Fanuc A20B-0008-0440/03A PCB Control Board – CNC Main Circuit Board

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Fanuc A20B-0008-0440/03A is an original industrial PCB control board manufactured in Japan for Fanuc CNC systems. This board is part of the A20B series and is designed for integration into Fanuc CNC control cabinets and machine tool automation systems.

The board features multiple TTL logic ICs (HD74 series, SN74LS series), high-density connectors, and integrated circuit arrays typical for Fanuc CNC main processing or interface modules. Built on a heavy-duty industrial-grade PCB with gold-plated contacts, it ensures stable signal processing and long operational life in demanding factory environments.

This module is suitable for:

Fanuc CNC machine tools

Industrial machining centers

Automated production lines

Legacy Fanuc control retrofits

Key Features:

Manufacturer: Fanuc

Model: A20B-0008-0440

Variant: /03A

Type: Industrial Control PCB Board

Country of Origin: Japan

Application: CNC control systems

Construction: Multi-layer PCB with DIP logic ICs

Mounting: Rack-mounted industrial system board