Rod Hower wrote: > If I have other large loads on my 230 volt single phase turning on, > can this cause a GFI to trip?
Normally, no. The GFCI is only checking the sum of the hot and neutral lines. If they don't add up to zero, then there is a ground fault. However, they aren't perfect. Noise, high frequency harmonics, or DC leakage currents can confuse them. So, it can trip if something else on the AC line is generating a lot of noise or producing a lot of harmonic distortion. -- Lee A. Hart Ring the bells that still can ring 814 8th Ave. N. Forget your perfect offering Sartell, MN 56377 USA There is a crack in everything leeahart_at_earthlink.net That's how the light gets in - Leonard Cohen
