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IMSA Color Codes
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IMSA Color Code Chart (Method 1)
METHOD 1 - This color code system employs six (6) different base colors alternating through a series of 21 conductors.
In this series, the last 15 conductors are marked with tracers of contrasting colors. The color sequence is repeated in regular sequence as necessary for cable configurations employing more than twenty-one (21) conductors.
CONDUCTOR NO. BASE COLOR TRACER COLOR 1 Black n/a 2 White n/a 3 Red n/a 4 Green n/a 5 Orange n/a 6 Blue n/a 7 White Black 8 Red Black 9 Green Black 10 Orange Black 11 Blue Black 12 Black White 13 Red White 14 Green White 15 Blue White 16 Black Red 17 White Red 18 Orange Red 19 Blue Red 20 Red Green 21 Orange Green 
