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4.4 CT Table for PBVI Board
Table 2 shows the configuration of large branch circuit breakers and their CT assignments.
Table 2 Wiring configuration of large branch circuit breakers
Configuration 1: Four Modules
Connector P3 (A) Pins
▼
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Wire Color WBWBWBWBWBWBWBWBWB
CT CT1 CT2 CT3 CT4 CT5 CT6 CT7 CT8
CT9
or IG
Connector P4 (B) Pins
▼
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Wire Color WBWBWBWBWBWBWBWBWB
CT CT10 CT11 CT12 CT13 CT14 CT15 CT16 CT17
CT18
or IG
Configuration 2: Two Modules With Large Branch Breaker CTs
Connector P3 (A) Pins
▼
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Wire Color WBWBWBWBWBWBWBWBWB
CT LB1 LB2 LB3 LB4 LB5 LB6 LB7 LB8
LB9
or IG
Connector P4 (B) Pins
▼
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Wire Color WBWBWBWBWBWBWBWBWB
CT LB10 LB11 LB12 LB13 LB14 LB15 LB16 LB17
LB18
or IG
Configuration 3: Four Modules With Two 5-Wire Subfeed Breaker CTs
Connector P3 (A) Pins
▼
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Wire Color W B W B W B W B W B
CT LB1 LB2 LB3 LB4 LB5 IG
Phase A1 B1 C1 N1 G1
Connector P4 (B) Pins
▼
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Wire Color W B W B W B W B W B
CT LB6 LB7 LB8 LB9 LB10 IG
Phase A2 B2 C2 N2 G2
Configuration 4: Four Modules With Three 5-Wire Subfeed Breaker CTs
Connector P3 (A) Pins
▼
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Wire Color WBWBWBWBWBWBWBWBWB
CT LB1 LB2 LB3 LB4 LB5 LB11 LB12 IG
Phase A1 B1 C1 N1 G1 N3 G3
Connector P4 (B) Pins
▼
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Wire Color W B W B W B W B W B W B W B
CT LB6 LB7 LB8 LB9 LB10 LB11 LB12 LB13 IG
Phase A2 B2 C2 N2 G2 A3 B3 C3
W = White
B = Black
IG = Isolated Ground CT
LB = Large Branch Breaker CT
A = A Phase CT
B = B Phase CT
C = C Phase CT
N = Neutral CT
G = Ground CT