FANUC A03B-0819-C161 250 VAC / 30 VDC Relay Output Module m00021

The Fanuc A03B-0819-C161 is a 16 point relay output I/O module designated model AOR16G, manufactured in Japan and used within Fanuc Model A I/O Unit architecture. The module provides 16 channels of discrete relay output rated for 2 Amp switching at 250 VAC and 30 VDC, making it suitable for interfacing CNC controls with solenoids, contactors, indicator lamps, and similar field devices common in machine tool and industrial automation panels. It mounts to an ABU05A or ABU10A backplane base unit and is compatible with Fanuc Series 0, 16, 18, 21, 16i, 18i, and 21i CNC platforms, as well as Fanuc robotic systems and Power Mate controllers that rely on Model A I/O Unit topology. The unit is built around an internal printed circuit board carrying the relay banks and a terminal block for field wiring. CE and EMC compliance markings are visible on the nameplate. Part number A03B-0819-C161 and model designation AOR16G are stamped on the factory identification label, along with manufacturing date code 2003 11. Applications include CNC machining centers, lathes, turning centers, robotic work cells, material handling systems, electrical control panels, and OEM machine builder retrofits where direct replacement of an AOR16G output card is required. The carrier housing is bright Fanuc yellow with the standard top mounted terminal cover and side mounted backplane connector. Serial number N38771 is recorded on the nameplate for traceability.

Stock # 0226-021