Free Shipping Across the USA — Worldwide Delivery Available!
Palm Parts Solution
AccountQuote

CNC Systems SERIES

Fanuc CNC Mainboards (A03B)

CNC Mainboards (A03B) from Fanuc CNC Systems. New, refurbished & surplus with tested warranty. same-day quotes. Engineering support included.

Worldwide Shipping
Fast Dispatch
Warehouse Pickup
1-Year Warranty

Part of the Fanuc CNC Systems family.

Overview

CNC Mainboards (A03B)

CNC Mainboards (A03B) is part of the Fanuc CNC Systems family. Palm Parts Solution stocks CNC Mainboards (A03B) units in new, refurbished, and surplus condition, all with tested warranty and same-day quotes on available to quote catalog numbers.

Overview

CNC Mainboards (A03B) delivers the performance, connectivity, and I/O density required by modern industrial applications while retaining backward compatibility with earlier CNC Systems hardware where applicable. Typical deployments include OEM machinery, process skids, retrofit projects, and plant-wide control architectures built on the Fanuc ecosystem.

Why specify CNC Mainboards (A03B)

  • Tight integration with Fanuc engineering software
  • Documented spare-parts availability
  • Proven service life across heavy-duty industries
  • Compatible accessories: power supplies, communication adapters, terminal blocks

What Palm Parts Solution provides

  • Tested CNC Mainboards (A03B) catalog numbers available to quote
  • Cross-reference assistance for obsolete part numbers
  • Quotes on full CNC Mainboards (A03B) bills of material
  • Engineering support for replacements and migrations

CNC Mainboards (A03B) parts

Specifications

CNC Mainboards (A03B) technical reference

Each CNC Mainboards (A03B) catalog number has its own electrical, mechanical, and environmental specification. Use the search bar to locate an exact part number, or contact Palm Parts Solution with the catalog number on the nameplate for:

  • Input/output voltage and current
  • Communication protocols and network role
  • Form factor and mounting (DIN rail, panel, rack)
  • Operating temperature, humidity, vibration, IP rating
  • Certifications (UL, CE, ATEX, marine, etc.)
  • Compatible firmware and engineering software revisions

We can also supply OEM datasheets and wiring diagrams on request.

More from this series

Compatible series

Browse this product type

Frequently asked questions

What does the CNC Mainboards (A03B) series include?

The CNC Mainboards (A03B) series is part of the CNC Systems family from Fanuc. It groups related catalog numbers that share form factor, I/O type and communication protocol — making it easy to find drop-in replacements.

Is CNC Mainboards (A03B) compatible with newer Fanuc hardware?

In most cases yes. CNC Mainboards (A03B) units interoperate with current Fanuc programming software and communication backbones. Contact us with your firmware revision and we will confirm before shipping.

Can I get CNC Mainboards (A03B) parts refurbished with warranty?

Yes. We offer refurbished CNC Mainboards (A03B) modules tested to OEM specs with a 1-year replacement warranty. New surplus stock is also available when supply permits.

Machine down? Get a fast quote on the parts you need.

New, surplus, and refurbished industrial automation options. Request a quote or speak directly with an automation specialist for emergency sourcing.

Need a specific part?

Send us your part numbers — we'll respond the same business day with pricing and availability.

Are you an Electrical Distributor?Learn more about our distributor program

Palm Parts Solution sells used surplus products. Palm Parts Solution is not an authorized distributor, affiliate, or representative for the brands we carry. Products sold by Palm Parts Solution come with Palm Parts Solution's 1-Year Warranty and do not come with the original manufacturer's warranty. Designated trademarks, brand names and brands appearing herein are the property of their respective owners. This website is not sanctioned or approved by any manufacturer or tradename listed.

Read full disclaimer →