SKU: 35608612695

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

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Ships within 48 hours · Estimated delivery Aug 18 - Aug 23

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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]
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SKU: 35608612695

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JB
Lexington, US
★★★★★ 3
Lopsided, but works
Size: 20.0"L x 20.0"W x 6.0''TH, Style: Round, Pattern Name: Bed
It's soft and good cat size. The bottom stuffing is uneven, so it leans a lot, no matter how I rotate it for the cat to try to even it out. But the old cat loves it, especially since it's positioned in a perfect spot; a "corner" by a hallway, so it feels safe, while letting the cat see everything from that out of the way vantage point. I've been trying to get him to use beds again (had to throw some out b/c he gets seizures which can result in loss of bladder control). It only took a few days for him to "discover" the new bed, and start adding it to his nap rotations. and he looks so cute in it.
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Reviewed in the United States on January 3, 2023
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Tierra Clark
Lowell, US
★★★★★ 5
Great for all dogs
Size: 20.0"L x 20.0"W x 6.0''TH, Style: Round, Pattern Name: Bed
Durable and easy to vacuum and wash. Keeps its form well my smaller dog AND LARGE DOG find it comfortable
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Reviewed in the United States on March 31, 2026
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Elbert Smith
Phoenix, US
★★★★★ 5
Awesome football
Color: Ohio State Buckeyes
Awesome State awesome football!
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Reviewed in the United States on March 24, 2026
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Halo
Port Orchard, US
★★★★★ 5
heavy duty quality
Color: Georgia Bulldogs
Bought for friends. They have a dog that will gnaw and chew on anything. This was very durable and lasted with constant chewing and playing.
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Reviewed in the United States on August 6, 2025
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Michael
Massapequa, US
★★★★★ 4
Heavy
Color: Texas Longhorns
It’s a tough and heavy toy. Probably best for dogs over 10 lbs.
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Reviewed in the United States on April 21, 2026

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