Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Recent content by Carlos_

  1. Carlos_

    UL489 Vs Ul489B

    AWESOME! I did not know UL allowed you to check that stds for FREE! I have been saying this for YEARS! STDs should be FREE!
  2. Carlos_

    UL489 Vs Ul489B

    Hi People, I am designing a solar plant and the PV modules will be behind DC optimizers. I am trying to choose a CB however, I am not sure if I can use UL489 instead of UL489B rated CB. I believe that UL489 will be suitable as the surrent from the PV array will be regulated by the optimizer...

Part and Inventory Search