3-21002-4
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10855353-3-21002-4
SCREW,CAP,SOCKET,BUTTON HEAD
The center distance from one pole to the next.
The measurement of insulation resistance is carried out by means of a megohmmeter – high resistance range ohmmeter. A general rule-of-thumb is 10 Megohm or more.
RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.