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A02B-0309-B502 Fanuc Module Offers Reliable CNC Automation Performance With Optimized Stability For Machining Applications – Fanuc System

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FANUC A02B‑0309‑B502 – 0i‑C Control Basic Unit (2‑Slot)

The FANUC A02B‑0309‑B502 is a core control chassis designed for FANUC 0i-MC (0i‑C) CNC systems. This unit provides the essential platform for control circuitry and operator interfaces, available in 2-slot format—with all PCBs and software to be added separately.

Key Features of A02B‑0309‑B502

Core basic unit for FANUC 0i-MC (0i‑C) control systems—2 available slots for PCBs/display integration 
Modular architecture—ships empty; requires CPU, display, memory, and I/O cards plus firmware reload
Core-exchange & repair options available—OEM new, refurbished, or remanufactured with warranties
Industrial-grade design with fan cooling and rugged panel-mount chassis
Discontinued by FANUC, but widely stocked by aftermarket suppliers with core exchange and testing programs

Typical Applications of A02B‑0309‑B502

Control core for CNC milling machines, lathes, and machining centers powered by 0i‑C systems
OEM builds and control cabinet integrations
Retrofit projects for replacing aging or damaged 0i‑C chassis
Maintenance spare for fast factory recovery through core-exchange stocking

Main Advantages of A02B‑0309‑B502

Flexible and expandable—build out control systems to match exact project needs
Cost-efficient core-exchange—reduced replacement cost and minimized downtime
Thoroughly tested reliability—refurbished units include load testing, warranties (2 years common), and fast shipping
Global aftermarket support—supplied by experts like Radwell and MRO Electric

Technical Specifications of A02B‑0309‑B502

Parameter	Details
Model Number	A02B‑0309‑B502 (0i‑C basic control unit, 2 slots)
System Compatibility	Compatible with FANUC 0i‑MC / 0i‑C Series
Slots	Two PCB/display module slots
Chassis Style	Panel-mount, fan-cooled
Weight	~5.68 lb (2.58 kg)
Warranty	Typically 2 years (aftermarket)
Availability	Discontinued by FANUC, available new or rebuilt via aftermarket vendors

The FANUC A02B‑0309‑B502 is the ideal control chassis platform for building or refurbishing FANUC 0i‑C CNC systems. Highly modular, it supports full customization and cost-effective core-exchange refurbishments backed by robust testing and warranties. A perfect fit for OEMs, retrofit projects, and maintenance spares.