85°C
Protection Class	IP20
Communication Interfaces	RS-485, Optical Fiber; Optional: Profibus-DP, EtherCAT
Mounting Type	35mm DIN Rail

Typical Applications

• UNITROL series excitation control systems for generators
• ACS series medium-voltage variable frequency drives
• Power grid relay protection, transformer and line monitoring devices
• Grid-connected control systems for wind power, photovoltaic and energy storage
• Industrial power automation systems in metallurgy, chemical and large manufacturing industries

Product Advantages

• Genuine original ABB product. All units have passed rigorous reliability tests for long service life.
• Fully compatible with mainstream ABB power equipment and plug-and-play, effectively reducing system integration and commissioning costs.
• Compliant with industrial safety standards. The high-isolation design improves operational safety and ensures stable operation of the entire power system.