Página 10 - elastimold

Versión de HTML Básico

www.tnb.com
United States
Tel: 901.252.8000
800.816.7809
Fax: 901.252.1354
Technical Services
Tel: 888.862.3289
H-70
Elastimold
®
Molded Current-Limiting Fuses (MCLF)
Power & High Voltage —
Elastimold
®
& Hi-Tech
®
Fuse Products
Notes:
1. Designs have a 50,000A all U/CERMSs Symmetrical Rating.
2. 10–50A fuses have a Rated Maximum Application Temperature of 65° C, and 65–180A fuses have a Rated Maximum Application
Temperature of 40° C. (RMAT is the maximum temperature of the air in contact with the MCLF housing at which the fuses have been shown suitable for use.)
3. Tabulated Maximum Total I
2
t values are for currents of 50,000A at the nominal voltage of the fuse. Fuses that have a Rated Maximum Voltage higher than their Nominal Voltage Rating
will have a higher I
2
t let-through when applied at voltages up to these higher values. For example, Maximum Total I
2
t values are increased by approximately 30% when 8.3kV fuses are
applied at 10kV and approximately 25% when 15.5kV fuses are used at 17.2kV.
4. Maximum total l
2
t values are reduced for currents below 50,000A. For example, at 10,000A, l
2
t values are approximately 15% less than the published values.
5. 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.
6. Maximum continuous currents at higher ambient temperatures may be determined by derating the fuses by .2% per degree C over 25° C.
For example: At 40° C, the derating would be 15 x .2 = 3%, making the maximum continuous current of a 20A fuse 23.0 x .97 = 22A.
Electrical Characteristics of Encapsulated Fuses Used in MCLF (1)
Nominal
Fuse
Voltage
Rating
(kV)
Current
Rating
(Amps)
Fuse
Cat. NO.
Rated
Maximum
Voltage
(kV)
Maximum Continuous
Current
(2) (6)
Peak Arc
Voltage
(kV) (5)
Minimum
Melt I
2
t
(AMP
2
-SEC)
Maximum
Total I
2
t
(AMP
2
-SEC)
(3) (4)
25° C
40° C
5.5
80
M05CLF080
5.5
86
84
15
22,100
110,000
100
M05CLF100
108
105
15
56,700
280,000
125
M05CLF125
137
133
15
109,200
530,000
150
M05CLF150
159
154
15
176,000
860,000
180
M05CLF180
185
180
15
259,000
1,270,000
8.3
10
M15CLF010
10.0
14
13
28
800
4,000
20
M15CLF020
23
22
26
1,620
11,000
30
M15CLF030
35
33
26
5,250
30,000
40
M15CLF040
43
41
26
8,700
50,000
50
M15CLF050
51
47
26
12,800
70,000
65
M15CLF065
8.3
73
71
25
25,200
100,000
80
M15CLF080
87
84
25
47,000
185,000
100
M15CLF100
106
103
25
78,300
330,000
115
M15CLF115
120
116
25
115,150
480,000
15.5
10
M25CLF010
17.2
14
13
46
800
3,700
20
M25CLF020
23
22
45
1,620
10,000
30
M25CLF030
35
33
45
5,250
30,000
40
M25CLF040
43
41
45
8,700
50,000
50
M25CLF050
47
45
45
12,800
70,000
65
M25CLF065
15.5
68
66
40
25,200
110,000
80
M25CLF080
88
84
40
54,400
255,000
100
M25CLF100
100
100
40
80,000
380,000
23.0
10
M35CLF010
23.0
14
13
61
800
4,800
20
M35CLF020
23
22
60
1,620
13,000
30
M35CLF030
35
33
60
5,250
38,000
40
M35CLF040
41
40
60
8,700
61,000
50
M35CLF050
47
46
60
12,800
82,000