Liebert 1500, 3000, 4000, 6000 A user manual To office

Figure 30 Wiring diagram and pin assignment of terminal blocks TB1 to TB4

v	NE-1451X cable
	(or equivalent)
	H/L FLOAT ALM (1)
	H/L FLOAT ALM (1)
	H/L FLOAT ALM (2)
	H/L FLOAT ALM (2)
	MIN RECT ALM
To office	MIN RECT ALM
alarm	MAJ RECT ALM
circuit
	MAJ RECT ALM
	LVD ALM
	LVD ALM
	LOSS OF AC VOLT ALM
	LOSS OF AC VOLT ALM

Input from DISCH fuse alarm circuits DFA Input from CHG fuse alarm circuits CFA

NE-1451X cable (or equivalent)

	AUX ALM NO.1 (1)
	AUX ALM NO.1 (1)
	AUX ALM NO.1 (2)
	AUX ALM NO.1 (2)
	AUX ALM NO.2 (1)
To office	AUX ALM NO.2 (1)
alarm	AUX ALM NO.2 (2)
circuit
	AUX ALM NO.2 (2)
	EQUALIZE ALM
	EQUALIZE ALM
	HVSD ALM
	HVSD ALM
	To LVD circuit	RLVD
Input alarm from LVD circuit		LVDA

C

NC NO C NC NO C NC NO C NC NO C NC NO C NC NO

C

NC NO C NC NO C NC NO C NC NO C NC NO C NC NO

TB3

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 20

TB4

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 20

TB1

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

TB2

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

NE-1451X cable (or equivalent)

CMINOR VIS (1)

NC		MINOR VIS (1)
NO			To small internal
C	BK	ALARM VISUAL (C)
			battery return
NC
NO			busbar

CMAJOR VIS (1)

NC		MAJOR VIS (1)
NO
C	G	ALARM VISUAL (NC)	To cabinet
NC
NO		MINOR AUD (1)	alarm lamp
C
NC		MINOR AUD (1)
NO		MINOR AUD (2)	To office
C			alarm
NC		MINOR AUD (2)
			circuit
NO

CMAJOR AUD (1)

NC MAJOR AUD (1)

NE-1451X cable (or equivalent)

NO

CMAJOR AUD (2)

NC	MAJOR AUD (2)
NO	FUSE ALM
C
NC	FUSE ALM
NO	CHG FUSE ALM
C		To office
NC	CHG FUSE ALM
		alarm
NO
		circuit
C	DISCH FUSE ALM
NC	DISCH FUSE ALM
NO

CH/L VOLT ALM (1)

NC	H/L VOLT ALM (1)
NO

CH/L VOLT ALM (2)

NC	H/L VOLT ALM (2)
NO	REMOTE EQUALIZE START Input from office remote circuit

Operation 33