ABB UFC921A101 3BHE024855R0101 Varnished Control Board

Technical Overview

The ABB UFC921A101 (3BHE024855R0101) is a high-reliability INT-2 (Interface) control board specifically designed for integration into ABB’s high-power electronics and excitation systems. This "Varnished" version features a protective conformal coating, significantly enhancing its resistance to moisture, dust, and chemical contaminants.

Detailed Technical Specifications

The UFC921A101 is manufactured to the following industrial performance standards:

• Part Number: 3BHE024855R0101

• Model Designation: UFC921A101 (INT-2 Board)

• Manufacturer: ABB

• Protection Level: Varnished / Conformal Coated (For enhanced environmental resilience)

• Condition: New & Original in Factory Packing

• Warranty: 12 Months Factory Warranty

• Function: Interface and signal processing for power electronics

• Compatibility: Native support for ABB Unitrol and high-power drive series

• Origin: Swiss-engineered for critical infrastructure applications

Core Features and Operational Benefits

• Environmental Hardening: The specialized varnished coating protects sensitive onboard micro-components from "creeping" currents and corrosion, making it ideal for facilities with high humidity or airborne particulates.

• High-Speed Signal Integrity: Designed as an INT-2 interface board, it facilitates rapid data exchange between the main controller and field-level power components, reducing latency in protection and regulation loops.

• Reliable Logic Execution: Utilizes industrial-grade semiconductors to maintain timing accuracy and logic stability even in high-electromagnetic interference (EMI) zones near large generators or motors.

• Simplified Replacement: Standardized form factor and connector layout allow for rapid onsite hardware swaps, minimizing downtime in critical power distribution systems.

• Long-Term Durability: Adheres to ABB’s stringent 3BHE series quality standards, ensuring a long operational lifecycle and consistent thermal performance.