Which color code identifies a crimp terminal for 12-10 AWG used with 600 V insulation?

• A. Blue
• B. Yellow
• C. Red
• D. Green

Answer: (B)

Color coding on crimp terminals tells you the wire size the terminal is meant for, and this often corresponds with the voltage rating as well. For 12-10 AWG conductors, the insulation color used on these terminals is yellow. This size range requires a larger crimp and a bigger insulation footprint, which yellow terminals are designed to accommodate, and they are typically rated for up to 600 V. Using a different color would indicate a different wire size, while green isn’t the standard color for this gauge in common terminal sets. So yellow identifies the correct pairing of 12-10 AWG with a 600 V insulation rating.