High Current Fuses
MEGA® and MEGA® Clear Top Fuse Rated 32V
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:
Voltage Rating:
2000A @ 32 VDC
32 VDC
Operating Temperature Range: -40˚C to + 125˚C
Housing Material:
Clear Top Housing Material:
Terminals:
PPA-GF33HS
PES (top) PPA-GF33HS (bottom)
Copper (Silver plated copper available)
M6 or M8 bolts available
8-14 Nm M6
12-18 Nm M8
ISO 8820-5
MEGA® Fuses
Mounting Torque:
Complies with:
Ordering Information
Time-Current Characteristics
Package
Size
Bolt Bolt Hole
Opening Time Min / Max (s)
% of
Rating
Part Number Rating
Plating
Size
M8
M8
M8
M8
M6
Qty
40-250
– / –
300-500
14,400 s / –
– / –
0298xxx.ZXEH 80 - 250
0298xxx.ZXH 300 - 500
0298xxx.UX1M8 80 - 500
0298xxx.ZXB 40 - 250
0298xxx.ZXA 80 - 500
500
500
500
500
500
None
None
None
Ag
2
75
2
100
135
200
350
600
14,400 s / –
120 s / 1800 s
1 s / 15 s
1
– / –
2
MEGA® Clear Top Housing Fuse
1 s / 15 s
0.500 s / 5 s
0.100 s / 1 s
None
2
0.300 s / 5 s
0.100 s / 1 s
MEGA Clear Top Housing Material Fuse
0298xxx.UXT 40 - 250
500
None
M8
2
Ratings
Part Number Current Rating
(A)
Font Color*
Typ. Voltage Drop
(mV)
Cold Resistance
I2t
(A2s)
(mΩ)
0298040._1
0298060._1
0298080._
0298100._
0298125._
0298150._
0298175._
0298200._
0298225._
0298250._
0298300._2
0298350._2
0298400._2
0298450._2
0298500._2
40
–
–
132
119
87
2.510
1.504
0.720
0.562
0.423
0.352
0.294
0.257
0.222
0.201
0.167
0.138
0.126
0.112
0.092
8700
21000
60
80
21500
100
125
150
175
200
225
250
300
350
400
450
500
87
31100
80
57800
92
100000
168000
204000
257000
389000
315000
500000
610000
1050000
2050000
86
83
82
82
74 **
68 **
64 **
60 **
58 **
Note 1: Not mentioned in ISO standards Note 2: Short Circuit Protector only
* 0298xxx.ZXB has white font color on all ratings.
** Voltage Drop measurements for short circuit protectors taken at 75% of rated current.
Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for
surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse
product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages
arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless
otherwise agreed by Littelfuse.
littelfuse.com