■
AUTOMOTIVE AND COMMERCIAL VEHICLE
FUSE HOLDERS
About Littelfuse
Local Resources for a GLOBAL Market
Littelfuse products help protect,
control and distribute vehicle
electrical power in OEM and
aftermarket applications for
industries such as heavy-duty
truck, construction and agriculture.
We offer a broad and reliable selection
of fuses, fuse blocks, power distribution
modules, high-current switches, relays and
solenoids to fit your requirements.
Saskatoon
Madison
Troy
Rock
Rapid
Meridian
Beverly
Falls
City
Fremont
Prospect Plainville
Champaign Mt
Chicago
Milpitas
Brownsville
Round Rock
Long Beach
Piedras Negras
Jupiter
Allen
Muzquiz
Matamoros
Hermosillo
Matehuala
Trollhättan
Kaunas
Exeter
Amsterdam
Chippenham
Roskilde
Norwich Deventer
Swindon
Leiden
Bremen
Lampertheim
Essen
Lauf
Obertshausen
Lons-le-Saunier
Legnago
San Sebastian
Charneca de Caparica
Beijing
Wuxi
Suzhou
Noida
Dongguan
Shenzhen
Aurangabad
Seoul
Tsukuba
Seongnam
Tokyo
Shanghai
Kunshan
Taipei
Zhongshan City
Chu-Pei
Kowloon
Lipa City
Taguig City
Singapore
Manaus
For decades, we have helped OEMs, engineers and
end-users select the right product for their applications.
Today, Littelfuse offers the broadest range of products
for protection, sensing, and control needs while providing
exceptional service and support that our customers expect.
São Paulo
Why Choose Littelfuse
Littelfuse is the global leader in circuit protection solutions with the
broadest spectrum of electrical power technologies. Our Commercial
Vehicle Products portfolio provides a total solution to protect, control
and distribute vehicle electrical power.
Single Source for Vehicle Electrical Products
Littelfuse offers an extensive commercial vehicle product line and if
an off-the-shelf product does not fit your needs we can work with
you to develop a customized solution that fits your application.
Product Development and Testing Expertise
Our global team of engineers design innovative solutions, provide
customer support and perform product testing to ensure you have
the best solution that meets all requirements and regulations.
Global Support Team
Littelfuse has a world-wide team of specialist prepared to support
your application needs from conceptual development to continuous
quality assurance for the lifetime of your program.
Littelfuse.com/fuseholders
1
littelfuse.com/fuseholders
Fuse
Fuseology
Holders
Fuse Considerations
Beware of Counterfeit Fuses
Voltage Rating
At first glance, it’s hard to tell the difference between a genuine
Littelfuse blade fuse and a counterfeit. The counterfeit may have the
same physical dimensions, but using it can be dangerous because it
fails to perform to the stringent performance and safety specifications
developed by Littelfuse and the OEMs.
The voltage rating, marked on every fuse, indicates the maximum
voltage at which the fuse is designed to operate safely if an overcurrent
occurs.
In many cases, the elements in counterfeit fuses do not correspond
with the amperage specification stamped on the fuse. This will prevent
the elements from opening at the rated or correct amperage, which
could result in a fire causing serious damage to the vehicle, its contents
and its passengers.
Tip: The fuse voltage rating must equal or exceed this circuit voltage
where the fuse is installed. This is not a problem in fuse selection
because automotive fuse applications are typically around 12 volts,
while the voltage rating of the majority of Littelfuse automotive fuses
including ATO Fuse, MINI Fuse, MAXI Fuse and MEGA Fuse is 32 volts.
ADDING A CIRCUIT
Responding to this growing problem, the United States International
Trade Commission and then President Ronald Reagan issued and
approved an exclusion order in 1983 prohibiting the importation of the
look-alike blade fuses into the United States. This order was initiated
because many of these fuses were proven to be totally unsafe. The
photos shown here indicate why counterfeit fuses are potentially
unsafe and present a fire risk.
To guarantee quality and safety, look for the Littelfuse name on fuses
and fuse packaging.
Current Rating — Amperage
The current rating, marked on every fuse, is the maximum
current in amperes that the fuse can continuously carry under
specified conditions.
Tip: When selecting a fuse, make sure the current rating of the fuse is
the same amperage as the circuit. You can obtain the current rating of
a circuit by looking in the owner’s manual of the vehicle or checking to
see if it is written on the fuse block.
Overfusing and Underfusing
Overfusing is when the fuse has a current rating higher than the
rating of the circuit. In this case, the fuse will not be able to protect
the circuit properly because the circuit could reach overcurrent levels,
causing damage and safety hazards, before the fuse would blow.
Always use a circuit protection device with a fuse holder or fuse
block whenever adding additional circuits to ensure optimal safety.
The fastest, easiest option for installers who need to add a circuit
for applications such as electronic components, is the Littelfuse
Add-A-Circuit Fuse Holder. Add-A-Circuit, available in ATO® and MINI®
blade fuse versions, is designed to facilitate installation of fuses for
accessories of 10 amps or less. The Add-A-Circuit adapts the fuse block
to the installer’s needs, quickly turning one slot in the fuse block into
two, providing a safe, economical alternative to splicing or fusetaps.
Caution: Fusetaps are not a recommended alternative for adding
circuits because they can overstress the terminals in the fuse block.
This situation can create a loose fitting fuse, which in turn produces
excessive heat, which can cause nuisance blows,
even melting of the fuse and fuse block and
possibly an expensive repair in the future. When
a fusetap is used, in many cases there is no fuse
protecting the new circuit, a condition which can
also present a hazard.
Another alternative to adding a circuit is the
Littelfuse Battery Power Feed (BPF1). This device
attaches directly to the battery terminal, allowing
the addition of up to three circuits. Then use an inline fuse holder to protect the circuit properly.
Underfusing is when the fuse is rated at a current too far below the
rating of the circuit. In this case the fuse will blow, even though the
circuit is functioning normally without an overcurrent. Underfusing
almost guarantees that a fuse will blow repeatedly. This is referred to as
a nuisance blow.
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[Override]
Selecting
a Fuse
Selecting The Right Fuse
Understanding how circuit protection works is a key to
diagnosing automotive electrical problems. When a fuse
blows, that means the fuse is doing its job — sending you
a message that something needs to be fixed.
WHAT IS THE PURPOSE OF A FUSE?
A fuse is a safety valve. It is designed to stop current from exceeding the
rating of the wires or components. Without fuses, excessive current could
cause damage to electrical systems, and even result in fires.
In general, a fuse has a simple construction. The key component is the
“element” — a short piece of metal wire or strap.
WHAT CAUSES A FUSE TO BLOW?
The element is designed to melt at a
specific temperature, to protect wires and
equipment from overcurrents. An overcurrent
is any current that exceeds the amperage
rating or wiring capacity of equipment or
devices under normal c onditions of use.
If an overcurrent causes the current in a circuit to rise above a specific
level — often the circuit’s rating — the heat produced will melt the fuse’s
element, causing the fuse to “blow.” This opens the circuit and immediately
stops the flow of current. Fuses are designed to blow at temperatures far
below those that would cause damage or hazards.
Once a fuse is blown, it can be replaced to allow the current to flow again.
But simply replacing a fuse may not be the solution to the problem.
In fact, there is a chance the fuse will just blow again, because the fuse is
signaling a problem in the system. Understanding the factors that cause a
fuse to blow will help you diagnose automotive electrical problems.
There are two types of overcurrents that can cause a fuse to blow:
overloads and short circuits.
Overload
What: The current exceeds the amperage at which the wires or equipment
are rated.
Why: Too many devices are connected to one circuit, or a device
malfunctions and draws higher than its normal operating current. Sustained
overloads cause overheating of circuit components and the fuse blows.
Short Circuit
What: The current is out of its normal path.
Why: A malfunction creates an unintended path for electricity to flow from
the battery or alternator to ground. This can be caused by the touching of
any positive wire to a ground wire, e.g. due to frayed wire insulation, or
tools laid across the positive and ground wires of a circuit. The uncontrolled
current to ground then surpasses the normal resistance of the wire
contained in the circuit, forcing higher and higher current to the point of the
generating heat which blows the fuse.
3
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Bold letter indicates fuse block location.
A Left fire wall
G Behind/under dash left
B Right fire wall
H Behind/in glove box
C Right fender
J Behind/under dash right
D Right front
K Rear compartment
E Left front
IL In-line with device protected
F Left fender (locations may vary from car to car,
see your dealer.)
FINDING A FUSE
To be able to address fuse issues, you first must be able to locate
the appropriate fuse within the vehicle. In today’s vehicles, each
individual wire is protected by a circuit protection device.
Fuses are contained in fuse blocks located at various points
throughout the vehicle. The diagram above illustrates typical fuse
block locations.
SELECTING THE RIGHT FUSE
Once you have found the fuse that has blown, and solved the
problem in the vehicle, you must replace the blown fuse with an
appropriate device.
When selecting the right fuse for replacement, you should
consider the following:
Physical Type
The replacement fuse must be of the same physical type as the
blown fuse being replaced. It must be of the same style and
have the same dimensions so that it can fit properly in the fuse
block or fuse holder. Check your owner’s manual to determine the
appropriate fuse type.
Installation Tip: Littelfuse holds patents for the designs on most
automotive fuses. It is important to remember that the physical
type of the fuse is important, but it is not the only factor affecting
the fuse’s function. Although some fuses appear to be the same
type and dimension as Littelfuse fuses, they do not necessarily
have the same performance characteristics.
Look for the Littelfuse OEM Label
To guarantee the same level of
quality in circuit protection that the
major automotive manufacturers
require for their original equipment
fuses, look for the OEM seal on
Littelfuse aftermarket products.
Only Littelfuse products can
guarantee this level of quality.
Why Should You Use a Fuse Holder?
Every fuse requires a fuse holder for installation. That’s because fuse holders perform two essential functions.
The first is to mount the fuse or fuses in a convenient or easily accessible location, whether it is for the sake of
integration in assembly or for applications that require frequent serviceability.
The second job of a fuse holder is to shield the critical circuit protection elements in an application against environmental
conditions, whether it’s simply safeguarding against debris interfering with the connections or providing full waterproof
and dust-tight protection.
Application Considerations
Fuse holders are designed to work
with specific fuses. However, your
application requirements will dictate the
type of fuse and fuse holder you need.
When selecting a fuse and fuse holder,
consider your application’s electrical load
requirements, number of circuits, and
mounting location.
Do you need circuit protection for a lowamperage or high-amperage application?
Are you trying to protect multiple
circuits in a tight space? Will you need
to mount the fuse holder in an exposed
location?
Littelfuse offers a large portfolio of in-line
and bolt-down fuse holders, and fuse
blocks for high-current and low-current
applications as well as options that are
waterproof or splashproof or come with
an ignition protection rating.
In-Line Fuse Holders
ZCASE® FHZ bolt-down fuse holders
shown below can be found on page 7.
In-line fuse holders offer a flexible, quick
solution for placing fuses in cramped
spaces or for adding overflow circuits
or accessory circuits for low-current
applications, such as electronics,
panel displays, blower motors, air
conditioners, and lighting.
In our portfolio, you’ll find in-line fuse
holders for ATO®, MINI®, MAXI®,
JCASE®, MIDI®, and glass fuses. We
offer in-line fuse holders with various
wire lead sizes, colors, and lengths
to accommodate different industry
guidelines and applications. Plus, we
have options with and without covers
and with and without waterproof ratings.
Bolt-Down Fuse Holders & Fuse
Blocks
For high-current applications, such as
battery and alternator connections
and starter fusing, the electrical
requirements dictate the use of
larger fuses like MEGA®, MIDI®, and
ZCASE®. Because of their larger size
and placement requirements, these
fuses typically need a bolt-down fuse
holder or multi-fuse block to house and
protect them from harsh conditions.
For these applications, we offer batterymount, stud-mount, bolt-down fuse
holders with and without waterproof
ratings and ignition protection ratings.
Littelfuse also offers fuse blocks and
boxes for both high-amperage fuses,
such as MEGA® and MIDI®, and lowamperage fuses, such as ATO® and
MINI®, that are designed for efficient
multi-fuse installation and power
distribution.
Circuit Protection & Electrical Ratings
While the fuse is what we typically think
of as providing the circuit protection
because it is the weak link that breaks
when there is a type of fault in the
circuit, the fuse holder is an essential
part of circuit protection that helps
prevent injuries and damage to vehicles.
Though fuse holders are designed
to work with specific fuse types, it
is important to look for the electrical
ratings, such as maximum voltage and
maximum current, of the fuse holder to
ensure the fuse holder can support the
intended fuse.
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4
Selection Guide
ZCASE® Fuse Holders
Battery-mount, stud-mount, and multi-fuse power
distribution options for 32V ZCASE® fuses.
Series Name
ZCASE-BMZ
ZCASE-SMZ
Description
The ZCASE® BMZ battery-mounted fuse holder lets you install high-current fusing
on a post-style battery. Insulated bolts allow fuse assembly using standard M8
threaded hardware.
The space-saving ZCASE® SMZ stud-mount fuse holder features an insulted M8
stud on the busbar and enables direct installation of fuses on an alternator, battery
switch, or electrical relay.
Part Numbers
0FHZ00853-BX
0FHZ00854-BX
0FHZ0201Z
0FHZ0202Z
275A
M8 Stud Mount Battery terminal
32V DC
3-Position
275A
M8 Stud Mount Battery terminal
32V DC
2-Position
400A
400A
M8
M8
32V DC
With Fuse & Stud Cover
32V DC
With Fuse Cover
Product Image
Max Current Rating
Mounting Method
Max Voltage Rating
Notes
ZCASE-SMZ
Series Name
The space-saving ZCASE® SMZ stud-mount fuse holder features an insulted M8 stud on the busbar and enables direct installation
of fuses on an alternator, battery switch, or electrical relay.
Description
Part Numbers
0FHZ0211Z
0FHZ0212Z
0FHZ0231Z
0FHZ0232Z
0FHZ0233Z
0FHZ0241Z
400A
M10
32V DC
With Fuse &
Stud Cover
400A
M10
32V DC
With Fuse
Cover
400A
M6
32V DC
With Fuse &
Stud Cover
400A
M6
32V DC
With Fuse
Cover
400A
M6
32V DC
400A
M10
80V DC
With Fuse
Holder
Product Image
Max Current Rating
Mounting Method
Max Voltage Rating
Notes
Series Name
ZCASE-BMZB
Description
The ZCASE® BMZB battery-mounted fuse holder is for up to 400A ZCASE® M6 fuses. It
features an integrated busbar and eliminates the need for additional or complex wiring
around a battery system.
FHZ210
FHZ310
FHZ410
Max Voltage Rating
400A
Post-Style Battery Terminal
32V DC
400A
Post-Style Battery
Terminal
32V DC
400A
Post-Style Battery
Terminal
32V DC
Notes
2-Position
3-Position
4-Position
Part Numbers
Without Cover
Product Image
Max Current Rating
Mounting Method
Series Name
ZCASE-FHZ
Description
The space-saving ZCASE® FHZ bolt-down fuse holder. This product works with ZCASE Fuse Rated 32V.
0FHZ0002Z
0FHZ0005Z
0FHZ0007Z
0FHZ0009Z
400A
Bolt-Down
32V DC
5-Stud Assembly
400A
Bolt-Down
32V DC
5-Stud Assembly
400A
Bolt-Down
32V DC
7-Stud Assembly
400A
Bolt-Down
32V DC
7-Stud Assembly
Part Numbers
Product Image
Max Current Rating
Mounting Method
Max Voltage Rating
Notes
5
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Selection Guide
MEGA® Fuse Holders
Sealed, flexible, and splashproof options for
high-current 32V MEGA® bolt-down fuses.
Series Name
MEGA-298-Splashproof
Description
The MEGA® 298 Splashproof Series fuse holder with M8 stud input and output
terminals is ideal for battery and alternator connections. When mated, the nylon
base and cover provide splashproof protection.
298907-030
298907-040
Max Current Rating
250A
Mounting Method
Plastic tab with M6 hole
Max Voltage Rating
70V DC
Base
Plastic tab with M3.8 hole
(Mates with 298907-030 base)
Cover
Part Numbers
Product Image
Notes
Series Name
MEGA-Flex
Description
The MEGA® Flex fuse holder has a flexible cover to accommodate large wire sizes and ring terminal stack up.
A dovetail feature lets you use multiple fuse holders to create a power distribution block.
Part Numbers
02981028HXFC-SS
02981028HXFC
02981028HXFC-RED
Product Image
Max Voltage Rating
500A
Bolt-Down, M6 Mounting hole and
M6 Slot X 6MM Long
70V DC
500A
500A
Bolt-Down, M6 Mounting hole and Bolt-Down, M6 Mounting hole and
M6 Slot X 6MM Long
M6 Slot X 6MM Long
70V DC
70V DC
Notes
Stainless Steel Hardware, Black Cover
Zinc-Plated Steel Hardware, Black Cover Zinc-Plated Steel Hardware, Red Cover
Max Current Rating
Mounting Method
Series Name
MEGA-298-Bolt-Down
Description
The MEGA 298 Bolt-Down Series fuse holder provides ultra-high-current protection. A dovetail feature lets you connect multiple fuse holders for
multi-fuse applications.
®
02981039ZXT
02981001ZXT
02981003ZXT
02980900Z
02980900S
Max Current Rating
500A
500A
500A
500A
250A
Mounting Method
Bolt-Down,
M6 Slots x 15mm
Long
Bolt-Down, M6
Mounting Holes
Bolt-Down, M6
Mounting Holes
Bolt-Down,
M6 Mounting Holes
Bolt-Down, M6
Mounting Holes
Max Voltage Rating
70V DC
70V DC
70V DC
70V DC
70V DC
Part Numbers
Product Image
Series Name
MEGA-SN
Description
The MEGA® SN sealed, in-line fuse holder is for high-current, in-line main or branch circuit protection in harsh environments. AssureLatch™ technology
ensures water resistance (IP66/P69K) and ignition protection (SAE J1171/ISO 8846).
Part Numbers
880014150
880014175
880014
880014125
150A
Bolt-Down, M6 Mounting
hole and M6 Slot x 6mm
Long
70V DC
With 150A Fuse
175A
Bolt-Down, M6 Mounting
hole and M6 Slot x 6mm
Long
70V DC
With 175A Fuse
500A
Bolt-Down, M6 Mounting
hole and M6 Slot x 6mm
Long
70V DC
Without Fuse
125A
Bolt-Down, M6 Mounting
hole and M6 Slot x 6mm
Long
70V DC
With 125A Fuse
Product Image
Max Current Rating
Mounting Method
Max Voltage Rating
Notes
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Selection
[Override]Guide
MINI® Fuse Holders
Sealed in-line, PCB-mount, and fuse block options for 32V MINI® fuses,
plus Add-A-Circuit ® options for 32V and 58V MINI® fuses.
Series Name
SD MINI
Description
SD MINI® fuse blocks feature LED indicators that alert you to blown fuses, enabling quick maintenance and decreased equipment
downtime. A snap-on, insulating cover is included.
880024
880025
880026
100A
Bolt-Down; 4xM5
32V DC
4 Cavities
100A
Bolt-Down; 4xM5
32V DC
6 Cavities
100A
Bolt-Down; 4xM5
32V DC
10 Cavities
Part Numbers
Product Image
Max Current Rating
Mounting Method
Max Voltage Rating
Notes
Series Name
Add A Circuit MINI Carded
Description
The MINI Add-A-Circuit® fuse holder for MINI® or Low Profile MINI® fuses allows installation of additional circuits without
cutting or splicing. The fuse tap turns 1 fuse slot into 2 to protect the new and existing circuits.
®
0FHM0200Z
FHLM0200Z
10A
In-Line Fuse Holder Blades / Butt Splice
Connector
32V DC
MINI Fuse
100A
In-Line Fuse Holder Blades / Butt Splice
Connector
58V DC
Low Profile MINI Fuse
Part Numbers
Product Image
Max Current Rating
Mounting Method
Max Voltage Rating
Notes
Series Name
MINI-FL1
Description
The MINI FL1 fuse holder lets you add a MINI fuse to a printed circuit board (PCB). A heat-resistant body with a
UL 94 V-0 flammability rating makes it ideal for accessory, sensor, and vehicle control circuits. Fits a 7.62mm pitch.
Part Numbers
178.6764.0001
®
®
Product Image
Max Current Rating
Mounting Method
Max Voltage Rating
Notes
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30A
PCB Mount
32V DC
Stand-Alone Vertical Holder
Selection
Selection Guide
Guide
MINI® Fuse Holders (continued)
Series Name
MINI-153-PC
Description
The MINI® 153-PC fuse holder features a circuit board locking anchor for secure installation of a MINI® blade-style fuse.
Horizontal, stackable vertical, and single vertical (end unit) mounting options are available.
Part Numbers
01530007Z
01530008Z
01530009Z
20A
PC Horizontal Mount
32V DC
4 Cavities
20A
PC Vertical Mount
32V DC
End Unit (No Post)
20A
PC Vertical Mount
32V DC
With Interlocking Post
Product Image
Max Current Rating
Mounting Method
Max Voltage Rating
Notes
Series Name
MINI-FHM
Description
The MINI 153-PC fuse holder features a circuit board locking anchor for secure installation of a MINI® blade-style fuse.
Horizontal, stackable vertical, and single vertical (end unit) mounting options are available.
®
Part Numbers
0FHM0001SXJ
0FHM0002SXJ
20A
In-Line
32V DC
Black 14 AWG Wire
30A
In-Line
32V DC
Orange 12 AWG Wire
Product Image
Max Current Rating
Mounting Method
Max Voltage Rating
Notes
Series Name
Sealed MINI Inline Fuse Holder
Description
The MINI 153-PC fuse holder features a circuit board locking anchor for secure installation of a MINI® blade-style fuse.
Horizontal, stackable vertical, and single vertical (end unit) mounting options are available.
Part Numbers
®
FHMS200
FHMS201
30A
In-Line
32V DC
Red 12 AWG GXL Wire
20A
In-Line
32V DC
Red 14 AWG GXL Wire
Product Image
Max Current Rating
Mounting Method
Max Voltage Rating
Notes
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Selection
[Override]Guide
ATO® Fuse Holders
Add-A-Circuit ®, fuse block, and sealed in-line options for 32V ATO®
blade-style fuses, plus PCB-mount options for 32V and 58V ATO® fuses.
Series Name
ZCASE-BMZ
Add A Circuit ATO
Description
The ATO® Sealed In-Line Series waterproof fuse holder makes it simple
to install an ATO® blade-style fuse in a wet or dirty environment outside
of the cab. IP67 rating. Red GXL wire leads.
The ATO® Add-A-Circuit® in-line fuse holder allows easy installation of an
added circuit without cutting or splicing. The fuse tap turns a single fuse slot
into two.
Part Numbers
FHAS100
FHAS101
0FHA0200Z
30A
In-Line
32V DC
1 Cavity
20A
In-Line
32V DC
1 Cavity
400A
In-Line
32V DC
Includes a 16 AWG UL1015 Wire Lead
Product Image
Max Current Rating
Mounting Method
Max Voltage Rating
Notes
Series Name
SD ATO
Description
SD ATO® fuse blocks feature LED indicators that alert you to blown fuses, enabling quick maintenance and decreased equipment
downtime. A snap-on, insulating cover is included.
880021
880022
880023
100A
Bolt-Down; 4xM5
32V DC
4 Cavities
100A
Bolt-Down; 4xM5
32V DC
6 Cavities
100A
Bolt-Down; 4xM5
32V DC
10 Cavities
Part Numbers
Product Image
Max Current Rating
Mounting Method
Max Voltage Rating
Notes
Series Name
ST ATO
Description
ST ATO fuse blocks centralize wiring into a single, convenient location and ensure the safe distribution of power. They feature
an integrated negative busbar and include a sheet of circuit identification labels and a snap-on, insulating cover.
®
Part Numbers
880027
880028
100A
Bolt-Down; 4xM5
32V DC
6 Cavities
100A
Bolt-Down; 4xM5
32V DC
12 Cavities
Product Image
Max Current Rating
Mounting Method
Max Voltage Rating
Notes
9
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Selection
Selection Guide
Guide
ATO® Fuse Holders (continued)
Series Name
ATO-155
ATO-AFH
Description
The ATO® 155 stackable, in-line, panel-mount fuse holder with looped
wire leads makes it simple to install an ATO® or FKS blade-style
automotive fuse.
ATO® FH2 stackable-block, panel-mount fuse holders can be attached in the
x- and y-direction and feature a thermoplastic body with a UL 94 V-0 rating and
a transparent cover.
Part Numbers
01550300Z
01550400Z
0AFH0001Z
20A
In-Line
32V DC
Black 14 AWG Wire
30A
In-Line
32V DC
Orange 10 AWG Wire
20A
In-Line
32V DC
Without Fuse
Product Image
Max Current Rating
Mounting Method
Max Voltage Rating
Notes
Series Name
ATO-FHAC
Description
The ATO® FHAC waterproof, in-line fuse holder features a built-in protective cover to provide an IP67-rated enclosure.
Part Numbers
FHAC0001ZXJ
FHAC0002ZXJ
30A
In-Line
32V DC
Black 16 AWG Wire
30A
In-Line
32 VDC
Orange 12 AWG GXL Wire
FHAC0001ZXJG
Product Image
Max Current Rating
Mounting Method
Max Voltage Rating
Notes
40A
In-Line
32 VDC
Black 16 AWG Wire
Series Name
ATO-FHA
Description
The ATO® FHA fuse holder has wire leads for easy in-line installation.
It features a heat-resistant body and tin-plated copper alloy contacts.
Part Numbers
0FHA0001SXJ
0FHA0002SXJ
20A
In-Line
32V DC
Black 16 AWG Wire
30A
In-Line
32V DC
Orange 12 AWG Wire
Product Image
Max Current Rating
Mounting Method
Max Voltage Rating
Notes
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10
Selection
[Override]Guide
ATO® Fuse Holders (continued)
ATO-FKH
277 In-Line
Designed for 32V ATO® blade-style fuses up to 30A, the ATO® FKH inline fuse holder is also compatible with FKS fuses at 80V DC.
The 277 In-Line fuse holder features a tethered cover that provides waterproof
protection. Red PVC FLY HT105° ISO 6722 leads enable simple in-line
installation.
Series Name
Description
Part Numbers
178.6152.0002
178.6152.0001
277.6306.0001
30A
In-Line
80V
30A
In-Line
80V
20A
In-Line
32V DC
DFK-2 Spring Leaf
Terminals; Bulk Pack
DFK-2 Spring Leaf Terminals
Fuse Holder with Cover
Product Image
Max Current Rating
Mounting Method
Max Voltage Rating
Notes
Series Name
ATO-FBA5
Description
The ATO FBA5 5-Position terminal fuse block helps you protect up to 5 circuits using ATO® blade fuses.
Panel-mount and PCB options are available. A clear cover provides protection while making it easy to identify blown fuses.
®
03500418Z
03500417Z
03500420Z
15A
Vertical Contacts
32V DC
15A
Horizontal Contacts
32V DC
15A
PCB Contacts
32V DC
Quick Connect Tin-Plated Brass Terminals on Bottom of Box; Includes
Detachable Side-Mounting Brackets
Quick Connect Tin-Plated Brass Terminals on Side of Box
5 Cavities
Part Numbers
Product Image
Max Current Rating
Mounting Method
Max Voltage Rating
Notes
Series Name
ATO-FLR
Description
ATO® FLR printed circuit board (PCB) fuse holders are for throughhole soldering. A locking
feature secures the UL 94 V-0 thermoplastic housing to a PCB prior to welding.
Part Numbers
178.4265.0002
Product Image
Max Current Rating
Mounting Method
Max Voltage Rating
Notes
11
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10A
PCB Mount
58V DC
4 Mounting Pins
Selection Guide
MIDI® Fuse Holders
In-line, bolt-down, and flexible options for 32V MIDI® fuses.
Series Name
MIDI-498-IL
MIDI-Flex
Description
The MIDI® 498-IL in-line fuse holder provides high-current main
or branch circuit protection in harsh conditions. A curved cover
enables the use of heat shrink tubing (not included) for added
splash protection.
The MIDI Flex fuse holder has a flexible cover to accommodate large wire
sizes and ring terminal stack up. A dovetail feature lets you use multiple fuse
holders to create a power distribution block.
Part Numbers
04980921GXM5
04981038HXFC
200A
In-Line
58V DC
Base and Cover
200A
Bolt-Down
58V DC
Flexible Cover Included
®
Product Image
Max Current Rating
Mounting Method
Max Voltage Rating
Notes
Series Name
MIDI-498
Description
Featuring interlocking pins, the MIDI® 498 fuse holder with M5 threaded studs can be used to install a single MIDI® fuse or combined with additional fuse
holders to create a fuse block. Base styles are available with and without mounting brackets.
04980900ZXT
04980902ZXT
04980903ZXT
04980908ZXT
Max Current Rating
200A
200A
200A
200A
Mounting Method
Bolt-Down
Bolt-Down
Bolt-Down
Bolt-Down
Max Voltage Rating
58V DC
With 150A Fuse
58V DC
With 175A Fuse
58V DC
Without Fuse
58V DC
With 125A Fuse
Part Numbers
Product Image
Notes
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12
Selection
[Override]Guide
MAXI® Fuse Holders
Splashproof, screw-terminal, and bulkhead mounting options
for 32V MAXI® blade-style fuses.
Series Name
MAXI-MAH
MAXI-MAB
Description
The MAXI MAH in-line fuse holder has a tethered protective cover and
a center hole in the body for easy bulkhead mounting.
The MAXI® MAB in-line, screw-terminal fuse holder safely and
easily replaces hard-to-change fusible link wire, making it ideal for high-amp
audio circuit protection. Interlocking feature for 2-pole installation.
Part Numbers
®
MAHC0001ZXJ
MAHC0001ZXJA
0MAB0001XP
60A
In-Line
32V DC
Black 6 AWG Wire
60A
In-Line
32V DC
Red 6 AWG Wire
60A
In-Line
32V DC
Maxi FuseBlock without Fuse
Product Image
Max Current Rating
Mounting Method
Max Voltage Rating
Notes
Series Name
MAXI-152
Description
The MAXI 152 in-line, IP54 splashproof fuse holder protects fusing in harsh conditions. Available in 60A and 80A configurations with or without molded mounting
tabs. Cable seals are available in various sizes.
Part Numbers
®
01520003U
01520004Z
01520005Z
01520006Z
01520008Z
01520009Z
80 A
In-Line
32V DC
80 A
In-Line
32V DC
80 A
In-Line
32V DC
80 A
In-Line
80 A
In-Line
32V DC
32V DC
80 A
In-Line
32V DC
Without Mounting
Tabs;
Interlocking Post
With Open
Mounting Tabs
With Closed
Mounting Tabs
Without
Mounting Tabs
With Closed
Mounting Tabs
Without
Mounting Tabs
Product Image
Max Current Rating
Mounting Method
Max Voltage Rating
Notes
13
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Selection
Selection Guide
Guide
Glass® Fuse Holders
Bolt-down, multi-fuse, and in-line options for 32V glass fuses.
Series Name
Glass-FBG
Description
The Glass FBG multi-pole bolt-down fuse block is compatible with SFE and AGC (3AG) glass fuses and comes in a variety of configurations,
including 4-pole, 5-pole, 6-pole, and 8-pole versions.
M-414-01
M-415-01
M-641-01
M-643-01
M-674
Max Current Rating
20A
20A
20A
20A
20A
Mounting Method
Bolt-Down
Bolt-Down
Bolt-Down
Bolt-Down
Bolt-Down
Max Voltage Rating
32V DC
32V DC
32V DC
32V DC
32V DC
8 Positions
Term Block 4 Positions
Part Numbers
Product Image
Notes
4 Positions
5 Positions
6 Positions
Glass-FNY
Glass-FHP
Glass-3031
Description
The Glass FNY in-line fuse holder
accepts SFE, AGA, AGW, and AGX glass
fuses. A spring-loaded, twist-lock body
ensures easy fuse installation.
The Glass FHP in-line, bayonet knob fuse
holder comes with 3 springs to allow use
with glass SFE (7.5, 9, 14, and 20) and AGC
(3AG) up to 20 amps. The red 15” looped
14 AWG wire makes in-line installation
easy.
The Glass 3031 fuse holder
accommodates SFE glass fuses and AGC
(3AG) glass fuses. The in-line fuse holder
features an 8” looped 14 AWG GPT lead,
large brass contacts, and a positive
twist-lock seal.
Part Numbers
0FNY0001ZXJ
0FHP0001Z
3031-0
20A
In-Line
32V DC
Black 14 AWG Wire
100A
In-Line
32V DC
Red 14 AWG Wire
5A
In-Line
32V DC
Fuse Connector
Series Name
Product Image
Max Current Rating
Mounting Method
Max Voltage Rating
Notes
JCASE® Fuse Holders
In-line options for 58V JCASE® and Low-Profile
JCASE® fuses rated for 40A and 60A.
Series Name
JCASE-FHJ
Description
The JCASE® FHJ in-line fuse holder comes with 10 AWG or 8 AWG leads for compatibility with up to
40A or 60A JCASE® or Low-Profile JCASE® fuses. Versions with a splashproof cover and/or integrated mounting bracket
are available.
FHJC1001G
FHJC1002G
FHJC2002G
20A
20A
Max Voltage Rating
40A
In-Line
58V DC
In-Line
58V DC
In-Line
58V DC
Notes
Red 10 AWG GXL Wire
Red 8 AWG GXL Wire
Red 8 AWG GXL Wire
Part Numbers
Product Image
Max Current Rating
Mounting Method
littelfuse.com/fuseholders
14
Selection
[Override]Guide
Multi-Fuse Power Distribution Fuse Holders
Multi-fuse power distribution boxes for 32V and 70V MIDI® & MEGA® fuses.
Series Name
MDB5
Description
The MDB5 sealed, high-current power distribution box is IP67/69K rated, features a high continuous current capacity of 400A,
and holds 2 MEGA® and 3 MIDI® bolt-down fuses. Configurations are available for standard 32V and 70V (48V applications) fuses.
07985001ZXS
07985003ZXS
07985002ZXS
07985004ZXS
Fuse Type
2 - MEGA®
3 - MIDI®
2 - MEGA®
3 - MIDI®
Max Current Rating
One 50mm² Input Wire:
200A
Two 50mm² Input Wires:
400A
One 50mm² Input Wire:
200A
Two 50mm² Input Wires:
400A
2 - MEGA®
3 - MIDI®
One 50mm² Input Wire:
200A
Two 50mm² Input Wires:
400A
2 - MEGA®
3 - MIDI®
One 50mm² Input Wire:
200A
Two 50mm² Input Wires:
400A
Mounting Method
Bolt-Down
Bolt-Down
Bolt-Down
Bolt-Down
Part Numbers
Product Image
Max Voltage Rating
32V DC
32V DC
70V DC
70V DC
Notes
Covered Mating Terminals
Covered Mating Terminals
Sealed Mating Terminals
Sealed Mating Terminals
15
littelfuse.com/fuseholders
Selection
SelectionGuide
Guide
Hard-Wired Power Distribution Fuse Holders
Sealed, hard-wired power distribution boxes for MINI® fuses and ISO 280-style relays and components.
PDM31001ZXM
PDM71001ZXM
PDM21001LXM
PDM33001ZXM
PDM32001ZXM
FUSE TYPE
NUMBER OF CAVITIES
INGRESS PROTECTION
RATING
MATING TERMINALS
& SEALS
MINI
6
IP67/IP69K
Tyco MCP
30A
68A
MINI
6
IP67/IP69K
Tyco MCP
PDM32003ZXM
30A
68A
MINI
6
IP67/IP69K
Tyco MCP
PDM32004ZXM
30A
68A
MINI
6
IP67/IP69K
Tyco MCP
PDM33001ZXM
30A
130A
MINI
•
12
IP67/IP69K
Tyco MCP
30A
130A
MINI
•
12
IP67/IP69K
Tyco MCP
PDM33003ZXM
30A
130A
MINI
•
12
IP67/IP69K
Tyco MCP
PDM33004ZXM
30A
130A
MINI
•
12
IP67/IP69K
Tyco MCP
•
PDM31001ZXM
30A
100A
MINI
•
18
IP67/IP69K
Delphi Metri-Pack 280
•
•
30A
100A
MINI
•
18
IP67/IP69K
Delphi Metri-Pack 280
•
•
PDM31003ZXM
30A
100A
MINI
•
18
IP67/IP69K
Delphi Metri-Pack 280
•
•
PDM71001ZXM
30A
250A
MINI
•
60
IP67/IP69K
Delphi Metri-Pack 280
•
PDM71003ZXM
30A
250A
MINI
•
60
IP67/IP69K
Delphi Metri-Pack 280
•
30A
250A
MINI
•
60
IP67/IP69K
Delphi Metri-Pack 280
•
•
30A
250A
MINI
•
60
IP67/IP69K
Delphi Metri-Pack 280
•
•
PDM71008ZXM
30A
250A
MINI
•
60
IP67/IP69K
Delphi Metri-Pack 280
•
PDM71009ZXM
30A
250A
MINI
•
60
IP67/IP69K
Delphi Metri-Pack 280
•
30A
250A
MINI
•
60
IP67/IP69K
Delphi Metri-Pack 280
•
30°
TPAS INCLUDED
GASKET
90°
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
GRID
•
TOOL
BLACK
MOUNTING
BRACKET
ASSURELATCH™
FINGER
PDM32002ZXM
COVER
CLEAR
PDM32001ZXM
ACCEPTS ISO 280
STYLE RELAYS
MAX CONTINUOUS
CURRENT
68A
SERIES
30A
PART NUMBER
MAX FUSE RATING
(PER CIRCUIT)
HARD WIRED BOXES
HWB6
PDM33002ZXM
•
•
•
•
HWB12
PDM31002ZXM
PDM71004ZXM
PDM71006ZXM
PDM21001LXM
HWB18
HWB60AL
HWB60
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
littelfuse.com/fuseholders
•
16
PRODUCT INFORMATION &
RESOURCES available at: littelfuse.com/CVP
Littelfuse publishes technical documents to help in the design and
selection of products for your electrical systems. To learn more about
a specific product or application, visit our online library at:
Littelfuse.com/Commercial-Vehicle-Technical-Center
Extended Datasheets
Application Notes
CAD Drawings
2D Outlines
3D Models
Glossary
FAQ
Littelfuse.com/Catalogs
Littelfuse offers digital and printed catalogs and other product
brochures. To request a copy, please contact Littelfuse or download
the digital version on our website.
Our product catalogs feature circuit protection, power control and
sensing products for OEM and aftermarket applications.
Littelfuse.com/ContactUs
Contact Littelfuse support or find a local representative or distributor.
A Littelfuse Brand
©2023 Littelfuse, Inc.
Specifications, descriptions and illustrative material in this catalog are subject to change
without notice. Visit littelfuse.com for the most up-to-date technical information.
Littelfuse, Inc.
Chicago, Illinois USA
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