Standard ATO ATC Fuse Tap 12V 24V Add-a-Circuit

• Designed for standard ATC/ATO blade fuse boxes

• Adds an additional fused circuit without cutting factory wiring

• Dual fuse positions for original and accessory circuits

• Suitable for 12V and other compatible automotive systems within the fuse tap's rated voltage

• 32V DC rated design

• Durable nylon housing

• Reliable metal terminals for stable electrical contact

• Automotive-grade wire options

• Easy connection for aftermarket vehicle accessories

• Custom wire length, terminal and packaging options available

• Suitable for OEM, distributor and aftermarket applications

• Bulk supply available from Autoido

The exact current rating, wire gauge, cable length and terminal configuration should be selected according to the specific AD102 configuration and customer requirements.

An ATC/ATO fuse tap, also called an add-a-circuit adapter, 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 is installed in the additional fuse position to protect the newly added accessory circuit.

The wire lead from the fuse tap supplies power to the added electrical device.

In a typical installation:

Fuse Box Slot → ATC/ATO Fuse Tap → Original Circuit + New Accessory Circuit

This design allows a new circuit to be added without cutting the original fuse box wiring.

The original fuse rating should normally remain consistent with the vehicle manufacturer's specification. The accessory fuse should be selected according to the electrical load, wire capacity and equipment requirements of the new circuit.

Installation should be performed only after confirming the fuse type, voltage, circuit load and power-supply side of the fuse box position.

A typical installation process is:

1. Turn off the vehicle and disconnect power when required.

2. Identify a suitable fuse box circuit for the accessory.

3. Confirm that the fuse position uses a standard ATC/ATO blade fuse.

4. Remove the original fuse from the fuse box.

5. Install the original fuse into the designated original-circuit position of the fuse tap.

6. Select the correct fuse rating for the new accessory circuit.

7. Install the accessory fuse into the second fuse position.

8. Identify the powered side of the original fuse slot.

9. Insert the fuse tap in the correct orientation.

10. Connect the fuse tap wire to the accessory circuit.

11. Make sure the accessory has a proper ground connection.

12. Restore power and verify correct operation.

The exact installation procedure should follow the vehicle, fuse box and accessory manufacturer's instructions.

Never increase the original fuse rating simply to support an additional accessory load.

How Does an Add-a-Circuit Fuse Tap Protect Two Circuits?

An add-a-circuit fuse tap provides two separate fuse positions. The original fuse protects the vehicle's existing circuit, while a second fuse protects the newly added accessory circuit. This allows an additional circuit to be connected through a compatible fuse box without cutting the original wiring.

The installation direction of an add-a-circuit fuse tap can affect how current flows through the two fuse positions.

A vehicle fuse slot normally has a powered side and a load side. The fuse tap should be oriented according to the electrical design so that both the original circuit and the added accessory circuit receive the intended fuse protection.

Before installation, identify which side of the fuse slot is powered. This can normally be checked using an appropriate electrical tester after following vehicle safety procedures.

Installing a fuse tap without identifying the power-supply side may result in an unintended current path or incorrect fuse protection.

For this reason, fuse tap orientation should not be determined only by which direction is physically easier to insert.

Always follow the vehicle manufacturer's electrical specifications and the installation requirements of the accessory being connected.

The AD102 is designed for standard ATC/ATO automotive blade fuses.

ATC and ATO fuses share the same standard blade-fuse form factor and are widely used in automotive electrical systems. They are available in multiple current ratings for different circuit protection requirements.

When selecting a fuse for the AD102, always check:

• Fuse physical size

• Rated current

• Rated voltage

• Original vehicle circuit requirement

• Accessory current consumption

• Wire current capacity

• Fuse box specifications

Do not select a fuse based only on color.

Fuse color normally helps identify the current rating, but the fuse rating should always be confirmed from its marking and specification.

The AD102 should not be used with MINI, Low Profile MINI, MICRO2 or MICRO3 fuses unless the product has been specifically designed for those fuse formats.

The AD102 ATC/ATO fuse tap is commonly used when adding aftermarket electrical accessories to vehicles without permanently modifying the original wiring harness.

Typical applications include:

• Dash cameras

• GPS trackers

• USB charging ports

• LED lighting

• Vehicle monitoring systems

• Driving recorders

• Small automotive electronic accessories

• RV electrical accessories

• Truck electrical equipment

• Fleet monitoring devices

• Aftermarket vehicle electronics

• Auxiliary low-voltage equipment

The actual suitability of a fuse tap depends on the accessory current, fuse rating, wire capacity and vehicle electrical system.

ATC, MINI and MICRO2 fuse taps perform a similar function, but they are designed for different blade fuse sizes and fuse box configurations.

These fuse tap types are not automatically interchangeable.

Before ordering or installing a fuse tap, check the fuse currently installed in the vehicle and match the fuse tap to the same physical fuse format.

If the vehicle uses an ATC/ATO blade fuse, an ATC/ATO fuse tap such as the AD102 should be selected.

The AD102 is designed for reliable automotive electrical connection and repeated installation under normal vehicle operating conditions.

Nylon Housing

The fuse tap uses a durable nylon housing to provide electrical insulation and mechanical protection around the fuse and terminal structure.

Metal Terminals

Reliable metal terminals provide electrical contact between the fuse box, blade fuse and accessory circuit.

Stable terminal positioning is important because loose or poorly aligned terminals may increase contact resistance and affect electrical performance.

Automotive Wire

The AD102 can be supplied with automotive-grade wire according to customer requirements.

Different wire gauges and cable lengths can be configured depending on the accessory load and application.

Output Terminal Options

Different output connection styles can be supplied depending on customer requirements, making the AD102 suitable for OEM, aftermarket and wiring-harness applications.

Reliable fuse tap performance depends not only on the fuse itself but also on terminal contact, wire connection, housing accuracy and assembly consistency.

Autoido applies quality control throughout the production process for automotive fuse tap products.

Key inspection points can include:

• Housing appearance and dimensions

• Terminal positioning

• Terminal retention

• Wire connection quality

• Wire length

• Crimping consistency

• Electrical continuity

• Fuse insertion and retention

• Product assembly

• Packaging inspection

For customized orders, inspection requirements can also be defined according to the customer's drawing, packaging standard or project specification.

Consistent terminal fit and stable electrical contact are especially important for automotive add-a-circuit applications.

Autoido supports OEM and ODM services for automotive fuse taps and related circuit protection products.

Customization options can include:

• Wire gauge

• Wire length

• Wire color

• Output terminal

• Stripping length

• Housing configuration

• Private-label packaging

• Barcode labels

• Retail packaging

• Bulk packaging

• Customer logo

• Product labeling

• Customized carton requirements

For automotive distributors, aftermarket brands and electrical accessory manufacturers, Autoido can supply fuse taps according to project specifications and order quantities.

Customers with customized requirements can provide drawings, samples or technical specifications for evaluation.

Autoido specializes in automotive circuit protection products, including automotive blade fuses, fuse taps, fuse holders, fuse blocks and high-current fuses.

Choosing a direct automotive fuse manufacturer can help B2B buyers maintain more consistent product specifications, packaging requirements and long-term supply.

Autoido provides:

• More than 20 years of automotive fuse manufacturing and development experience

• In-house R&D capability

• In-house product testing capability

• Automotive fuse and fuse holder product development

• OEM and ODM support

• Mold development capability

• Wire and terminal customization

• Custom packaging support

• Bulk production

• Technical product support

• Stable supply for distributors and automotive electrical customers

Autoido supplies automotive circuit protection products for OEM, aftermarket, distributor, wholesaler and electrical accessory applications.

What is an automotive fuse tap?

An automotive fuse tap, also called an add-a-circuit adapter, is a device that allows an additional protected electrical circuit to be connected through an existing fuse box position.

What is an ATO/ATC fuse tap used for?

An ATO/ATC fuse tap is used to add an accessory or secondary circuit to a vehicle that uses compatible ATO/ATC blade fuses. It provides separate fuse protection for the original and newly added circuits.

How does a fuse tap work?

A fuse tap uses an existing fuse box position to provide power for an additional circuit. One fuse protects the original vehicle circuit, while a second fuse protects the added accessory circuit.

Can a fuse tap be used without cutting the original wire?

Yes. A compatible fuse tap can add an electrical connection through the fuse box without cutting the vehicle's original wiring. The fuse tap must match the fuse type and electrical specifications of the vehicle.

What fuse types are available for fuse taps?

Autoido supplies fuse tap options for ATO/ATC, Mini, Micro, and MICRO2 blade fuses. The correct type depends on the fuse format used in the vehicle's fuse box.

What are the specifications of the AD102 fuse tap?

The AD102 features a nylon housing, nickel-plated brass terminals, a standard 150mm wire lead, and a 32V DC rated voltage. The rated current and compatible wire gauge should be confirmed according to the selected configuration.

What wire gauge is available for the AD102 fuse tap?

The AD102 is available with UL1015/1007 wire options. Wire gauge and cable specifications can be customized according to the application and production requirements.

Can Autoido customize fuse taps?

Yes. Autoido supports OEM/ODM fuse tap production, including customized wire length, stripping length, terminal configuration, packaging, and bulk orders.