IEC 60335-2-37 Ed. 5.0 b:2002

Deals with the safety of electrically operated commercial deep fat fryers including pressurized types used in restaurants, canteens, hospitals and commercial enterprises such as bakeries, butcheries, etc (not intended for household use). The rated voltage being not more than 250 V for single-phase appliances connected between one phase and neutral and 480 V for other appliances.