Here is a small listing of UL categorys
UL Product Categories by Category Code
Building Materials (AABM) ................................................................................................ 41
Fire Protection Equipment (AAFP) .................................................................................... 41
Heating, Cooling, Ventilating and Cooking Equipment (AAHC) .............................. 42
Equipment for Use in and Relating to Class I, II and III, Division 1 and 2
Hazardous Locations (AAIZ) ............................................................................................... 43
Electrical Equipment for Use in Ordinary Locations (AALZ) ..................................... 46
Mechanical Equipment and Associated Products (AAME) .......................................... 47
Equipment for Use in and Relating to Zone Classified Hazardous Locations
(AANZ) .................................................................................................................................... 48
Plumbing and Associated Products (AAPP) .................................................................... 51
Flammable and Combustible Liquids and Gases Equipment (AAPQ) .................... 52
Access Control System Units for Use in Hazardous Locations (AATF) ................... 53
Advertising Displays, Nonilluminated (AAVU) ............................................................ 53
Air Conditioning Equipment (AAYZ) ............................................................................... 54
Accessories, Air Conditioning Equipment (ABFY) ...................................................... 54
Accessories, Air Duct Mounted (ABQK) ........................................................................ 54
Air Conditioners, Packaged Terminal (ACKZ) ............................................................. 54
Air Conditioners, Room (ACOT) ..................................................................................... 55
Air Conditioners, Special Purpose (ACVS) .................................................................... 55
Packaged Terminal Air Conditioners, Replacement (ADAU) .................................... 56
Air Filtering Appliances (AEDX) ..................................................................................... 56
Dehumidifiers, Refrigeration Type (AFFT) .................................................................... 57
Electrostatic Air Cleaners (AGGZ) .................................................................................. 57
Evaporative Cooler Retrofit Pumps (AGIS) ................................................................... 58
Evaporative Coolers (AGNY) ........................................................................................... 58
Humidifiers (AHIV) ........................................................................................................... 58
Air Conditioning Equipment for Use in Hazardous Locations (AHSY) ................... 59
Air Conditioners for Use in Hazardous Locations (AIDR) ........................................ 59
Room Air Conditioners for Use in Hazardous Locations (AINU) ....................... 59
Air Filtering Appliances for Use in Hazardous Locations (AISX) ............................ 59
Air-sampling Equipment for Use in Hazardous Locations (ALOA) .......................... 59
Alarm System Units for Use in Hazardous Locations (ALSY) .................................... 59
Intrusion Detection Units for Use in Hazardous Locations (ARCX) ........................ 59
Alternators for Use in Hazardous Locations (ARDK) ................................................... 60
Amusement and Gaming Machines (ASMU) .................................................................. 60
Antenna Discharge Units (ASWA) .................................................................................... 60
Appliance Controls (ATNZ) ................................................................................................ 60
Appliance Outlet Centers (AUJZ) ...................................................................................... 61
Commercial Appliance Outlet Centers (AUUZ) ........................................................... 61
Residential Appliance Outlet Centers (AVGQ) ............................................................. 61
Arc-fault Circuit Interrupters (AVYI) ................................................................................ 61
Arc-fault Circuit Interrupters, Branch/Feeder Type (AVZQ) .................................... 62
Arc-fault Circuit Interrupters, Combination Type (AWAH) ...................................... 62
Arc-fault Circuit Interrupters, Cord Type (AWAY) ..................................................... 63
Arc-fault Circuit Interrupters, Outlet Branch Circuit Type (AWBZ) ........................ 63