Product Overview

The 3BHE024855R0101, designated as the UFC921 A101, is a specialized inverter control module developed by ABB for high-end excitation systems. Primarily utilized within the UNITROL product family, this board manages the critical conversion and regulation of electrical parameters required for synchronous generator excitation. Designed for seamless integration into Distributed Control Systems (DCS), the UFC921 A101 ensures precise field current control, contributing to the stability and reactive power management of power plant generators and large industrial motors. Its architecture is optimized for high-speed signal processing and long-term thermal stability.

Critical Hardware Parameters

• Part Number: 3BHE024855R0101

• Model Designation: UFC921 A101

• Module Function: Inverter and Excitation Control

• Net Weight: 0.32 kg

• Physical Dimensions: 33.3 x 15.8 x 3 cm

• Communication Interface: Multi-protocol support including Ethernet/IP and Profibus DP

• Thermal Management: Integrated aluminum heat sink for passive cooling

• Country of Origin: Sweden

• Export Classification: 8537101190 (HS Code)

Target Industry Applications

This inverter board is a vital component in power generation and heavy industry infrastructure where excitation control is paramount:

• Power Generation Facilities: Central to UNITROL excitation systems for controlling the field winding of large synchronous generators.

• Marine Propulsion: Managed power regulation for electric propulsion motors on large scale vessels.

• Heavy Industrial Processing: Used in synchro-motor drives for mining and cement mills to maintain power factor correction and motor efficiency.

• Substation Automation: Integrates with Ethernet-based DCS networks to provide real-time monitoring and routing of excitation data.