Basis : IEC 60317-0-1 Metic Sizes (R20 Series)

Nominal Conductor Diameter Conductor Tolerance Minimum Increase due to insulation Maximum Overall Diameter
Grade 1 Grade 2 Grade 3 Grade 1 Grade 2 Grade 3
(mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm)
[Dynamic Content]



  • For intermediate nominal diameters the min. increase figure corresponding to the next larger dia. shall be taken.