Honeywell 621-9931 Description Description Honeywell I/O Rack Power Supply 115/230 VAC Related products HONEYWELL C7027A1031 HONEYWELL DM106-0-A-00-0-R-1-00000-000-E0 HONEYWELL STD924-A1A-00000-MB.3H+XXXX HONEYWELL 621-3550 HONEYWELL 620-0041 HONEYWELL 621-9990