Ohm's Law
Color Codes
Nicknames
Transformers
100

This letter is used to represent voltage

E

100

Phase A in a single-phase, 120/240vac system must be this color

Black

100

Smurf Tube

ENT

100

This 2007 Michael Bay film stars this famous actor as lead man Sam Witwicky

Shia LaBeouf

200

This letter is used to represent resistance

R

200

In a 120VAC system the grounded conductor typically has this color

White

200

Thin Wall

EMT

200

The leader of the Autobots

Optimus Prime

300

This letter is used to represent current

I

300

The grounding conductor in MC cable comes in this color of insulation

Green

300

Sawzall

Reciprocating Saw

300

The leader of the Decepticons

Megatron

400

The unit we use to measure true power

Watts

400

While there is no rule or law, typically a 2-wire ungrounded DC Power System will use 2 different colors; 1 color for positive and 1 color for negative

Red (+) and Black (-)

400

Channel-Locks

Pump pliers

400

The fictional planet of origin for the Transformers

Cybertron

500

The unit we use to measure reactive power

VARs

500

The high-leg of a 4-wire, delta-connected 120/240v system must be this color

Orange

500

Red Head

Anti-short bushing

500

This famous publisher is responsible for the publishing the Transformers comics in the 1980s

Marvel Comics