High Current Fuses
ZCASE SINGLE MEGA/STARTER
Specifications
Cover/Base Material:
Insulating Tube:
Terminal:
Voltage Rating:
Interrupting Rating:
Operating temperature:
Mounting Torque M6:
Mounting Torque M8:
PPA (33% GF)
Out of ceramic
Tin plated Copper
32V DC
2000A @ 32V VDC
-40 to 125°C
9.8Nm±1.4Nm
14Nm±2Nm
Ordering Information
Part Number
3298XXX.ZXSTA
3298XXX.Z
Package Size
480
480
Description
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 (125 A - 250 A) or M8 (300 A - 600 A) 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.
Time-Current Characteristics
% of Rating
50
100
135
200
350
500
600
–/–
14,400 / –
120 / 1800
1 / 15
0.300 / 5
–/–
0.100 / 1
Opening Time Min / Max (s)
125A - 250A
300A - 600A
14,400 / –
–/–
–/–
1 / 40
0.300 / 5
0.100 / 1 (only for 500A)
0.100 / 1 (except 600A)
Ratings
Part number
3298125.Z
3298150.Z
3298175.Z
3298200.Z
3298225.Z
3298250.Z
3298300.ZXSTA
3298350.ZXSTA
3298400.ZXSTA
3298500.ZXSTA
3298600.ZXSTA
3298900.Z
Current Rating
125 A
150 A
175 A
200 A
225 A
250 A
300 A
350 A
400 A
500 A
600 A
SHUNT
Wire size
16 mm²
25 mm²
25 mm²
35 mm²
35 mm²
50 mm²
35 mm²
35 mm²
50 mm²
50 mm²
50 mm²
50 mm²
Max. Voltage
Drop
110 mV
110 mV
110 mV
110 mV
110 mV
110 mV
70 mV
70 mV
70 mV
70 mV
70 mV
-
Average Cold
Resistance
0.39 mOhm
0.32 mOhm
0.26 mOhm
0.231 mOhm
0.175 mOhm
0.167 mOhm
0.128 mOhm
0.103 mOhm
0.084 mOhm
0.065 mOhm
0.049 mOhm
-
I²t
45000 A²s
75000 A²s
140000 A²s
235000 A²s
95000 A²s
160000 A²s
310000 A²s
570000 A²s
870000 A²s
1550000 A²s
3000000 A²s
-
www.littelfuse.com
High Current Fuses
ZCASE SINGLE MEGA/STARTER
Dimensions
Dimensions in mm
Examples of Single ZCASE Applications
Please contact your Littelfuse representative
for application support and information on
mating hardware.
Time-Current Characteristic Curves
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.
www.littelfuse.com
Embedded System
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