Automatic Electrical Controls for Household and Similar Use; Part 2: Particular Requirements for Motor Starting Relays
standard by Underwriters Laboratories, 02/01/2002
Electrical Apparatus for Explosive Gas Atmospheres – Part 15: Electrical Apparatus with Type of Protection 'n'
standard by Underwriters Laboratories, 02/15/2013
Safety requirements for electrical equipment for measurement, control, and laboratory use – Part 2-101: Particular requirements for in vitro diagnostic (IVD) medical equipement
standard by Underwriters Laboratories, 07/31/2019