IEC 60393-5-2015 pdf free download.Potentiometers for use in electronic equipment – Part 5: Sectional specification – Single-turn rotary low-power wirewound and non-wirewound potentiometers. 1.4 Marking 1.4.1 General When coding is used for nominal resistance, tolerance and date of manufacture, the method shall be selected from those given in IEC 60062. The information given in the marking is normally selected from the following list: the relative importance of each item is indicated by its position in the list: a) nominal total resistance; b) tolerance on nominal total resistance; c) resistance law (if other than linear): d) detail specification and style reference; e) year and month (or week) of manufacture; f) details of shaft and bush (if not implicit in d) above). This may be in code form; g) manufacturer’s name and/or trademark; h) switch rated voltage (a.c. and d.c. ratings when appropriate); i) switch rated current (a.c. and d.c. ratings when appropriate); j) corresponding terminals (in the case of double pole switches), and terminals for connection to the mains supply; k) manufacturer’s type and designation. 1.4.2 Marking for potentiometers The potentiometer shall be clearly marked with a) and b) of 1,4.1 and with as many of the remaining items as is practicable. Any duplication of information in the marking of the potentiometer should be avoided. The switch, if fitted, shall be clearly marked with h), i) and j) of 1.4.1. 1.4.3 Marking for packaging The package containing the potentiometer(s) shall be clearly marked with a) to 9) and, II a switch is fitted to the potentiometer, with h) and i) of 1.4.1, and with the information below. a) quantity b) country origin 1.4.4 Additional marking Any additional marking shall be so applied that no confusion can arise. 2 Preferred ratings, characteristics and test seventies 2.1 Preferred characteristics 2.1.1 General The values given in the detail specification shall preferably be selected from the following: 2.1.2 Preferred climatic categories The potentiometers covered by this specification are classified into climatic categories according to the general rules given in IEC 60068-1:2013, Annex A.IEC 60393-5 pdf download.
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