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The Autoido 32V ATC/ATO inline blade fuse holder is designed to protect individual DC circuits using standard automotive blade fuses. It is installed in series with the power cable and provides a replaceable fuse position for automotive and other low-voltage electrical applications.
The fuse holder supports ATC/ATO blade fuses from 1A to 40A, with common ratings including 5A, 7.5A, 10A, 15A, 20A, 25A, 30A and 40A. It is available with 10–22 AWG wire, a standard cable length of approximately 300 mm, and customizable wire and terminal configurations.
Typical applications include cars, trucks, RVs, motorcycles, boats and other DC accessory circuits.
Compatible with standard ATC/ATO blade fuses
32V DC automotive application
Inline design for standalone circuit protection
Weatherproof protective fuse cover
10–22 AWG wire options available
Durable insulated housing
Reliable metal terminals
Replaceable blade fuse design
Custom wire length and terminal options
OEM/ODM and bulk supply available
| Specification | Details |
|---|---|
| Product Type | ATC/ATO Inline Fuse Holder |
| Rated Voltage | 32V DC |
| Compatible Fuse | Standard ATC/ATO Blade Fuse |
| Compatible Fuse Ratings | According to fuse and wire configuration |
| Wire Gauge | 16 AWG （options） |
| Cable Type | UL1015 / UL1007 options |
| Cable Length | Approx. 300 mm or customized |
| Housing Material | PVC |
| Terminal Material | Tin-Plated Brass |
| Protection | Weatherproof protective cover |
| Installation | Inline wiring |
| Applications | Automotive and DC accessory circuits |
| OEM / ODM | Available |
The fuse rating must be selected according to the protected wire, circuit current and electrical load.
An inline fuse holder is installed in series between the power source and the electrical load.
Typical circuit:
Power Source → ATC/ATO Inline Fuse Holder → Electrical Load
The holder provides the mounting and electrical connection for the blade fuse.
The installed ATC/ATO fuse provides the actual overcurrent protection. If current exceeds the safe level for sufficient time, the fuse element opens and interrupts the circuit.
This helps protect the connected cable and equipment from damage caused by excessive current or short-circuit conditions.
The holder is designed for standard ATC/ATO automotive blade fuses.
Common compatible fuse ratings can include:
The physical compatibility of a fuse does not automatically mean every fuse rating is suitable for every wire size.
Always match the fuse rating to:
Wire gauge
Circuit load
System voltage
Cable length
Equipment requirements
Do not increase the fuse rating without confirming that the protected cable can safely carry the current.
Wire gauge should be selected according to the expected circuit current, cable length and allowable voltage drop.
A thicker wire has a lower AWG number and can generally carry more current than a thinner wire.
For example, a 10 AWG configuration is suitable for higher-current applications than a 22 AWG configuration.
When selecting wire size, consider:
Continuous operating current
Maximum expected load
Cable length
Voltage drop
Fuse rating
Installation temperature
Equipment manufacturer's requirements
The fuse rating should never exceed the safe current capacity of the protected wire.
The ATC/ATO inline fuse holder can be used in a wide range of automotive and DC circuits, including:
Cars
Trucks
RVs
Motorcycles
Boats
Auxiliary lighting
USB chargers
Vehicle accessories
Small DC equipment
Battery-powered accessories
Aftermarket electronics
It is especially useful when a circuit requires its own replaceable fuse but does not use an existing vehicle fuse box position.
The protective cover helps shield the installed blade fuse and electrical connection from dust, splashes and accidental contact.
The insulated housing provides mechanical support and electrical isolation around the fuse and terminals.
For outdoor or marine installations, the holder should be installed in a location appropriate for the product's environmental protection level.
Unless a specific IP rating has been verified, the product should not be treated as suitable for continuous water immersion.
A typical installation process is:
Disconnect the power source.
Select the correct wire gauge.
Choose a suitable location close to the power source when required by the circuit design.
Cut the power cable at the desired fuse location.
Connect the inline fuse holder into the circuit.
Make sure all crimps or wire connections are secure.
Select the correct ATC/ATO fuse.
Insert the fuse fully into the holder.
Close the protective cover.
Restore power and test the circuit.
The fuse rating should be selected according to the protected cable and electrical load.
An inline fuse holder and a fuse tap both use automotive blade fuses, but they serve different purposes.
| Feature | Inline Fuse Holder | Fuse Tap |
|---|---|---|
| Installation | Installed directly in the wire | Inserted into an existing fuse box slot |
| Main Purpose | Protect a standalone circuit | Add an accessory circuit |
| Requires Fuse Box Slot | No | Yes |
| Wiring | Installed in series | Uses existing fuse box position |
| Fuse Type | ATC/ATO, depending on holder | Depends on fuse tap type |
| Typical Use | New or independent DC circuit | Aftermarket vehicle accessory |
Choose an inline fuse holder when a circuit needs independent protection outside the vehicle fuse box.
Choose a fuse tap when power needs to be taken from an existing fuse box position.
Use an inline fuse holder when you need independent overcurrent protection for a new circuit. Use a fuse tap when you need to add an accessory circuit through an existing vehicle fuse box.
The insulated housing protects the internal fuse and terminal structure and provides electrical isolation.
Tin-plated brass terminals provide reliable electrical connection between the wire and blade fuse.
Different wire gauges can be supplied according to application requirements.
Wire gauge, cable length and terminal configuration can be customized for OEM projects.
The cover helps reduce exposure to dust, splash and accidental contact during normal installation.
Autoido applies inspection during fuse holder production and assembly.
Typical inspection items include:
Housing dimensions
Wire length
Wire gauge
Terminal positioning
Crimp quality
Electrical continuity
Fuse insertion and retention
Protective cover fit
Product appearance
Packaging inspection
Additional inspection requirements can be defined for OEM and customized projects.
Autoido supports OEM and ODM services for automotive inline fuse holders.
Customization options can include:
Wire gauge
Wire length
Wire color
Terminal type
Stripping length
Housing configuration
Connector assembly
Customer logo
Product labeling
Private-label packaging
Retail packaging
Bulk packaging
Customers can provide drawings, samples or technical specifications for project evaluation.
Autoido specializes in automotive fuses, fuse holders, fuse taps and other circuit protection products.
Our capabilities include:
More than 20 years of fuse production and development experience
In-house R&D support
Product testing capability
OEM and ODM services
Wire and terminal customization
Mold development
Custom packaging
Bulk production
Technical support for B2B customers
Autoido supplies automotive circuit protection products for OEM, aftermarket, distributor and electrical accessory applications.
An inline fuse holder is a fuse mounting device installed directly in a power cable.
It holds a replaceable fuse that protects the connected wire and electrical load from excessive current.
This holder is designed for standard ATC/ATO automotive blade fuses.
It is designed for standard ATC/ATO-size blade fuses. Always confirm the physical dimensions and electrical specifications of the selected fuse before installation.
Common ATC/ATO fuse ratings include 5A, 7.5A, 10A, 15A, 20A, 25A, 30A and 40A.
The correct fuse rating depends on the wire gauge and circuit requirements.
Wire options from 10 to 22 AWG can be supplied according to the required configuration.
Select the wire gauge according to circuit current, cable length, voltage drop and fuse rating.
The fuse must not be rated higher than the safe current capacity of the protected wire.
The product uses a weatherproof protective cover to help protect the fuse from dust and splash.
If a specific waterproof or IP rating is required, it should be confirmed according to the selected product specification.
Yes. A 32V-rated fuse holder can generally be used in a 12V automotive system when the current, fuse and wire specifications are suitable for the circuit.
An inline fuse holder is installed directly in a wire to protect an independent circuit.
A fuse tap uses an existing vehicle fuse box position to add an accessory circuit.
It can be used in suitable marine DC applications when the environmental conditions, wire size, fuse rating and protection level meet the installation requirements.
The holder is wired in series between the power source and electrical load, with the correct blade fuse installed inside the holder.
Yes. Autoido supports customized wire gauge, cable length, terminal type and other wiring requirements.
Yes. Private-label, retail and bulk packaging options are available for OEM projects.
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