80A AMI / MIDI High-Current Bolt-Down Fuse
Reliable 80 Amp Circuit Protection for DC-DC Chargers & Power Sub-Panels
Engineered to safeguard auxiliary DC circuits from short circuits and severe overcurrent events, the 80A AMI / MIDI Bolt-Down Fuse provides heavy-duty protection in a compact footprint. Sized for 40A–50A DC-DC battery chargers, 500W–600W pure sine wave inverters, high-draw anchor windlasses, and secondary distribution blocks, this 80 Amp fuse ensures stable, continuous power delivery while preventing false trips.
Constructed with tin-plated copper alloy contacts, it guarantees minimal voltage drop and long-term resistance to oxidation. The M5 bolt-down design provides a firm, vibration-proof electrical connection that resists loosening, arcing, and heat buildup under demanding 4WD, marine, and caravan operating conditions.
Key Features
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80 Amp Continuous Protection: Ideal rating for protecting 40A/50A DC-DC battery chargers, 500W–600W inverters, and heavy auxiliary sub-lines.
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Slow-Blow Time-Delay Element: Built to handle temporary startup surges (inrush current) without nuisance blowing when initiating inductive loads.
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Vibration-Proof M5 Bolt-Down Mounting: Secures tightly onto M5 studs to eliminate loose contacts caused by rough off-road terrain or engine vibration.
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Tin-Plated Copper Blades: Delivers maximum electrical conductivity while resisting corrosion in humid engine bays and marine compartments.
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Clear Amperage Markings: Stamped 80A rating and transparent housing window allow for instant visual verification during maintenance.
Technical Specifications
| Specification |
Details |
| Product Type |
AMI / MIDI Bolt-Down Fuse |
| Amperage Rating |
80 Amp (80A) |
| Voltage Rating |
Up to 32V DC (Supports 12V / 24V systems) |
| Interrupt Rating |
5,000A @ 16V DC / 2,000A @ 32V DC |
| Mounting Style |
M5 Stud / Bolt-Down (~30mm hole spacing) |
| Terminal Material |
Tin-Plated Copper Alloy |
| Body Material |
High-Temperature Thermoplastic |
| Operating Temp |
-40°C to +125°C |
Applications
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40A and 50A DC-DC battery chargers and solar controllers
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500W to 600W pure sine wave power inverters
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Auxiliary 12V/24V power distribution sub-panels and fuse blocks
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4WD touring setups, caravans, camper trailers, and marine power systems
We appreciate your business and are committed to providing exceptional service and timely delivery. Please review the shipping information below before placing your order.
Is It In Stock?
Over 98% of the products listed on our website are in stock.
If a part is not currently in stock, we will notify you as soon as we process your order. We process all orders on the same business day they are received.
If you would like to confirm availability before placing your order, please contact us.
Packaging
Rest assured that all items will be securely packaged to minimise the risk of damage during transit. Fragile or high-value parts may be packaged with additional protective materials such as bubble wrap, foam padding, or reinforced cartons.
Where Do You Ship From?
All parts are stocked and shipped from our location at The Boat Works Marina on the Gold Coast, Australia.
Shipping Rates
Shipping rates vary based on the size, weight, and destination of the package. Estimated shipping costs are displayed during checkout before your order is placed.
Free Shipping – Australia
We offer Free Shipping on parts orders over $55 within Australia.
If you select Free Freight, your order will generally be sent using Australia Post Standard or another standard delivery service.
Australia Post standard delivery is typically 4–10 business days within Australia.
If delivery time is important, we recommend selecting one of our paid express freight services.
Please note:
- Certain items do not qualify for Free Freight. Please refer to the product description for details.
- Dangerous goods, oils, lubricants, DeFOUL, Propspeed products, batteries, and certain oversized items may be excluded from Free Freight and may require road freight services.
Order Tracking
Once your order has been dispatched, you will receive an email containing your tracking number and carrier information.
Who Do You Ship With?
We ship using:
- Australia Post
- StarTrack
- Team Global Express
- UPS
- DHL Express
- FedEx
- TNT
- Couriers Please
- Freight forwarding and brokerage services such as Transdirect
We have extensive experience shipping throughout Australia and worldwide. We will select the carrier we believe is most suitable for your location and the type of goods being shipped.
If you would prefer to use your own carrier account or would like to discuss shipping options, please contact us.
International Orders
We ship worldwide.
International orders may be subject to import duties, taxes, VAT/GST, customs clearance fees, brokerage charges, and other fees imposed by the destination country.
These charges are not included in the product price or shipping cost displayed at checkout and are the responsibility of the recipient.
Customs regulations vary by country. In some cases, customs authorities may require additional information such as a passport number, national identification number, tax identification number, or business registration number before a shipment can be cleared for delivery.
If you are unsure what charges may apply in your country, we recommend contacting your local customs office before placing an order.
