Littelfuse MEGA 32V Series User Manual
Mega, Fuse rated 32v, Bolt-down fuses
www.littelfuse.com
© 2012 Littelfuse • Transportation
Products Catalog
MEGA
®
FUSE RATED 32V
Description
The MEGA
®
Fuse is designed for high current circuit protection up
to 500A with “Diffusion Pill Technology.” The MEGA
®
Fuse also
provides time delay characteristics. Designed and patented by
Littelfuse, the MEGA
®
Fuse is ideal for battery and alternator
protection application and other heavy gauge cables requiring
ultra-high current protection.
Specifications
Interrupting Rating:
2000A @ 32 VDC
Voltage Rating:
32 VDC
Operating Temperature Range:
-40˚C to + 125˚C
Housing:
PPA (33%/35% GF)
Terminals:
Copper (Silver plated copper available)
M6 or M8 bolts available
Mounting Torque:
8-14 Nm M6
12-18 Nm M8
Complies with:
ISO 8820-5
Ordering Information
Part Number
Package Size Plating Bolt Size
Rating
0298xxx.ZXH
500
none
M8
300 - 500
0298xxx.ZXEH
500
none
M8
80 - 250
0298xxx.ZXB
500
Ag
M8
40 - 250
0298xxx.ZXA
500
none
M6
80 - 500
Note 1: Not mentioned in ISO standards Note 2: Short Circuit Protector only
** Voltage Drop measurements for short circuit protectors taken at 75% of rated current.
Time-Current Characteristics
% of Rating
Opening Time Min / Max (s)
40-250
300-500
75
– / –
14,400 s / –
100
14,400 s / –
– / –
135
120 s / 1800 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
– / –
Ratings
Part Number
Current Rating
Font Color
Typ. Voltage Drop
Cold Resistance
I2t
0298040._
1
40 A
–
132 mV
2.510 mΩ
–
0298060._
1
60 A
–
119 mV
1.504 mΩ
–
0298080._
80 A
87 mV
0.720 mΩ
–
0298100._
100 A
87 mV
0.562 mΩ
31100 A²s
0298125._
125 A
80 mV
0.423 mΩ
57800 A²s
0298150._
150 A
92 mV
0.352 mΩ
100000 A²s
0298175._
175 A
86 mV
0.294 mΩ
168000 A²s
0298200._
200 A
83 mV
0.257 mΩ
204000 A²s
0298225._
225 A
82 mV
0.222 mΩ
257000 A²s
0298250._
250 A
82 mV
0.201 mΩ
389000 A²s
0298300._
2
300 A
74 mV**
0.167 mΩ
–
0298350._
2
350 A
68 mV**
0.138 mΩ
–
0298400._
2
400 A
64 mV**
0.126 mΩ
–
0298450._
2
450 A
60 mV**
0.112 mΩ
–
0298500._
2
500 A
58 mV**
0.092 mΩ
–
Bolt-down Fuses