F
14
PG-PC-0506
Thomas & Betts Corporation 8155 T&B Boulevard Memphis TN 38125 800.888.0211 www.tnb.com
ELECTRICAL ChARACTERISTICS OF ENCAPSULATED FUSES USED IN MCLF
Fuse
Current
Fuse
Voltage
Rating
Catalog
Rating
Number
(kV)
(A)
Molded Current-Limiting Fuse
Rated
Maximum Continuous Current
Voltage
(kV)
25
o
C 40
o
C (3)
86
108
5.5
137
159
185
14
23
10.0
35
43
50
73
87
106
120
14
23
17.2
35
43
47
68
15.5
88
100
14
23
23.0
35
41
47
Maximum
Peak Arc
Voltage
(kV)
Minimum
Melt l
(AMP
Maximum
Total l
(2)
(AMP
t
t
2
-SEC)
-SEC)
80
100
125
150
180
10
20
30
40
50
65
80
100
115
10
20
30
40
50
65
80
100
10
20
30
40
50
M05CLF080
M05CLF100
M05CLF125
M05CLF150
M05CLF180
M15CLF010
M15CLF020
M15CLF030
M15CLF040
M15CLF050
M15CLF065
M15CLF080
M15CLF100
M15CLF115
M25CLF010
M25CLF020
M25CLF030
M25CLF040
M25CLF050
M25CLF065
M25CLF080
M25CLF100
M35CLF010
M35CLF020
M35CLF030
M35CLF040
M35CLF050
105
133
154
180
103
116
100
84
15
15
15
15
15
28
26
26
26
26
25
25
25
25
46
45
45
45
45
40
40
40
61
60
60
60
60
22,100
56,700
109,200
176,000
259,000
800
1,620
5,250
8,700
12,800
25,200
47,000
78,300
115,150
800
1,620
5,250
8,700
12,800
25,200
54,400
80,000
800
1,620
5,250
8,700
12,800
110,000
280,000
530,000
860,000
1,270,000
4,000
11,000
30,000
50,000
70,000
100,000
185,000
330,000
480,000
3,700
10,000
30,000
50,000
70,000
110,000
255,000
380,000
4,800
13,000
38,000
61,000
82,000
5.5
8.3
15.5
23.0
13
22
33
41
47
71
84
13
22
33
41
45
66
85
13
22
33
40
46
NOTES:
1. Designs have a 50,000 Amps rms. Symmetrical Rating.
2. Maximum total l
than the published values.
3. Peak arc voltages quoted are for 50,000A currents at the rated maximum voltage listed. Reduced currents and voltages will
reduce the peak arc voltage. Consult the factory for further information.
t values are reduced for currents below 50,000A. For example, at 10,000A, l
2
t values are approximately 15% less
8.3