2 VEGAPULS 6137991-EN-200303Contents1 Area of applicability ................................................................................................................. 42 General information ................................................................................................................. 43 Important specification in the type code............................................................................... 54 Technical data .......................................................................................................................... 65 Application conditions ............................................................................................................ 76 Protection against static electricity ....................................................................................... 87 Use of an overvoltage arrester ............................................................................................... 98 Grounding ................................................................................................................................. 99 Impact and friction sparks ...................................................................................................... 910 Material resistance .................................................................................................................. 911 Mounting with external display unit VEGADIS 61/81............................................................ 912 Removing and replacing the red threaded/dust cover ...................................................... 10Supplementary documentation:• Operating Instructions VEGAPULS 61• EU-type approval certificate PTB 03 ATEX 2089 X (Document ID: 37990)• EU declaration of conformity (Document ID: 43634)Editing status: 2020-02-28