"DoN. Nichols" wrote in message
...
On 2014-01-25, Jim Wilkins wrote:

Why do you need two fuses for a single-phase motor?

In the UK, you don't, because 240 VAC comes with one side
grounded. However, in the USA, 240 VAC is normally supplied with a
grounded center tap, so if you have only one fuse -- or have two but
only one blows, you still have 120 VAC live in the motor's housing,
and
potentially available for contact and personal zapping. :-)


I assumed it was wired with a 20A double-pole breaker at the panel
protecting from shorts and a smaller fuse sized (how?) to blow before
the motor burned out.

jsw