Modular Terminal Blocks Catalogue 2012/2013

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Terminals, P-Series (PUSH IN technology) Terminals, Z-Series (Tension clamp technology) Terminals, W-Series, Stud terminals, SAK-Series (Screw connection technology) Shield connection terminals KLBÜ AccessoriesAppendix

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width X [mm] 1 0. Design the clearances and creepage distances in electrical equipment general W Technicalappendix W.25 2 1 3 1. For the design clearances and creepage distances, application of the regulations for insulation coordination produces the following interrelationships: Clearances Clearances are rated accordance with the following factors: • Anticipated overvoltage rated impulse withstand voltage • Used overvoltage protection precaution • Measures prevent pollution pollution severity Creepage distances Creepage distances are rated in accordance with the following factors: • Planned rated voltage • Insulation materials used insulation group • Measures prevent pollution pollution severity Slots are taken into account when measuring creepage distances their minimum width dimensioned according the following table: Pollution severity min.Electrical data Since April 1997 the sizing of clearances and creepage distances has been covered IEC 60664-1 “Insulation coordination for electrical equipment low-voltage systems”. The design data resulting from these provisions applicable specified in this catalogue for each product.5 4 2.16 1282250000 2012/2013 .5 If the associated clearance air is less than mm, the minimum slot width can reduced 1/3 the clearance

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