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POWER SUPPLY APPARATUS FOR FIELD DEVICES

  • US 20080143190A1
  • Filed: 12/14/2006
  • Published: 06/19/2008
  • Est. Priority Date: 12/23/2005
  • Status: Active Grant
First Claim
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1. An apparatus for supplying DC power to at least one field device, comprising:

  • a multi-pole main switch having an input side receiving an AC voltage from a power mains and an output side supplying a switched AC voltage to output terminals of the apparatus;

    a power cable connecting the output terminals to the at least one field device; and

    a DC voltage supply device having an input side receiving the AC voltage from the power mains and a DC voltage output side connected via a two-pole switch to two of the output terminals of the apparatus, wherein the multi-pole main switch and the two-pole switch are ganged.

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