This publication also bears the number QC 410200 which is the specification number in the IEC Quality Assessment System for Electronic Components (IECQ). Prescribes standard ratings and characteristics, selects from IEC 393-1 the appropriate methods of test and gives general performance requirements for this type of potentiometer. Relates only to single-turn rotary type of power potentiometers with a rated power dissipation normally greater than or equal to 10 W.