Assembly with screws

If the Terminal Base should be mounted with screws, Wall Mounting Accessories TA526 Wall Mounting Accessory TA526 must be inserted at the rear side first. These plastic parts prevent bending of the Terminal Base while screwing on. TB51x needs one TA526, TB52x and TB54x need two TA526.

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Fastening with screws of the Terminal Base TB521-ETH (as an example)

  1. The 2 Wall Mounting Accessories TA526 are snapped on the rear side of the Terminal Unit like DIN rails. The arrows point to the middle of the Terminal Base. 1 TA526 is turned by 180°.

  2. 2 accessories for wall mounting inserted

  3. Terminal Base, fastened with screws

Note

By wall mounting, the Terminal Base is earthed through the screws. It is necessary that

  • the screws have a conductive surface (e.g. steel zinc-plated or brass nickel-plated)
  • the mounting plate is earthed
  • the screws have a good electrical contact to the mounting plate