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The Autoido MICRO3 fuse tap is a 32V automotive add-a-circuit adapter designed for vehicle fuse boxes using MICRO3 blade fuses. It allows an additional fused accessory circuit to be added through an existing fuse position without cutting the original vehicle wiring.
The fuse tap provides two fuse positions: one for the original vehicle circuit and one for the added accessory circuit. The product features a nylon housing, Tin-plated brass terminals and a standard cable length of approximately 150 mm.
Autoido supports bulk supply, OEM/ODM customization, customized wire specifications, terminal configurations and private-label packaging.
Designed for MICRO3 blade fuse boxes
Adds an extra fused circuit without cutting factory wiring
Dual fuse positions for original and accessory circuits
32V DC automotive application
Durable nylon housing
Reliable metal terminals
Automotive wire options available
Suitable for aftermarket electrical accessories
Wire, terminal and packaging customization available
OEM/ODM and bulk supply supported
| Specification | Details |
|---|---|
| Product Type | MICRO3 Fuse Tap / Add-a-Circuit |
| Compatible Fuse | MICRO3 Blade Fuse |
| Rated Voltage | 32V DC |
| Rated Current | According to product specification |
| Fuse Positions | 2 |
| Housing Material | Nylon |
| Terminal Material | Tin-Plated Brass |
| Standard Wire | According to configuration |
| Optional Wire Gauge | 16 AWG |
| Cable Length | Approx. 150 mm, according to configuration |
| Application | Automotive accessory circuits |
| OEM / ODM | Available |
Final current rating and wire specification should be selected according to the required configuration.
A MICRO3 fuse tap is an add-a-circuit adapter designed to add a separately fused accessory circuit to a vehicle fuse box that uses MICRO3 blade fuses. It provides two fuse positions: the original fuse continues to protect the vehicle's existing circuit, while a second fuse protects the added accessory circuit.
A MICRO3 fuse tap is commonly used for low-current automotive accessories such as dash cameras, GPS trackers, USB chargers, LED lighting and vehicle monitoring equipment.
A MICRO3 fuse tap allows two separately fused circuits to use one existing fuse box position.
The original fuse continues to protect the vehicle's existing circuit. A second fuse protects the newly added accessory circuit.
The wire lead from the fuse tap supplies power to the added device.
Typical circuit layout:
Fuse Box → MICRO3 Fuse Tap → Original Circuit + Accessory Circuit
The accessory fuse should be selected according to the electrical load and wire capacity of the new circuit.
This fuse tap is designed specifically for MICRO3 blade fuses.
Before installation, confirm:
Fuse type
Fuse dimensions
Rated current
Rated voltage
Original circuit requirement
Accessory load
MICRO3, MICRO2, MINI and Low Profile MINI fuses use different physical formats and should not be treated as interchangeable.
Do not select a fuse only by color. Always confirm the current rating marked on the fuse.
Yes. Fuse tap orientation can affect how current flows through the original and accessory circuits.
A vehicle fuse slot normally has a power-supply side and a load side. The powered side should be identified before installation so the fuse tap can be installed according to the intended circuit design.
Do not choose the installation direction only based on which way the fuse tap is easier to insert.
Always follow the vehicle and accessory manufacturer's electrical requirements.
How to Choose the Correct Fuse Tap Size?
The correct fuse tap should match the physical fuse type installed in the vehicle fuse box. MICRO3, MICRO2, MINI, Low Profile MINI and ATO/ATC fuse taps are designed for different fuse formats and are not interchangeable simply because they have the same current rating.
Before selecting a fuse tap, verify the fuse type, physical dimensions, terminal configuration, voltage rating and the vehicle fuse-box requirements.
The MICRO3 fuse tap is suitable for adding low-current automotive accessories such as:
Dash cameras
GPS trackers
USB chargers
LED lighting
Vehicle monitoring devices
Interior accessories
Fleet tracking equipment
Aftermarket electronics
The selected fuse and wire must match the accessory current requirement.
MICRO3 and MICRO2 fuse taps perform the same basic add-a-circuit function but are designed for different fuse formats.
| Feature | MICRO3 Fuse Tap | MICRO2 Fuse Tap |
|---|---|---|
| Compatible Fuse | MICRO3 | MICRO2 |
| Fuse Structure | 3-terminal format | 2-terminal format |
| Application | MICRO3 fuse boxes | MICRO2 fuse boxes |
| Interchangeable | No | No |
Always match the fuse tap to the fuse type used in the vehicle fuse box.
MICRO3 and MINI fuse taps differ mainly in fuse size and terminal configuration.
| Feature | MICRO3 Fuse Tap | MINI Fuse Tap |
|---|---|---|
| Compatible Fuse | MICRO3 | MINI |
| Size | Compact | Larger |
| Fuse Box Type | MICRO3 positions | MINI positions |
| Interchangeable | No | No |
The correct fuse tap should be selected according to the physical fuse format, not only the current rating.
The nylon housing provides insulation and mechanical support for the fuse and terminal structure.
Tin-plated brass terminals provide stable electrical contact between the fuse box, fuse and accessory circuit.
Different wire gauges and cable lengths can be supplied according to customer requirements.
Reliable terminal locking and correct crimping are important for stable electrical performance.
A typical installation process is:
Turn off the vehicle and disconnect power when required.
Identify a suitable MICRO3 fuse position.
Remove the original fuse.
Install the original fuse into the corresponding fuse tap position.
Select the correct accessory fuse.
Install the accessory fuse into the second position.
Identify the powered side of the fuse slot.
Insert the fuse tap in the correct orientation.
Connect the wire lead to the accessory circuit.
Confirm the ground connection.
Restore power and test the circuit.
Do not increase the original fuse rating simply to support an added accessory.
Autoido applies inspection throughout fuse tap production.
Typical inspection items include:
Housing dimensions
Terminal positioning
Terminal retention
Wire length
Crimp quality
Electrical continuity
Fuse insertion and retention
Product assembly
Packaging inspection
Customized inspection requirements can also be applied for OEM projects.
Autoido supports OEM and ODM services for MICRO3 fuse taps.
Customization options can include:
Wire gauge
Wire length
Wire color
Output terminal
Stripping length
Product labeling
Customer logo
Private-label packaging
Retail packaging
Bulk packaging
Customers can provide drawings, samples or technical requirements for evaluation.
Autoido specializes in automotive fuses, fuse taps, fuse holders and other circuit protection products.
Our capabilities include:
More than 20 years of fuse production and development experience
In-house R&D capability
Product testing capability
OEM and ODM support
Mold development
Wire and terminal customization
Custom packaging
Bulk production
Technical support for B2B customers
Autoido supplies automotive circuit protection products for OEM, aftermarket, distributor and electrical accessory applications.
A MICRO3 fuse tap is an add-a-circuit adapter designed to create an additional fused circuit from an existing MICRO3 fuse box position.
It is used to add accessories such as dash cameras, GPS trackers, USB chargers and LED lighting without cutting the original vehicle wiring.
This product is designed for MICRO3 blade fuses.
No. MICRO3 and MICRO2 fuses use different terminal structures and require different fuse taps.
No. They are designed for different fuse sizes and fuse box configurations.
A 32V-rated fuse tap can generally be used in a 12V automotive system when all other electrical specifications and application requirements are satisfied.
Yes. The power-supply side of the fuse slot should be identified before installation so the fuse tap can be oriented correctly.
Choose the fuse according to the accessory current, wire capacity and circuit requirements.
Do not simply copy the rating of the original vehicle fuse.
Different wire gauges can be supplied according to the product configuration and customer requirements.
Yes. Wire gauge, cable length, terminal type and other specifications can be customized for OEM projects.
Yes. Autoido supports private-label, retail and bulk packaging for MICRO3 fuse tap orders.
Can a MICRO3 fuse tap be used with a MICRO2 fuse?
No. MICRO3 and MICRO2 use different fuse formats and terminal configurations. A MICRO3 fuse tap should be used with compatible MICRO3 blade fuses and a compatible vehicle fuse-box position.
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