Description: in Hertz (Hz) specified by the manufacturer for the normal usage of a generator, and the accessory or associated equipment; Name: rated frequency
Description: Clarification of the object to a certain frequency which repeats itself regularly; Name: Nominal frequency
Description: Allocation of the devices according to deployment site and cause of the hazard. NOTE: The Group II operating media are further subdivided into explosion groups and temperature classes; Name: Explosion protection device group of the pump