FANUC A03B-0808-C001 — Distributed I/O Interface Module

Part number	A03B-0808-C001
Brand	FANUC
Category	Communication Module
Description	Distributed I/O Interface Module
Manufacturer	FANUC
Product Type	Distributed I/O Interface Module
Product Line	A03B
Part Number	A03B-0808-C001
Weight	0.75 lbs (0.34 kg)
Communication Protocol	Supports FANUC I/O Link
Operating Voltage	24 VDC ±10%
Number of Communication Branches	Up to 8 distributed communication
Isolation Type	Photocoupler isolation
Environmental Operating Temperature	0°C to 45°C during operation; -20°C to 60°C for storage/transport
Heat Dissipation	Base heat value of 1.2 W with additional per-module thermal load
Connector Type	Honda MR connectors or equivalent
Maximum Current per Branch	500 mA (column A) and 1,500 mA (column B) per base unit
Pollution Degree Compliance	Rated for Pollution Degree 2 per EN50178 standards
Vibration Resistance	0.5G maximum during operation
Humidity Tolerance	≤75% relative humidity (normal); ≤95% for short-term exposure
Communication Speed	Optimized for FANUC I/O Link’s high-speed bit data transfer (up to 2 ms response)
Mounting Configuration	Vertical or horizontal base unit

The FANUC A03B-0808-C001 is a distributed I/O interface module designed for industrial applications. This unit operates on a 24 VDC supply, with up to eight communication branches available, facilitating effective data communication via the FANUC I/O Link protocol.

Compatibility data for this part number is being verified. Send an RFQ with your equipment model and serial — our suppliers confirm fitment before quoting.

Data compiled from 1 verified source. Last reviewed 2026-08-16.