Montana Owners Club - Keystone Montana 5th Wheel Forum - View Single Post

Phil P · 01-02-2015, 10:18 AM

Hi Ozz

This is the way I find the easiest to see how the 220 /240 v service works.

This is the standard 220 / 240V service provided by the utility companies in the US.

The wires marked 120V are L1 and L2. The natural is the center tap.

The + and – marks are there to help with the theory when it is taught in a class room. AC doesn’t have any fixed + and - they alternate from one side to the other.

You will note the 240V making doesn’t have a line to the center (neutral) tap.

Phil P

01-02-2015, 10:18 AM	#22
Phil P Montana Master Join Date: Mar 2011 Location: Okeechobee Posts: 2,150 M.O.C. #11206	Hi Ozz This is the way I find the easiest to see how the 220 /240 v service works. This is the standard 220 / 240V service provided by the utility companies in the US. The wires marked 120V are L1 and L2. The natural is the center tap. The + and – marks are there to help with the theory when it is taught in a class room. AC doesn’t have any fixed + and - they alternate from one side to the other. You will note the 240V making doesn’t have a line to the center (neutral) tap. Phil P __________________ 2009 Montana 3665RE 2009 Duramax 3500 DRW quad cab personal web page https://www.sallyscoffees.com If you get a page not available then remove the "s" after HTTP