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Are there any other features to look for in a phase converter?

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There are a medley of other physical packaging considerations including switch location, socket location, cable entry/exit location, weight, manual handling, split or integrated units, handles, and delivery. Switches and other controls should be towards the front of the unit, and should still be accessible if the unit is mounted sideways on due to workshop space limitations. Any sockets should also be towards the front of the unit, but cable entry / exit location can be more tricky - in general the rear or rear/side is preferred but some clients ask for the front. Although phase converters are quite compact they are fairly dense and so weigh a lot (in fact checking the weight of a unit is a fairly good way to check the quality of the key components) and this can create manual handling difficulties. This is one reason why some customers prefer the slave motor to be supplied separately although at Boost we are coming round to the view that this is best fitted internally in units of up to 4-kW / 5-hp and externally on a common frame for 8-kW / 10-hp and above. In any case the units of up to 6-kW really ought to be supplied with robust handles for general positioning purposes. The weight affects delivery and all the good manufacturers will ensure that their larger units arrive at customers using tail-lift lorries.

Finally almost all modern phase converters are blue! Working independently most have standardised on pretty much the same rather boring RAL 5017 shade. The other colours tend to be produced for large distributors who rebrand the products.