ABB AOFC-02 Output Filter Absorption Board

ABB AOFC-02 Inverter Output Surge Absorption Filter Board, Original Part Codes: 3AFE68295459 / 68295505 B 1/2, ACS800 Multi-Drive Series Power Filter PCB Core Function AOFC-02 is a dedicated passive filter absorption circuit board installed inside ABB ACS800 multi-drive power units: Core Function AOFC-02 is a dedicated passive filter absorption circuit board installed inside ABB ACS800 multi-drive power units: Absorbs high-voltage spike surges generated by IGBT switching during PWM operation to suppress dv/dt noise and voltage transients. Protects power module IGBT chips, DC bus capacitors and drive internal control boards from overvoltage breakdown. Comprises three built-in RC absorption filter assemblies to smooth high-frequency switching ripple on three-phase inverter output circuits.