Cut Sheet

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
High Current Fuses
Specifications
Interrupting Rating: 2000A @ 32 VDC
Voltage Rating: 32 VDC
Operating Temperature Range: -40˚C to + 125˚C
Housing Material: PPA-GF33HS
Clear Top Housing Material: PES (top) PPA-GF33HS (bottom)
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 Rating
Package
Size
Plating
Bolt
Size
Bolt Hole
Qty
0298xxx.ZXEH 80 - 250 500 None M8 2
0298xxx.ZXH 300 - 500 500 None M8 2
0298xxx.UX1M8 80 - 500 500 None M8 1
0298xxx.ZXB 40 - 250 500 Ag M8 2
0298xxx.ZXA 80 - 500 500 None M6 2
MEGA Clear Top Housing Material Fuse
0298xxx.UXT 40 - 250 500 None M8 2
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 0.100 s / 1 s
MEGA
®
Clear Top Housing Fuse
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.
MEGA
®
Fuses
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.
Ratings
Part Number Current Rating
(A)
Font Color* Typ. Voltage Drop
(mV)
Cold Resistance
(mΩ)
I
2
t
(A
2
s)
0298040._
1
40 – 132 2.510 8700
0298060._
1
60 – 119 1.504 21000
0298080._ 80 87 0.720 21500
0298100._ 100 87 0.562 31100
0298125._ 125 80 0.423 57800
0298150._ 150 92 0.352 100000
0298175._ 175 86 0.294 168000
0298200._ 200 83 0.257 204000
0298225._ 225 82 0.222 257000
0298250._ 250 82 0.201 389000
0298300._
2
300 74 ** 0.167 315000
0298350._
2
350 68 ** 0.138 500000
0298400._
2
400 64 ** 0.126 610000
0298450._
2
450 60 ** 0.112 1050000
0298500._
2
500 58 ** 0.092 2050000