littelfuse.com
37
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
®
.
Temperature Table
REV08262021
Specications
Voltage Rating: 80 VDC
Interrupting Rating: 2000A @ 80 VDC
Recommended Environmental Temperature: -40°C to +125°C
Housing Material: PPA-GF33HS (U.L. 94 Flammability rating - HB)
Terminals Material: Tin Plated Copper Alloy
Insulating Tube: Out of Ceramic
Net Weight Per Fuse: 22±10% gr
Mounting Torque M10: 18±2 Nm
Ordering Information
Part Number Rating
Package
Size
3998XXX.ZXM10 70 - 600
& SHUNT
480
Ratings
Part number Current Rating
(A)
Test Cable
Size (mm
2
)
Typ. Voltage
Drop (mV)
Typ. Cold Resistance
(mΩ)
Typ. I²t
(A
2
s)
3998070._ 70 10 84 0.88 28,300
3998080._ 80 10 95 0.78 32,000
3998100._ 100 16 80 0.57 23,200
3998125._ 125 16 90 0.46 52,000
3998150._ 150 25 78 0.34 81,600
3998160._ 160 25 82 0.34 82,800
3998175._ 175 25 97
0.29 150,000
3998200._ 200 35 94 0.26 165,300
3998225._ 225 35 80 0.18 126,900
3998250._ 250 50 82 0.17 160,900
3998300._ ² 300 50 52 ³ 0.14 259,200
3998350._ ² 350 50 29 ³ 0.10 583,900
3998400._ ² 400 70 27 ³
0.08 913,300
3998425._ ¹ ² 425 70 30 ³ 0.08 690,200
3998500._ ² 500 70 59 ³ 0.08 1,384,300
3998600._ ¹ ² 600 70 33 ³ 0.05 2,771,800
3998900._ ¹ SHUNT 70 --- 0.06 ---
Time-Current Characteristics
% of
Rating
Opening Time Min / Max (s)
70A - 250A 300A - 500A 600A
75 – / – 14,400 / ∞ 14,400 / ∞
100 14,400 / ∞ – / – – / –
135 120 / 1800 – / – – / –
200 1 / 15 1 / 40 1 / 40
350 0.3 / 5 0.3 / 5 0.3 / 5
500 – / – – / – 0.1 / 1
600 0.1 / 1 0.1 / 1 – / –
ZCASE M10 Bolt Down Single Material Handling Fuse
The Single ZCASE is a Minimal Footprint Bolt Down Fuse optimized for a one bolt connection
M10 with a wide rating range from 70A to 600A in the same packaging size. The Time
Current characteristic is similar to the well known MEGA Design and can be used as full wire
protection until 250A. Higher ratings fuses are mostly used in trucks, buses, agriculture and
construction equipment’s or Material handling for typically Starter protector fuse.
ZCASE M10 Bolt Down
Single Material Handling Fuse
* Note 1: Not mentioned in ISO standards
* Note 2: Short Circuit Protector only
* Note 3: Voltage Drop measurements for short circuit protectors taken at 50% of rated current.
Time-Current Characteristic Curves
0.01
0.1
1
10
100
1000
10000
10 100 1000 10000
TIME [s]
CURRENT [A]
150A
175A
80A
125A
100A
250A
200A
225A
70A
160A
0.01
0.1
1
10
100
1000
10000
100 10000
600A
400A
500A
300A
350A
425A
1000
TIME [s]
CURRENT [A]
The I
2
t value is calculated from the breaking capacity tests by using the current time profile before the arcing occurs.
High Current Fuses
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
38
0
20
40
60
80
100
120
140
160
180
200
220
240
260
280
300
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180
Max. Allowed Current Load [A]
Ambient Temperature [°C]
8 0A
100A
125A
150A
160A
175A
200A
225A
0
20
40
60
80
100
120
140
160
180
200
220
240
260
280
300
320
340
360
380
400
420
440
460
480
500
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 13 0 140 150 16 0 170 180
Max. Allowed Current Load [A]
Ambient Temperature [°C]
300A
350A
400A
425A
500A
600A
SH U NT
Please contact your Littelfuse representative for application support and information on mating hardware.
High Current Fuses
ZCASE M10 Bolt Down Down Single Material Handling
Dimensions
Dimensions in mm for reference only.
See outline drawing for dimensions and tolerances.
Assembly Components (sold separately)
Part No. Description
902-192 Insulated M10 Bolt (Required for installation/operation)
12.5 12.5
ø10.5
25
19.3
12
16
31.3
Rev: 041619© 2019 Littelfuse Commercial Vehicle Products
littelfuse.com
Installation Instructions
Sealed M10 ZCASE
®
Fuse
Part Numbers: 3998600.ZXM10-S, 902-192, and 3998600.ZXM10-SB
Description
The Sealed M10 ZCASE fuse is designed to mount directly to
a standard forklift battery to provide short circuit protection
to the highest current circuits powering electric vehicles.
Its placement on the battery eliminates the need for any
unfused, high-current wires off of the battery—even the
battery terminal itself is protected from short circuits and
accidental contact. In the event of an electrical fault, the
ZCASE style fuse performs quickly and effectively, while also
eliminating the false blows seen in legacy high speed fuse
designs.
Specifications Overview
Amperage: 600A
Voltage Rating: 80V DC
Fuse Terminal Torque: 18±2Nm
Ingress Protection: IP67 / IP69K*
Housing: TPU UL94 V0
Output Connectors: M10
Special Ratings: IEC 60079-0 Explosion-Proof*
Figure 1 - Front and Side View
Ordering Information
PART NUMBERS DESCRIPTION
3998600.ZXM10-S Sealed M10 Battery Mount ZCASE Fuse
3998600.ZXM10-SB
Sealed M10 Battery Mount ZCASE Fuse +
Insulated M10 Bolt Kit
902-192
Insulated M10 Bolt
(Required for Installation/Operation)
STEP
1
Place components onto the battery pole as
depicted above.
(sealed ZCASE + sealed cable + insulated bolt)
STEP
2
ZCASE to be oriented with in-molded cable contact
ring protruding upwards and writing facing right-
side-up.
STEP
3
Tighten bolt and torque to 18 +/- 2Nm
Web Resources
Download datasheet, 2D print, 3D model and more at:
littelfuse.com/SealedM10ZCASE
3998600.ZXM10-S
902-192
Specifications, descriptions and illustrative material in this literature are as accurate as known at the time of publication, but are subject to changes without notice.
Visit littelfuse.com for the most up-to-date technical information.
*Ratings achieved and statements applicable only when
used with insulated bolt and a sealed cable lug
13.5
11
8
26.5
(M10)
ø10.2
ø26
ø10
ø50.5
22
Typical Derating Of Fuse Melting Element
Temperature Security Margin is 20%
Please Contact Littelfuse
®
For Details Regarding Derating Test Set Up
max. allowed current load [A] at ambient temperature (typical derating)
-40°C 0°C 20°C 65°C 85°C 110°C 125°C
70A Coming Up
80A 80 80 80 66 59 49 42
100A 100 100 100 90 81 68 59
125A 125 125 119 100 89 75 65
150A 150 150 150 125 112 94 81
160A 160 157 148 126 115 98 86
175A 160 157 148 126 115 98 86
200A 175 174 164 139 125 106 93
225A 200 182 171 143 129 108 94
250A 225 225 214 181 165 140 123
300A 225 225 225 225 225 197 170
350A 263 263 263 263 263 226 197
400A 300 300 300 300 300 257 224
425A 319 319 316 269 244 209 183
500A 375 355 334 282 255 215 188
600A 436 391 367 307 276 231 200
SHUNT 450 450 435 364 328 275 238
Derating curves may change depending on the nal condition of the application (terminals characteristics, wire
size exc..). Please ask Littelfuse
®
for more information.
All ZCASE Derating curves were performed on the specic xture
as shown in the picture.
A 50 mm² Cu wire was mounted at the opposite fuse side of the
metal bar as current feed. (Only for the SHUNT, a 70 mm2 wire
size was used as current feed).
Max. Recommended
Environmental
Temperature
Max. Recommended
Environmental
Temperature
REV08262021