14
CT Port Definition
No.
Label
Definition
Description
1
CT1+
Primary CT1+
U wire on the power grid side
2
CT1–
Primary CT1–
3
CT2+
Primary CT2+
W wire on the power grid side
4
CT2–
Primary CT2–
5
CT3+
Reserved
6
CT3–
7
CT4+
8
CT4–
(Optional) Installing a CT Cable
3.8
Branch
Master power
distribution panel