Products Description
FANUC AOR16G 16PT Relay Output Module P/N A03B-0819-C161

Technical Specifications
Model:A03B-0819-C161
Brand:FANUC
System compatibility:AOR16G 16-point relay output module for FANUC Series16i,Series18i,Series21i CNC systems. Plug-in unit for A03B-0819 ABU05A / ABU10A I/O base rack. Widely used on CNC lathes and vertical machining centers.
Function:16-channel mechanical relay output module. Each relay channel supports 2A load,rated 250VAC or 30VDC. Receives CNC logic control commands and switches external loads such as solenoid valves,indicators and auxiliary relays via I/O Link bus. Relay isolation separates CNC control circuit and field power circuit.
Installation:Plug into slot of ABU series I/O base rack,screw terminal block for field wiring.
Interface:
‑Backplane bus connector for ABU I/O rack
‑16 relay output channels
‑Screw terminal block for field load wiring
‑LED status indicator for each channel
‑24VDC power supply terminal
Circuit feature:Relay drive circuit,contact isolation,surge absorption protection for relay contacts.
Feature:Discontinued legacy FANUC relay I/O module. Mechanical relay isolated output,suitable for AC and DC mixed field loads. Common faults:relay contact burnout,contact sticking,terminal corrosion. Confirm ABU base rack and CNC system before replacement.
Diagnostic:LED indicators show each channel working status;relay contact damage will cause load no action and I/O signal abnormality in CNC system.
Power supply:24VDC,per channel max 2A
Protection class:IP20
Horizontal operating temperature:0℃ ~ +55℃
Storage temperature:-20℃ ~ +80℃
Relative humidity:5%‑90% non‑condensing
Vibration:Complies with machine tool industrial environmental requirement
Weight:0.37kg
Dimensions:130mm ×85mm ×30mm
Certification:CE,UL

Built‑in function
A03B-0819-C161 AOR16G relay output module receives CNC control instructions and switches external field loads through mechanical relay contacts. Widely used for CNC machine electrical cabinet spare‑part replacement.
Product Brief
A03B-0819-C161 belongs to FANUC A03B series I/O spare parts family,AOR16G 16-channel relay output module with contact isolation. Verify ABU base rack and CNC system software version before ordering. Inspect relay contact status and load current during commissioning. Widely applied for CNC equipment maintenance and renovation. ESD anti‑static protection shall be followed during installation.