Blue Sea Systems MRBF terminal fuse 80A with clear window showing blown fuse status
Blue Sea Systems MRBF terminal fuse 80A with clear window showing blown fuse status

Blue Sea Systems MRBF Terminal Fuse 80A – 10,000 AIC, 14V DC, Ignition Protected

Marine DC protection with clear visibility and robust protection The Blue Sea Systems MRBF Terminal Fuse 80A...
Vendor: Blue Sea Systems
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Blue Sea Systems MRBF terminal fuse 80A with clear window showing blown fuse status

Blue Sea Systems MRBF Terminal Fuse 80A – 10,000 AIC, 14V DC, Ignition Protected

£34.55
Blue Sea Systems MRBF terminal fuse 80A with clear window showing blown fuse status

Blue Sea Systems MRBF Terminal Fuse 80A – 10,000 AIC, 14V DC, Ignition Protected

£34.55
Description
Description
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Marine DC protection with clear visibility and robust protection

The Blue Sea Systems MRBF Terminal Fuse 80A is designed to safeguard large battery bank circuits aboard boats. With a high interrupt rating and a 14-volt DC rating, this fuse helps protect essential electrical systems from overcurrent events while fitting into compact, organized power bays.

Key performance and safety features make it a practical choice for sailors and anglers who value reliability and straightforward maintenance. The unit is ignition protected, a design consideration for installations on gasoline-powered vessels, and it offers a visible blown-condition indicator through a clear viewing window. The product line uses color coding by amperage to help crew quickly identify the correct rating during inspections or after a surge.

Key benefits at a glance

  • Compatibility with Terminal Fuse Blocks PN 5191 or PN 2151; do not mount the fuse directly to the battery terminal.
  • Interrupt rating aligns with ABYC requirements for DC main circuit protection on large battery banks.
  • Ignition protected construction suitable for installation aboard gasoline-powered boats.
  • Clear window provides an immediate visual cue when replacement is needed.
  • Color coded by amperage to simplify identification and servicing.

Real-world use cases

In vessels with expansive battery banks, this fuse helps protect critical circuits such as navigation electronics, communication gear, and house loads. Its high AIC rating supports transient surges typical of engine starts or auxiliary systems, while the verification window enables quick checks during routine maintenance or post-event inspections.

  • Guarding significant DC circuits in sailboats and motorboats with substantial battery banks.
  • Protecting engine-room electrical feeds where easy status checks matter in adverse conditions.
  • Supporting organized, code-compliant power distributions with clear amperage labeling.

Installation notes

For proper operation, install using the specified Terminal Fuse Blocks PN 5191 or PN 2151. Avoid mounting the fuse directly to a battery terminal to maintain accessibility and reduce vibration-related wear. Ensure the amperage rating matches the protected circuit and verify the clear window status during routine checks.

Overall, the MRBF Terminal Fuse 80A combines robust electrical protection with practical visibility and mounting considerations, helping boaters maintain safe and orderly power systems without compromising on space or ease of use.

FAQ

Q: What is the Blue Sea Systems MRBF Terminal Fuse 80A used for?

A: Designed for DC main circuit protection on large boat battery banks; must be used with compatible fuse blocks PN 5191 or PN 2151.

Q: How can I tell when the fuse is blown?

A: A clear window provides a visual blown condition indicator, with color coding for amperage to aid quick checks.

Shipping & Return
Shipping & Return
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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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