CHAPTER 4: ELECTRICAL INSTALLATION 339 WIRING
3 SERIES RETROFIT – INSTRUCTION MANUAL 55
Figure 4-2: Terminal identification with switching device as CONTACTOR - non-
drawout
Table 4–4: 339 Terminal blocks with switching device as CONTACTOR - non-drawout
Power Supply + B1 INPUT 1 C1 IRIG-B + D5 PHASE A CT E5 PHASE A CT
Power Supply - B2 INPUT 2 C2 IRIG-B - D6 PHASE B CT E6 PHASE B CT
Chassis GND B3 INPUT 3 C3 RS485 + D7 PHASE C CT E7 PHASE C CT
A1 B4 INPUT 4 C4 RS485 - D8 GND CT E8 GND CT
A2 B5 INPUT 5 C5 RS485 COM D9 PHASE A VT E9 PHASE A VT
A3 B6 INPUT 6 C6 CHASSIS GND D10 PHASE B VT E10 PHASE B VT
A4 B7 INPUT 7 C7 RMIO+ D11 PHASE C VT E11 PHASE C VT
A5 B8 INPUT 8 C8 RMIO- D12 CBCT E12 CBCT
A6 B9 INPUT 9
A7 Start Inhibit N/C B10 INPUT 10
A8 Start Inhibit COM B11 INPUT COM
A9 Start Inhibit N/O B12 CHASSIS GND
A10 Trip N/C
A11 Trip COM
A12 Trip N/O
A13 AUX 5 N/C
A14 AUX 5 COM
A15 AUX 5 N/O
A16 AUX 6 N/C
A17 AUX 6 COM
A18 AUX 6 N/O
A19 CRIT FAIL N/C
A20 CRIT FAIL COM
A21 CRIT FAIL N/O
INPUT 1
INPUT 2
INPUT 3
INPUT 4
INPUT 5
INPUT 6
INPUT 7
INPUT 8
INPUT 9
INPUT 10
INPUT COM
CHASSIS GND
1
2
3
4
5
6
7
8
9
10
11
12
PHASE A CT
PHASE B CT
PHASE C CT
GND CT
PHASE A VT
PHASE B VT
PHASE C VT
CBCT
PHASE A CT
PHASE B CT
PHASE C CT
GND CT
PHASE A VT
PHASE B VT
PHASE C VT
CBCT
■
■
■
■
■
■
■
5
6
7
8
9
10
11
12
POWER SUPPLY -
POWER SUPPLY +
CHASSIS GND
START INHIBIT N/C
START INHIBIT N/O
TRIP COM
AUX 5 N/C
AUX 5 N/O
AUX 6 COM
CRIT FAIL N/C
CRIT FAIL N/O
START INHIBIT COM
TRIP N/C
TRIP N/O
AUX 5 COM
AUX 6 N/C
AUX 6 N/O
CRIT FAIL COM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
IRIG-B +
IRIG-B -
RS485 +
RS485 -
RS485 COM
CHASSIS GND
RMIO+
RMIO-
1
2
3
4
5
6
7
8
5
6
7
8
9
10
11
12
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