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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Design the clearances and creepage distances in electrical equipment general W Technicalappendix W. width X [mm] 1 0.16 1282250000 2012/2013 .5 4 2.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”.5 If the associated clearance air is less than mm, the minimum slot width can reduced 1/3 the clearance. The design data resulting from these provisions applicable specified in this catalogue for each product. 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.25 2 1 3 1

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