Current-Limiting SSR

Nov 20, 2003 1 Replies
D

I'm looking for a current-limiting SSR for switching single-phase AC. Another engineer told me that he used one a couple years back but cannot remember the manufacturer. Apparently the series has parts ranging from 5A to 25A continuous and performs active current-limiting for inrush (and post-inrush). It won't draw more than the rated current and will chop the waveform as needed to perform the active limiting.



Has anyone heard of such a unit?



Thanks,



Dan


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B

Actually, by definition a SSR would not be capable of current limiting since it would just be an On-Off device. However, the type of device you are referring to is called a Phase Angle Power Controller, differing from a SSR in that it can continuously limit the current output by phasing back the SCR firing angle. Try Phasetronics in Florida.

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Not much on the website besides contact information but they have always been helpfull.

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