POWR-GARD® Fuse
SPXI SERIES IN-LINE SOLAR FUSE
SPXI-B and SPXI-BM Electrical Specifications
(Bigger Crimp Barrel)
INTERRUPTING
AGENCY
NOM COLD
WATTS LOSS
WATTS LOSS AT
80 % RATED
CURRENT (W)
MELTING
I2t (A2 s)
(1500 V DC)
TOTAL CLEARING
I2t (A2 s) 15 kA
(1500 V DC)
VOLTAGE
ORDERING
NUMBER
RATING
APPROVALS
RESISTANCE AT 100 % RATED
(ohm)
CURRENT (W)
DC
DC
UL
TUV
SPXI001.TXB
SPXI001.LXB
1500
30 kA
0 .625
0 .191
1.07
1.32
0.90
0.86
.92
0.56
0.70
0.50
0.48
.51
0.29
1.55
5
0.53
5.13
13
•
•
SPXI002.TXB
SPXI002.LXB
1500
1500
1500
1500
1500
1500
1500
1500
1500
1500
1500
1500
1500
1500
1500
1500
1500
1500
1500
1500
1500
1500
1500
1500
30 kA
30 kA
30 kA
30 kA
30 kA
30 kA
30 kA
30kA
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
SPXI2.25TXB
SPXI2.25LXB
0 .125
SPXI02.5TXB
SPXI02.5LXB
0.099
7
16
SPXI003.TXB
SPXI003.LXB
.0721
14
40
SPXI03.5TXB
SPXI03.5LXB
0.0711
0.0438
0.0899
0.0644
0.0576
0.0349
0.0223
0.0163
0.0131
0.013
1.56
0.95
2.84
3.04
3.05
3.26
3.25
3.34
5.27
5.32
5.38
5.9
0.81
0.56
1.54
1.59
1.71
1.84
1.82
1.89
3.05
3.08
3.14
3.3
25
50
SPXI004.TXB
SPXI004.LXB
57
95
SPXI04.5TXB
SPXI04.5LXB
34
55
SPXI005.TXB
SPXI005.LXB
48
71
SPXI006.TXB
SPXI006.LXB
30 kA
30 kA
30 kA
30 kA
30 kA
30 kA
30 kA
50 kA
50 kA
50 kA
50 kA
50 kA
50 kA
50 kA
50 kA
50 kA
49
75
SPXI008.TXB
SPXI008.LXB
121
407
798
299
404
701
2304
3792
4350
257
362
588
657
853
1030
214
SPXI010.TXB
SPXI010.LXB
509
SPXI012.TXB
SPXI012.LXB
951
SPXI015.TXB
SPXI015.LXB
637
SPXI016.TXB
SPXI016.LXB
666
SPXI020.TXB
SPXI020.LXB
0.0085
0.00665
0.00526
0.00459
0.00735
0.00548
0.00458
0.00412
0.00365
0.00326
1464
3256*
5543*
6655*
1794*
5726*
5521*
7058*
8783*
11682*
SPXI025.TXBM
SPXI025.LXBM
SPXI030.TXBM
SPXI030.LXBM
6.7
3.8
SPXI032.TXBM
SPXI032.LXBM
7.0
3.9
SPXI035.TXB
SPXI040.TXB
SPXI045.TXB
SPXI050.TXB
SPXI055.TXB
SPXI060.TXB
12.58
13.50
15.02
16.75
17.82
21.02
7.04
7.56
8.41
9.38
9.98
11.77
*Total Clearing I2t (A2s) 50 kA
Littelfuse.com/SPXI
© 2023 Littelfuse, Inc.
Rev: 060523
6 of 12