Littelfuse BF1 32V Series User Manual
Bf1 fuse rated 32v, Bolt-down fuses, Description
www.littelfuse.com
© 2012 Littelfuse • Transportation
Products Catalog
53
BF1 FUSE RATED 32V
Description
This BF1 fuse is rated at 32V and offers a bolt-on fuse for
high current wiring protection. Current rating 23A - 200A;
with transparent housing for easy detection of blown fuses.
Specifications
Housing:
Out of thermoplastic (UL 94-V0, heat-resistant)
Visible melting element
Terminals:
Copper alloy, gal. Sn
2 x M5 or M6 bolts, distance 30 mm
Mounting Torque M5:
4.5 Nm +/- 1Nm
Mounting Torque M6:
6.0 Nm +/- 1Nm
Interrupting Rating:
23A & 30A:
1000A @32 VDC
40A - 150A:
2000A @32 VDC
200A:
1500A @32 VDC
Complies with: ISO 8820-5
UL 248 Special Purpose Fuses
Operating Temperature: -40 to 125 degrees C
Ordering Information
Mounting Torque
Part Number
Package Size
M5
153.5631.xxx2
1000
M5
153.5631.xxx1
10
M6
153.7010.xxx2
1000
M6
153.7000.xxx2
500
Ratings
Part Number
Current Rating
Housing Color
Typ. Voltage Drop
Cold Resistance
I
2
t
M5
M6
153.5631.523_
1,2
-
23 A
105 mV
3.50 mΩ
1,400 A²s
153.5631.530_
153.5631.530_
2
30 A
105 mV
2.70 mΩ
5,100 A²s
153.5631.540_
153.7010.540_
40 A
90 mV
1.56 mΩ
6,800 A²s
153.5631.550_
153.7010.550_
50 A
80 mV
1.03 mΩ
6,900 A²s
153.5631.560_
153.7010.560_
60 A
75 mV
0.75 mΩ
16,200 A²s
153.5631.570_
153.7010.570_
70 A
70 mV
0.64 mΩ
22,000 A²s
153.5631.580_
153.7010.580_
80 A
70 mV
0.55 mΩ
25,600 A²s
153.5631.610_
153.7010.610_
100 A
70 mV
0.44 mΩ
42,500 A²s
153.5631.612_
153.7010.612_
125 A
70 mV
0.34 mΩ
62,500 A²s
153.5631.615_
1
153.7010.615_
1
150 A
70 mV
0.29 mΩ
83,400 A²s
-
153.7000.615_
3
150 A
70 mV
0.33 mΩ
98,000 A²s
153.5631.620__
3
153.7000.620__
3
200 A
70 mV
0.24 mΩ
126,000 A²s
Corresponding holder see Section “Fuse Holders.”
Note 1: not mentioned in ISO standard Note 2: Not UL rated Note 3: Short Circuit Protector only
Bolt-down Fuses
Time-Current Characteristics
% of Rating
Opening Time Min / Max (s)
23-150A Fuses
150-200A Short Circuit
Protectors
75
– / –
360,000 s / –
100
360,000 s / –
– / –
110
14,400 s / –
– / –
150
90 s / 3,600 s
– / –
200
3 s / 100 s
1 s / 15 s
300
0.300 s / 3 s
– / –
350
– / –
0.300 s / 5 s
500
0.100 s / 1 s
– / –
600
– / –
0.100 s / 1 s