I installed a 30 amp, double pole GFCI today. Wired it to a 4 wire dryer outlet and checked out the voltage.
Oddly, my multimeter (radioshack versio) reads 440v across both load wires. 220v across one and the neutral. My regular household outlets read 220v. They are 120v. For some reason everything is doubled.
What's the dealio? Battery? Can anyone recommend a good multimeter?
I set mine to ACV, 500V range. Anyway, despite the odd numbers, it seems to be wired up properly.
Oddly, my multimeter (radioshack versio) reads 440v across both load wires. 220v across one and the neutral. My regular household outlets read 220v. They are 120v. For some reason everything is doubled.
What's the dealio? Battery? Can anyone recommend a good multimeter?
I set mine to ACV, 500V range. Anyway, despite the odd numbers, it seems to be wired up properly.