For cable entries

For air circulation

To release the heat

To extend the busbar

Brass

Galvanised iron

Aluminium

Bronze

Red, yellow, black, green

Red, blue, black, yellow

Red, black, green, blue

Red, yellow, blue, black

Red and blue

Red and black

Red and green

Red and yellow

L1, L2, L3 & N

U, V, W & N

R, Y, B & N

A1,B1, C1 & N