High Current Fuses
ZCASE Single MEGA/Starter Fuse
The Single ZCASE is a Minimal Footprint Bolt Down Fuse with a wide rating range up to
600A in the same packaging size. The Time Current characteristic is similar to the well known
MEGA Design and can used as full wire protection until 250A. Higher ratings mostly used for
typically Starter Fuse application as a protector fuse. The fuse design is optimized for a one
bolt connection M6 (40A - 250A) or M8 (300A - 600A) and can used directly on a battery post
or busbar connection. Littelfuse is offering a complete solution for the necessary stud and
different busbar connections including some battery clamps.
Specifications
Operating temperature:
Housing Material:
Insulating Tube:
Terminal:
Voltage Rating:
Interrupting Rating:
Mounting Torque M6:
Mounting Torque M8:
-40 to 125°C
PPA-GF33HS
Out of ceramic
Tin plated Copper
32V DC
2000A @ 32V VDC
9.8Nm±1.4Nm
14Nm±2Nm
ZCASE Single Mega/Starter
Fuse
Ordering Information
Part Number
3298XXX.ZXSTA
3298XXX.Z
3298XXX.H
Package Size
480
480
100
Time-Current Characteristics
% of Rating
50
100
135
200
350
500
600
Opening Time Min / Max (s)
40A - 250A
–/–
14,400 / –
120 / 1800
1 / 15
0.300 / 5
–/–
0.100 / 1
300A - 500A
14,400 / –
–/–
–/–
1 / 40
0.300 / 5
–/–
0.100 / 1
600A
14,400 / –
–/–
–/–
1 / 40
0.300 / 5
0.100 / 1
–/–
Ratings
Part number
3298040._
3298060._
3298080._
3298100._
3298125._
3298150._
3298175._
3298200._
3298225._
3298250._
3298300.ZXSTA
3298350.ZXSTA
3298400.ZXSTA
3298500.ZXSTA
3298600.ZXSTA
3298900._
Current Rating Wire size
(A)
(mm
2
)
40
60
80
100
125
150
175
200
225
250
300
350
400
500
600
SHUNT
4
6
10
16
16
25
25
35
35
50
35
35
50
50
50
50
Max. Voltage Drop
(mV)
110
110
110
110
110
110
110
110
110
110
70
70
70
70
70
-
Average Cold Resistance
(mΩ)
1.53
0.98
0.715
0.57
0.39
0.32
0.26
0.231
0.175
0.167
0.128
0.103
0.084
0.065
0.049
-
I²t
(A
2
s)
5000
18000
15500
31000
45000
75000
140000
235000
95000
160000
310000
570000
870000
1550000
3000000
-
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.
19
littelfuse.com
High Current Fuses
ZCASE Single Mega/Starter Fuse
Dimensions
Dimensions in mm
Part No.
Description
Assembly Components (sold separately)
882-853
3-Way Bus Bar with
M8 Insulating Bolts Assembly*
2-Way Bus Bar with
M8 Insulating Bolts Assembly*
*M8 Nuts not inlcuded
Battery Terminal Mount
M8 Insulating Bolt
882-854
876-199
32980001ZXM8
Please contact your Littelfuse representative for
application support and information on mating hardware.
Time-Current Characteristic Curves
Reference Time-Current Characteristic Curves (Recorded@23˚)
Reference Time-Current Characteristic Curves (Recorded@23˚)
All ZCASE Starters T/C curves were
performed on the left or right side of
the metal bar as shown in pictures
above. A 50mm² Cu wire was mounted
at the mid hole (M8) of the metal bar
as current feed.
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.
20
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