Step 7(b): No empty breaker
and two Main CTs
Common in N. American homes
Secure the White (N)
and Blue (L3) wires
from the wire harness to the neutral bus bar.
Turn off two vertically adjacent (stacked)
15A single pole breakers and remove their
wires. Connect one of the breaker wires to
the Black (L1) harness wire and a splicing
wire with a wire nut. Next, connect the
second breaker wire to the Red (L2) harness
wire and a splicing wire with a wire nut.
Then secure each of the extra wires to the
two breaker poles.
A larger amp breaker may be
used if the gauge of the splicing
wire matches the existing gauge
wire from the breaker meeting the
national and regional codes