ABB KUC755AE105 3BHB005243R0105 Drive Power Supply Module

Technical Specifications Model: KUC755AE105 Part Number: 3BHB005243R0105 Input: Three‑phase 380‑480 V AC Output DC Bus Voltage: Corresponding to rectified AC input voltage Maximum Output Current: 105 A Cooling Method: Forced air cooling with built‑in fan Power Conversion Efficiency: 94 % typical Back‑plane Interface: Rack‑mount back‑plane signal connector Operating Temperature: 0 ℃ to +55 ℃ Storage Temperature: ‑40 ℃ to +85 ℃ Relative Humidity: 5‑95 %, non‑condensing Protection Class: IP20 Certifications: CE, UL

Functional Features Three‑phase full‑wave rectification and DC bus energy‑stabilizing function for drive main circuit. Built‑in hardware over‑voltage, under‑voltage, over‑current and over‑temperature protection logic. Fan speed automatic adjustment according to internal module temperature. Multi‑bit LED status indicators display power‑on, running and fault alarm information. On‑board self‑diagnosis monitors input phase loss, fan failure and internal component abnormality. Back‑plane signal interface uploads fault code to main drive control board. Supports rack plug‑in installation for drive cabinet assembly.

Application Scenarios Power‑supply spare‑part replacement for ABB large‑capacity AC drive unit. DC‑bus power supply for heavy‑duty motor variable‑frequency control in metallurgy, mining and power plant. Maintenance renewal for industrial power conversion equipment of legacy ABB automation platform.

Installation Requirements Insert module fully into designated drive cabinet rack slot and lock mechanical fixing screws. Complete three‑phase AC power‑in wiring and DC‑bus output power wiring according to terminal definition. Ensure forced‑air cooling airflow path is unobstructed without blocking ventilation grille. Implement protective earthing strictly complying with drive cabinet grounding specification. Ambient operating temperature shall maintain within 0 ℃ ~ +55 ℃ without condensation. Verify input phase‑sequence and insulation resistance before power‑on test. Check fan rotation function after power‑on.