Littelfuse BF2 32V Series User Manual
Bf2 fuse rated 32v, Bolt-down fuses, Description

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Products Catalog
BF2 FUSE RATED 32V
Description
This BF2 fuse is rated at 32V and offers a bolt-on fuse for
high current wiring protection. Current rating 100A - 500A;
with transparent housing for easy detection of blown fuses.
Specifications
Housing:
Out of thermoplastic (UL 94-V0, heat-resistant)
100A - 300A: Visible melting element
Terminal:
Copper alloy, gal. Sn
2 x M8 bolts, Distance 51 mm
Mounting Torque:
12.0 Nm +/- 1Nm
Breaking Capacity:
100 A - 300 A: 2.000 A, 32V, DC
400 A - 500 A: 1.500 A, 32V, DC
Complies with:
ISO 8820-5
UL 248 Special Purpose Fuses
Ordering Information
Part Number
Package Size
153.5395.xxxx
200
Last figure of article no. = packaging code
Corresponding holder see Section “Fuse Holders.”
* Parts with asterisk are short circuit protectors only.
Ratings
Part Number
Current Rating
Housing Color
Typ. Voltage Drop
Cold Resistance
I
2
t
153.5395.610_
100 A
110 mV
0.70 mΩ
46,800 A²s
153.5395.612_
125 A
110 mV
0.52 mΩ
118,100 A²s
153.5395.615_
150 A
110 mV
0.42 mΩ
113,400 A²s
153.5395.617_
175 A
110 mV
0.36 mΩ
154,400 A²s
153.5395.620_
200 A
110 mV
0.34 mΩ
288,000 A²s
153.5395.622_
225 A
110 mV
0.29 mΩ
236,000 A²s
153.5395.625_
250 A
110 mV
0.25 mΩ
292,500 A2s
153.5395.630_*
300 A
110 mV
0.21 mΩ
486,000 A²s
153.5395.640_*
400 A
110 mV
0.13 mΩ
964,000 A²s
153.5395.650_*
500 A
110 mV
0.12 mΩ
1,449,000 A²s
Bolt-down Fuses
Time Current Characteristics
% of Rating
Opening Time Min / Max (s)
100A - 250A
300A - 500A
75
– / –
4 h / –
100
4 h / –
– / –
135
120 s / 1,800 s
– / –
200
1 s / 15 s
1 s / 15 s
350
0.300 s / 5 s
0.500 s / 5 s
600
0.100 s / 1 s
0.100 s / 1 s