MIDI Fuse 20A–200A – Automotive Battery, DC-DC & Inverter Fuse

Razorback DC MIDI Fuse 20A–200A – Automotive Battery, DC-DC & Inverter Fuse

Protect high-current 12V and 24V electrical circuits with Razorback DC MIDI Fuses, available in multiple amperage ratings from 20A through to 200A.

MIDI fuses use a compact bolt-down design that provides secure circuit protection without taking up the space required by many larger high-current fuse formats.

Ideal for 4WDs, caravans, ute canopies, lithium battery systems, DC-DC chargers, inverters, Anderson power circuits and auxiliary battery installations, the Razorback DC MIDI Fuse range makes it easy to select the correct fuse for a wide variety of DC electrical systems.

Simply choose the required amperage and quantity to suit your installation.

⭐ Key Benefits

• MIDI / AMI-style bolt-down fuse
• Available from 20A to 200A
• Designed for high-current DC circuit protection
• Compact bolt-down format
• Secure terminal connection
• Suitable for 12V and 24V electrical systems
• Ideal for lithium battery installations
• Excellent for AGM battery systems
• Perfect for DC-DC charger circuits
• Great for inverter installations
• Ideal for Anderson plug circuits
• Suitable for 4WD and ute canopy wiring
• Excellent for caravans and camper trailers
• Compatible with suitable MIDI fuse holders
• Multiple amperage options available

⚡ Available from 20A to 200A

The Razorback DC MIDI fuse range covers a broad selection of current ratings between:

20A and 200A

This allows the fuse rating to be matched to the cable, connected equipment and electrical system.

Different fuse ratings are useful for circuits such as:

• DC-DC chargers
• Auxiliary batteries
• Inverters
• Anderson connectors
• Solar charging equipment
• Compressors
• Battery chargers
• Fuse-box feeds
• Main accessory circuits
• Auxiliary power systems

Always select the fuse according to the actual circuit requirements rather than simply choosing the largest available rating.

🛡️ Protect Your Wiring from Excessive Current

A fuse is primarily designed to protect the electrical cable and circuit from excessive current.

If a positive cable becomes shorted to earth or a circuit develops a serious overload, a battery can supply extremely high fault current.

Correct fuse protection can help reduce the risk of:

• Cable overheating
• Melted insulation
• Electrical equipment damage
• Wiring harness damage
• Serious electrical faults

For this reason, suitable fuse protection should be installed close to the battery or power source where practical.

🔩 Compact Bolt-Down MIDI Design

Unlike plug-in blade fuses, MIDI fuses use a bolt-down connection.

The fuse is secured between two terminals in a compatible MIDI fuse holder.

Benefits of the bolt-down format include:

• Secure electrical connection
• Compact installation
• Easy fuse replacement
• Suitable for higher-current circuits
• Excellent integration into battery distribution systems

This makes MIDI fuses particularly useful in modern automotive and auxiliary battery installations.

🔋 Ideal for Lithium Battery Systems

Modern LiFePO4 batteries can supply very high fault currents.

Therefore, correctly selected fuse protection is an important part of a lithium battery installation.

MIDI fuses can be used to protect appropriately sized circuits including:

• DC-DC chargers
• Auxiliary power feeds
• Fuse boxes
• Smaller inverter circuits
• Battery chargers
• Anderson power outlets
• Accessory distribution

The correct fuse rating must always be selected according to the cable and connected equipment.

⚡ Perfect for DC-DC Chargers

MIDI fuses are widely used with DC-DC charger installations because their compact size makes them easy to position close to batteries and charging equipment.

A typical circuit may look like:

Starting Battery → MIDI Fuse → DC-DC Charger

and

DC-DC Charger → MIDI Fuse → Auxiliary Battery

The exact fuse rating should follow:

• Charger manufacturer requirements
• Cable capacity
• Installation conditions

For example, a 40A charger does not automatically mean that every installation should use exactly a 40A fuse.

Always follow the charger manufacturer's recommendations.

🔌 Excellent for Anderson Power Circuits

MIDI fuses can also be used to protect wiring feeding Anderson-style connectors.

Suitable applications may include:

• 50A Anderson circuits
• 120A Anderson circuits
• Battery-box feeds
• Canopy power
• Charging circuits
• Auxiliary power connections

The fuse should be selected according to the cable capacity and maximum expected circuit current, not merely the rating printed on the connector housing.

🔋 Auxiliary & Dual-Battery Systems

MIDI fuses are ideal for protecting individual circuits throughout a dual-battery installation.

Typical applications include:

• Auxiliary battery feeds
• DC-DC chargers
• Solar controllers
• Fuse-box supplies
• Fridges
• Compressors
• Pumps
• Auxiliary accessories

Using individual fuse protection allows different circuits to be protected according to their own cable size and load.

🚙 4WD & Ute Canopy Wiring

The Razorback MIDI Fuse range is ideal for professional 4WD electrical systems.

Common applications include:

• Dual-battery systems
• Lithium batteries
• Ute canopy electrical systems
• DC-DC chargers
• Anderson connectors
• Compressors
• Fridges
• Pumps
• Lighting systems
• Auxiliary fuse boxes

Their compact size makes MIDI fuses especially useful where engine-bay or canopy mounting space is limited.

🏕️ Caravan & Camper Applications

Caravan and camper electrical systems can contain numerous moderate-to-high-current circuits.

MIDI fuses are suitable for properly designed circuits involving:

• Battery charging
• DC-DC chargers
• Solar equipment
• Battery banks
• Inverters
• Pumps
• Fridges
• Auxiliary power systems

They are particularly useful where compact high-current protection is required.

🔌 Compatible with MIDI Fuse Holders

Razorback DC MIDI fuses are designed for use with compatible MIDI / AMI fuse holders and distribution systems.

They pair perfectly with products such as:

• Single MIDI fuse holders
• Modular MIDI fuse holders
• LMI modular fuse systems
• Multi-way MIDI fuse boxes
• Battery distribution systems
• Battery hold-down brackets with integrated MIDI holders

Using the correct holder helps keep the fuse secure while providing reliable electrical connections.

🔥 Correct Fuse Selection

Choosing the correct fuse rating is critical.

A fuse should generally be selected so that it protects the cable while still allowing normal equipment operation.

Consider:

• Cable conductor size
• Maximum equipment current
• Cable length
• Installation temperature
• Cable bundling
• Equipment manufacturer requirements
• Expected operating current

The fuse should never be rated higher than the safe current capacity of the cable it is intended to protect.

⚠️ Fuse Rating vs Equipment Rating

The fuse rating does not always need to match the equipment's normal operating current exactly.

For example, electrical equipment may have:

• Startup current
• Surge current
• Normal operating current
• Manufacturer-specified fuse requirements

Therefore, always check the connected equipment manufacturer's specifications when selecting the appropriate MIDI fuse.

🔧 Installation

A typical MIDI fuse installation looks like:

Battery Positive → MIDI Fuse Holder → Protected Equipment

For the best circuit protection, the fuse holder should generally be positioned as close to the battery or power source as practical.

This helps minimise the amount of unfused positive cable.

When installing:

1. Disconnect battery power.
2. Select the correct MIDI fuse rating.
3. Use a compatible MIDI fuse holder.
4. Ensure terminals are clean and secure.
5. Tighten connections correctly.
6. Protect exposed positive terminals.
7. Reconnect the battery and test the circuit.

Avoid overtightening the fuse terminals.

🔄 Easy Fuse Replacement

If a fuse operates due to an electrical fault, do not simply replace it with a larger fuse.

Instead:

1. Identify the cause of the fuse failure.
2. Check the wiring for damage.
3. Inspect the connected equipment.
4. Confirm the original fuse rating was correct.
5. Replace it with the same correctly specified rating.

Installing a higher-rated fuse without determining why the original fuse failed may leave the cable inadequately protected.

🔍 Product Features

• Razorback DC MIDI fuse
• MIDI / AMI-style bolt-down design
• 20A–200A range
• High-current DC circuit protection
• Compact construction
• Secure bolt-down connection
• Replaceable fuse design
• Suitable for 12V / 24V electrical systems
• Ideal for lithium battery systems
• Great for AGM battery systems
• Perfect for DC-DC chargers
• Suitable for Anderson power circuits
• Excellent for 4WD and canopy wiring
• Great for caravans and campers
• Compatible with suitable MIDI fuse holders

• 📦 What's Included

  Razorback DC MIDI Fuse(s) in your selected amperage and quantity

  Select the required:

  Fuse Rating

  and

  Pack Quantity

  from the available options.

  ⚠️ Important Fuse Selection Note

  Always select the MIDI fuse according to:

  • Cable capacity
  • Connected equipment
  • Manufacturer recommendations
  • Maximum expected current
  • Installation conditions

  The largest available fuse is not automatically suitable for every circuit.