4QD controllers
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4QD controllers
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Because of 4QD's designs, most of our controllers can be made in 48v versions. This generally involves upgrading several components to higher voltage devices and the use or higher voltage MOSFETs and capacitors, as well as increasing the overvoltage clamping.
Modifying individual controllers is not commercially viable, and the demand for 48v versions is generally low, so only certain models are generally available as -48 versions.
However the maximum safe working voltage of the capacitors in 48v models is 62v and this should not be exceeded for any significant time or the capacitors will overheat and explode. One of the reasons why we don't make higher voltage controllers is that the next voltage capacitors (100v) are of significantly lower capacitance in the same can size, so most controllers would need a lot more capacitors. That generally means a complete redesign.
However we do make the Uni-8-48 in batches for one customer and it is available occasionally when there is batch over-make. See ordering on Uni Controllers page.
It could be again manufactured in 48v, subject to a minimum quantity. If your use is lilkely to extend to a quantity, please enquire.