I'm under the impression that when a contactor is to be operated in AC-4 conditions more than ten times per minute, one should select a contactor that is one size larger than if it were not operated this frequently. I just wanted to clarify whether going the next size up was referring to the next highest current rating or the next highest frame size for an IEC contactor. Any insight is appreciated, thanks.
Red Flag Submitted
Thank you for helping keep Eng-Tips Forums free from inappropriate posts. The Eng-Tips staff will check this out and take appropriate action.
Reply To This Thread
Posting in the Eng-Tips forums is a member-only feature.
Cities are ceaseless engines of engineering activity. Itâ€™s likely that while you were on your way to work, you encountered a number of infrastructure development projects under construction. Download Now
When was the last time you drove down the highway without seeing a commercial truck hauling goods?The ubiquity of these machines underscores the important roll they play in modern commerce. Download Now