PDA

View Full Version : BX color code


jmsound
Sep 20, 2009, 10:46 PM
I have an electric water heater that uses 220ac volts. The BX cable from the panel to the heater has a red and black wire inside. I am adding a timer but the wire I have for that has the white, black and copper ground wire. I would like to know what color (red, black on the BX) should connect to the black and white wire for the timer
Thanks

hkstroud
Sep 21, 2009, 05:24 AM
What voltage is the timer? Both the black and the red of the heater wiring are hot legs. There is no neutral in 240V wiring. Sounds like timer is 120V.