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  • Users: rush1
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  1. rush1

    Define terminal blocks

    IEC electrical drafting standards. What is the basis/reference is used to define terminal blocks and connectors, with the numeral preceding the X designator? For example: 3X, 1 for a terminal block of set 3, ….and X3, 14 (pin) for a 25 connector position . The standards defines putting the “3”...
  2. rush1

    Schematic, Pneumatic abbreviations

    IEC standard electrical/pneumatic circuit diagrams. I need abbreviaton/reference designators for pneumatic symbols, specially for tube fittings....
  3. rush1

    IEC class designation letters

    I need help with the IEC class designation letters for the electrical graphical symbols for diagrams. Please, any ideas where can be found? Thank you.

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