www.littelfuse.com

ZCASE SINGLE MEGA/STARTER

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.

Specifications

Cover/Base Material:

PPA (33% GF)

Insulating Tube:

Out of ceramic

Terminal:

Tin plated Copper

Voltage Rating:

32V DC

Interrupting Rating:

2000A @ 32V VDC

Operating temperature:

-40 to 125°C

Mounting Torque M6:

9.8Nm±1.4Nm

Mounting Torque M8:

14Nm±2Nm

Ordering Information

Part Number

Package Size

3298XXX.ZXSTA

480

3298XXX.Z

480

Ratings

Part number

Current Rating

Wire size

Max. Voltage

Drop

Average Cold

Resistance

I²t

3298125.Z

125 A

16 mm²

110 mV

0.39 mOhm

45000 A²s

3298150.Z

150 A

25 mm²

110 mV

0.32 mOhm

75000 A²s

3298175.Z

175 A

25 mm²

110 mV

0.26 mOhm

140000 A²s

3298200.Z

200 A

35 mm²

110 mV

0.231 mOhm

235000 A²s

3298225.Z

225 A

35 mm²

110 mV

0.175 mOhm

95000 A²s

3298250.Z

250 A

50 mm²

110 mV

0.167 mOhm

160000 A²s

3298300.ZXSTA

300 A

35 mm²

70 mV

0.128 mOhm

310000 A²s

3298350.ZXSTA

350 A

35 mm²

70 mV

0.103 mOhm

570000 A²s

3298400.ZXSTA

400 A

50 mm²

70 mV

0.084 mOhm

870000 A²s

3298500.ZXSTA

500 A

50 mm²

70 mV

0.065 mOhm

1550000 A²s

3298600.ZXSTA

600 A

50 mm²

70 mV

0.049 mOhm

3000000 A²s

3298900.Z

SHUNT

50 mm²

-

-

-

High Current Fuses

Time-Current Characteristics

% of Rating

Opening Time Min / Max (s)

125A - 250A

300A - 600A

50

– / –

14,400 / –

100

14,400 / –

– / –

135

120 / 1800

– / –

200

1 / 15

1 / 40

350

0.300 / 5

0.300 / 5

500

– / –

0.100 / 1 (only for 500A)

600

0.100 / 1

0.100 / 1 (except 600A)