[sdiy] Mains Voltage Selector Switches & Fusing

[Needham, Alan]

| 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

I can confirm 'pro' industrial equipment requires a fuse-change when
swapping voltage, as does my oscilloscope (bobby-basic lab standard).

	HTH, Alan


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