
8 – 1
8
Circuit diagrams
8.1
Terminal assignment
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Remote reset Bell Alarm & tripped indicator F7
CUB +
CUB -
24 V DC
0 V DC
External Iron Core Ground Fault Sensor S2
External Air Core Neutral Sensor S1
External Air Core Neutral Sensor S2
External voltage transformer L1
External voltage transformer L2
voltage
External
transformer L3
External voltage transformer Com
COM15/16, otherwise empty
1
2
3
4
5
6
7
8
9
10
11
12
13
14
S 2
S 2
“Ready to close” signal S20
Closing Coil CC
S1
S1
1st Shunt Trip.
X8
X7
X6
X5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
S 4
S 4
S 3
S 3
2nd
:
auxiliary release F3 "UVR", F4 "UVR td"
F4 only “quick OPEN”
0053-07_n
u
Internal
External
Terminals
ANSI
C37.2
device
#
LT / (+)
Control power
N / (-)
EMERGENCY OPEN
or short terminals
Phase A
Phase B
Phase C
24 V DC Input
Terminating resistor
if no
external CubicleBUS module is connected
, 120
, 0.5 W
Ω
Short terminals, if no Neutral sensor
1
2
3
4
5
6
7
8
9
10
11
12
13
14
30
52CS
52CC
52CS
52TC
79
52TC / 86
52a
52b
52b
52b
52a
52a
52LC
52CC
52a
52b
52M
62
27
Signalling switch for 2nd shunt trip
Signaling switch for remote tripping
Bell Alarm S24
Open Fuse Indication S26
2nd shunt trip F2
X9
LT / (+)
Control power
N / (-)
LT / (+)
Control power
N / (-)
LT / (+)
Control power
N / (-)
LT / (+)
LT / (+)
Control power
Control power
Fuse carriage FS III
N / (-)
X9.3
X9.4
LT / (+)
Control power
N / (-)
OFLO
BA
TC
TC
CC
b
a
a
a
b
a
b
b
External Iron Core Ground Fault Sensor S1
Open Fuse Lockout Device (FS III Only)
Optional motor disconnect switch
Summary of Contents for UL 489
Page 36: ...5 21 Frame size II 3000 A Frame size III 1 Holes 14 mm 0720 1 0721_nu ...
Page 63: ...7 2 Horizontal connectors 0733_nu top view ...
Page 64: ...7 3 Rear vertical connectors 0734_nu top view rear view ...
Page 65: ...7 4 Front connectors 0736_nu front view top view ...
Page 66: ...7 5 Front connectors and pressure wire terminals 0737_nu top view front view ...
Page 67: ...7 6 7 2 Frame size II fixed mounted version 0494 3_nu ...
Page 68: ...7 7 Class C always 0494 5_nu top view rear view ...
Page 69: ...7 8 2500 0738_nu LH side view front view ...
Page 71: ...7 10 7 4 Frame size III fixed mounted version 0495 1_nu LH side view ...
Page 72: ...7 11 0495 2_nu top view top view ...
Page 73: ...7 12 0495 3_nu top view rear view ...
Page 75: ...7 14 7 5 Door cut outs fixed mounted circuit breaker Frame size I 0735_nu ...
Page 76: ...7 15 Frame size II III 0496_nu ...
Page 77: ...7 16 7 6 Frame size I draw out version 0745_nu ...
Page 78: ...7 17 0746_nu rear view top view ...
Page 79: ...7 18 0747_nu bottom view ...
Page 80: ...7 19 0748_nu ...
Page 81: ...7 20 0749_nu ...
Page 82: ...7 21 7 7 Frame size II draw out version 0490 1_ul ...
Page 86: ...7 25 7 8 Frame size III draw out version ...
Page 87: ...7 26 ...
Page 88: ...7 27 ...
Page 89: ...7 28 7 9 Door cut outs for draw out circuit breakers Frame size I 0750_nu ...
Page 91: ...7 30 7 11 External sensor for neutral conductor WLNCT2 ...
Page 92: ...7 31 WLNCT3 ...
Page 107: ...9 5 I tripping Ground fault tripping ...
Page 351: ......