Siemens Industry Online Support
Siemens AG
Entry type: FAQ Entry ID: 102840331, Entry date: 10/19/2015

How do you find the UL certificates for SIMATIC modules?

  • Entry
  • Associated product(s)
The following instructions show you how to find the UL certificate on our Support pages taking the example of an S7-1500 digital input module (article number: 6ES7 521-1BL00-0AB0).


  1. Via the following internet address you start our Support pages or you enter the address for the Industry Online Support in the address line of your Internet Explorer:
  2. At the top right of the support page you enter the article number of the module to be found (here: 6ES7 521-1BL00-0AB0) and click the magnifying glass icon to start the search.

    Fig. 1
  3. In the dialog that opens you click the product link (6ES7 521-1BL00-0AB0) to reach the product page of the module.

    Fig. 2
  4. Under the filter criteria for entries you select the "Entry type" and then filter for "Certificate".


    If you are looking specifically for the UL certificates, then set to the filter under "Approval office" to UL.

    Fig. 3
  5. Open the required entry in the list displayed.
    In this example it is the entry entitled 18966540"Certificates General Product Approval, UL, UL" (for USA).

    Fig. 4
  6. Click "Display" or "Download" to open or download the document respectively.
    Fig. 5
  7. In the opened document you click the link "NRAQ.E116536" to open the certificate with the article number.

    Fig. 6
  8. Then a document containing the programmable modules opens. Search in the document for the required article number. You can have the document sought automatically by pressing the key combination "CTRL + F" and entering the first seven characters of the article number ("6ES7 521", for example) in the search field at the top left of the internet page. The number of hits is then displayed. Click "Next" to navigate to the separate points of the document.

    Fig. 7
  9. If necessary, you can also have the document printed. To do this you scroll to the end of the document and click the "Print this page" button. You then have a hard copy of the certificate.

These instructions showed how to find the UL certificate of a certain module in the general product approval "UL for USA". The procedures are the same for the UL certificate for Canada and the UL Explosion Protection certificates. The UL certificate for Canada is available in Entry ID:18966550.

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The screens in this FAQ response were created with the Internet Explorer 10.

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