Epson 5000 - Manual (Page 10)

The green and yellow wire must be connected to the terminal
in the plug which is marked with the letter E or with the earth
symbol or coloured green or green and yellow.
The blue wire must be connected to the terminal in the plug
marked with the letter N or coloured black.
The brown wire must be connected to the terminal in the plug
marked with the letter L or coloured red.
If damage occurs to the plug, replace the cord set or consult a
qualified electrician.
Replace fuses only with a fuse of the correct size and rating.
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