SKU: 56084003415

Exotronic 300A High-Interrupt MEGA-Style Ceramic Fuse w/ Holder

Sale price$20.33 Regular price$22.59
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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15

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Description

Exotronic 300A High-Interrupt MEGA-Style Ceramic Fuse w/ HolderExotronic High Interrupt MEGA Style Ceramic Fuse with Holder: Engineered for Critical Circuit Protection Advanced Ceramic Fuse Technology for High Current Applications The Exotronic 300A High Interrupt MEGA Style Ceramic Fuse with Holder provides a robust, ready to install solution for protecting high current electrical circuits in demanding environments. Designed to meet High Rupturing Capacity (HRC) standards, this fuse and holder combination

Exotronic High-Interrupt MEGA-Style Ceramic Fuse with Holder: Engineered for Critical Circuit Protection

Advanced Ceramic Fuse Technology for High-Current Applications

The Exotronic 300A High-Interrupt MEGA-Style Ceramic Fuse with Holder provides a robust, ready-to-install solution for protecting high-current electrical circuits in demanding environments. Designed to meet High Rupturing Capacity (HRC) standards, this fuse-and-holder combination ensures rapid, safe disconnection during overloads and short circuits, reducing the risk of equipment damage and system downtime. Unlike generic blade fuses or lower-rated alternatives, the ceramic body offers superior thermal stability and dielectric strength, making it suitable for applications where high fault currents are possible.

Each kit includes a purpose-built holder that secures the fuse with bolted terminals, minimising contact resistance and preventing loosening from vibration. The transparent blue cover allows visual inspection without disassembly, while the compact footprint (77.5 mm overall length with 56 mm mounting centres) fits easily into crowded electrical enclosures. Whether you are protecting a battery bank, inverter circuit, or industrial control panel, this fuse delivers consistent, predictable performance.

Why Ceramic Fuses Outperform Standard Options

Ceramic fuses are preferred in high-interrupt applications because they can withstand the intense thermal and mechanical stresses of a short circuit. The Exotronic MEGA-style fuse uses a ceramic tube filled with arc-quenching material, which extinguishes the arc quickly and safely. This design achieves a 10 kA interrupting rating at 250 V AC/DC, far exceeding typical automotive or glass fuses. For systems with large battery banks or high-power inverters, this capability is critical to prevent catastrophic failure.

Additionally, the time-current characteristics are optimised for both overload and short-circuit protection. At moderate overloads (e.g., 135% of rated current), the fuse will open within one hour, while at high fault currents (e.g., 400% of rated current), it clears in milliseconds. This dual response protects cables and equipment from overheating while avoiding nuisance blows during normal surges.

Key Features

  • High Interrupting Capacity: 10 kA at 250 V AC/DC safely clears severe faults
  • Ceramic Body: Excellent heat resistance and arc suppression for longevity
  • Bolt-Down Terminals: Secure, low-resistance connections that resist vibration
  • Included Holder: Transparent cover for visual inspection, with mounting holes for fixed installation
  • Wide Operating Range: Rated for 250 V AC/DC, suitable for 12V, 24V, and 48V systems
  • Compliance: Designed to meet requirements of UL and GB 13539 “aR” standards for predictable performance

Applications Where Reliability Matters

This fuse is ideal for any high-current DC or AC circuit where a fault could cause significant damage. Common uses include:

  • Battery bank main protection in off-grid solar systems
  • Inverter/charger input and output circuits in caravans and RVs
  • Marine electrical panels and trolling motor wiring
  • Industrial machinery and motor control centres
  • Mobile workshops and overland vehicles with auxiliary power

In each case, the Exotronic ceramic fuse acts as a critical safety barrier, isolating faults before they propagate. The included holder simplifies replacement and ensures the fuse is always correctly seated, reducing maintenance errors.

Installation and Maintenance Benefits

The fuse holder is designed for surface mounting with two screws (56 mm spacing), and the bolted terminals accept ring lugs for a professional finish. The transparent cover snaps securely but can be opened without tools for quick fuse changes. Because the fuse element is enclosed in ceramic, there is no risk of molten metal ejection during a fault, enhancing safety for nearby components and personnel.

For systems that experience frequent load cycling or high ambient temperatures, the ceramic construction maintains consistent resistance and blow characteristics over time, unlike plastic-bodied fuses that can degrade. This reliability reduces the need for periodic replacement and lowers total cost of ownership.

Protect Your Electrical Investment

Don't leave your high-current circuits vulnerable to inadequate protection. The Exotronic 300A High-Interrupt MEGA-Style Ceramic Fuse with Holder offers the interrupting capacity, thermal resilience, and ease of installation that professionals demand. Install with confidence and keep your power systems running safely.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 56084003415

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4.3 ★★★★★
Based on 8 reviews
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C
Verified Purchase
Cheryl
Alexandria, US
★★★★★ 5
Perfect Compact Size and Smooth Efficient Grind
I absolutely love these salt and pepper grinders! They are perfectly-sized, less cumbersome than most 12"+ sized grinders. They're wide enough to hold more than it looks like they hold, which means less refilling required. The grind is smooth and flawless - it usually only takes me one quick single-hand- motion to season my plate. I use pink Himalayan salt, and black peppercorns, and can adjust it easily to suit my or my husband's grind preferences. These grinders are pretty enough to set out on a table for dinner guests, while being quick and efficient for ourselves.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 16, 2025
R
Verified Purchase
RCC
Battle Creek, US
★★★★★ 5
Perfect Salt & Pepper Grinders
Size: 2.5" x 5.1"
Excellent design, size and function, plus they have CLEAR PLASTIC TOPS so you can easily see how much ground salt or pepper you have to sprinkle on your food. After using my first set I knew I needed another set for different combinations of pepper corns in particular. Oh, and they come with an extra set of ceramic grinding wheels (yes, ceramic, not plastic as a few reviewers falsely claim). Very smooth operation and adjustable from fine to coarse sizes. Here's my recommendation for use. First, use quality coarse salt and whole pepper corns. Second, don't grind with lid off over hot steaming food while cooking because the steam will negatively effects the salt and pepper in the grinders, the grind quality you get, and will ultimately clog the grinders. Just grind with lid on until you get the required amount (hence the need for the clear caps), open the caps and sprinkle. Easy peasy... ☺
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 15, 2023
J
Verified Purchase
janae23
Massapequa, US
★★★★★ 4
Nice grinder set
Size: 2.5" x 5.1"
These are a really pretty grinder set. They work well, but after a bit they don't grind as well, and the tops try to come off. They are also NOT dishwasher safe. They will literally melt, even on the top shelf.
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Reviewed in the United States on December 28, 2024
D
Verified Purchase
DB
San Leandro, US
★★★★★ 5
Perfect Size & Price
Size: 2.5" x 5.1", Size: 2.5" x 5.1"
Perfect size! Easy to hold and turn the grinder. Grinds both S & P well. Easy to fill and comes with a top to cover grinder when not in use. Perfect look and style for a table or to store for easy reach beside your stove. It also come with 2 extra replacement grinders if needed. An excellent product at a reasonable price! See pic for a size comparison next to a solo cup.
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Reviewed in the United States on March 2, 2025
L
Verified Purchase
Lyn
West Palm Beach, US
★★★★★ 5
These are great!
Size: 2.5" x 5.1"
I've had these for about a year year and a half and I really like them this morning the salt shaker broke, so I just ordered another set (they're not sold individually) to replace the one that broke. If you should happen to drop them on the floor the plastic top will crack!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 14, 2026

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