assemble
auto
automatic
automation
blue
board
box
brown
button
cabinet
cable
circuit
connect
control
current
distribution
electric
electrical
electricity
energy
extension
figure
fixed
gray
green
ground
industrial
industry
input
intelligent
joystick
line
marking
metal
number
panel
perforated
power
range
red
relay
safety
screen
system
technical
technology
terminal
tip
voltage
wire