FANUC: A20B-3900-0040
(Note: Corrected part number format - likely missing last digit) Type: Power Supply Unit
Function: • Base model DC power module • Generates 24V/5V for control circuits Compatibility: • Early FANUC 0i/16i/18i systems • Supports basic I/O modules Key Specs: • Input: 200-240V AC • Output: 24VDC (2A) + 5VDC • "0040" = Initial hardware version Warning: