[sdiy] Mains Voltage Selector Switches & Fusing

[Tom Bugs]

Hi all,

Voltage Selector Switches - you know the things - they allow you to 
switch a machine from (typically) 115 to 230 V AC operation.
Having looked a bit into this, I presume they all do it the same sort of 
way -> two primaries are either wired in series (230V) or parallel (115V)

The question I have is what about the fuse?
Basing on the common Power-One HAA15-0.8: - these require a 375mA fuse 
for 230V operation or a 750mA fuse for 115V operation.
I've never heard of people having to swap fuses on 'pro' gear when 
switching mains voltage -- do you think they are just using the higher 
ampage fuse? That would seem dangerous for 230V operation then.. Or 
should people really be changing the fuse when switching that switch?

Puzzledly yours, with thanks in advance
Tom


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