The thing we must remember is, if the pump were to short circuit them the wire must carry how much current before the fuse or breaker kicks out. With a 1 amp fuse then 16- 22 gage should be fine. But without a fuse you could start a good fire long before a 20 amp breaker would trip if it ever did trip.
I bought a relay to turn off my pump, but decided not to install it.
PRO 1 Its cool
CON 1 It may fail
PRO 2 longer pump life
CON 2 If anything should short the AC to +12 or +5
every part in the computer is toast!
PRO 3 Same energy
CON 3 If it were off 8 hours a day .25Amps X 120 volts
= 30 watts X 8 hours X 368 days = 85,440watt
` hours per year = 85.44 kilo watt hours per year X .07
` dollars per KWH = 5.98 dollars per year
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