A02B-0285-B801 Compact Fanuc Control Unit Designed To Meet Production Versatility Needs – Fanuc Controller

FANUC A02B‑0285‑B801 – 1‑Slot Stand‑Alone Basic CNC Control Unit (21/210i‑B)

The FANUC A02B‑0285‑B801 serves as the foundational chassis for the 21i‑B and 210i‑B CNC control series. This fan-cooled, panel-mount basic unit is designed without electronics or display modules and requires additional PCBs, software, and operator interface components for full functionality.

Key Features of A02B‑0285‑B801

• Single-slot standalone chassis compatible with FANUC 21i‑B / 210i‑B controls

• Internal fan draws air from the bottom and exhausts from the top for efficient thermal management 

• Core exchange required—available new or refurbished; software reload & PCB integration needed

• Equipped with a battery backup tray (internal lithium or external D-cell option) – annual replacement recommended 

Typical Applications of A02B‑0285‑B801

• OEM control builds, custom CNC cabinet systems

• Retrofits in lathes, milling centers, or machining cells needing 21i‑B control

• Spare part for service inventories to minimize downtime

Main Advantages of A02B‑0285‑B801

• Space-efficient setup with a compact 1-slot design

• Modular flexibility—build your system by adding CPU, PMC, display, and I/O boards as needed

• Durable design—engineered for industrial shop-floor endurance with easy fan and PCB access

• Lifecycle support—core exchange promotes cost efficiency and long-term use

Technical Specifications of A02B‑0285‑B801

The FANUC A02B‑0285‑B801 is a dependable, compact core chassis designed for 21i‑B-series CNC systems. With efficient cooling, modular expansion paths, and industrial-grade build, it’s perfect as a backbone unit for OEM builds, retrofits, or maintenance spares. Core exchange support ensures cost-effective lifecycle management.