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Blue Sea Systems 5112 Class T Fuse 110 Amp Fast-Acting Marine DC Fuse

Manufacturer

Blue Sea Systems

<p>When electrical reliability can mean the difference between a successful voyage and a dangerous situation, marine professionals and enthusiasts turn to Blue Sea Systems. Founded in 1992, this American manufacturer has built a reputation for creating electrical components specifically engineered to withstand the unforgiving marine environment. Every product reflects a commitment to safety standards and real-world performance that has made Blue Sea Systems a leading name in marine and specialty vehicle electrical systems.</p> <h3>Engineering for the Marine Environment</h3> <p>Blue Sea Systems develops and manufactures dependable AC and DC electrical products for marine and specialized vehicle applications, designed in the USA and engineered to excel in challenging environments. The marine environment presents unique challenges—salt spray, constant vibration, temperature extremes, and moisture exposure—that can quickly degrade inferior electrical components. Blue Sea Systems addresses these challenges through careful material selection, rigorous testing protocols, and designs that prioritize both safety and serviceability. Their components are engineered for marine use and align with the intent of ABYC E-11: AC and DC Electrical Systems on Boats and relevant USCG electrical regulations.</p> <h3>Commitment to Safety Standards</h3> <p>Safety standards aren't just guidelines for Blue Sea Systems—they're fundamental to every product design. All Blue Sea Systems marine battery disconnect switches comply with the ABYC C-7 certification, demonstrating their commitment to meeting and exceeding industry safety requirements. The company maintains ABYC-certified employees across multiple departments, from engineering to technical support, ensuring deep expertise in marine electrical system design and installation standards.</p> <h3>Comprehensive Product Range</h3> <p>Blue Sea Systems offers an extensive catalog designed to address every aspect of marine electrical systems. Their <a href="/7262-blue-sea-systems-circuit-breakers-200260">circuit breakers</a> provide resettable overcurrent protection with trip-free designs and clear trip indication for quick diagnostics. For power management, their <a href="/7262-blue-sea-systems-battery-switches-manual-200149">battery switches</a> offer reliable methods for controlling battery banks and disconnecting loads during storage or emergencies, with ABYC C-7 compliance guaranteed.</p> <p>Monitoring system health is critical aboard any vessel, which is why their <a href="/7262-blue-sea-systems-battery-monitors-volt-meters-200146">battery monitors and volt meters</a> provide accurate real-time data to help operators make informed decisions about power usage and charging. The company's <a href="/7262-blue-sea-systems-terminal-blocks-bus-bars-201059">terminal blocks and bus bars</a> create organized, serviceable connection points that simplify installation and future modifications. For keeping batteries properly charged, Blue Sea Systems offers <a href="/7262-blue-sea-systems-battery-chargers-200141">battery chargers</a> engineered with features like automatic charging relay compatibility and proper charge profile management.</p> <h3>Built by Boaters, for Boaters</h3> <p>Blue Sea Systems was founded based on a commitment to create innovative high quality marine electrical products to improve the safety, simplicity, and reliability of boating, with employees who are active boaters applying their passion to designing, developing, and building products. This firsthand experience translates into practical features like modular layouts, standardized footprints, and installer-centric designs that streamline panel work and serviceability. The result is a product line that addresses real challenges faced on the water, backed by comprehensive technical documentation and support resources that help both professionals and DIY enthusiasts complete installations with confidence.</p>

Part Number

5112
06/01/2036 9:21 AM
Sale Price

$66.14

In Stock (7)

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Usually delivered within 2 days

free shipping

FREE SHIPPING

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Blue Sea Systems 5112 is a compact, extremely fast-acting Class T fuse rated at 110 amps, designed specifically for protecting high-amperage DC circuits in marine and mobile power systems. When a fault is detected in battery banks, inverters, or other high-current applications, this fuse trips instantly to prevent damage to connected components and wiring.

Key Features:

  • Extremely fast-acting response protects sensitive electronics and prevents electrical fires
  • Silver-plated blade terminals provide superior corrosion resistance and electrical conductivity in marine environments
  • Compact Class T design allows installation in tight spaces and limited access areas
  • High interrupt capacity of 20,000 amps at 160V DC handles extreme fault currents
  • Recommended by major inverter manufacturers for reliable overcurrent protection
  • Compatible with all standard Class T fuse blocks and holders

Technical Specifications:

  • Amperage Rating: 110A
  • Maximum Voltage: 160V DC
  • Interrupt Capacity: 20,000A @ 160V DC
  • Certifications: UL Listed to Standard 248-15, DC tested to UL Standard 198

Class T fuses are the preferred choice for protecting high-value inverter systems and large battery banks due to their superior speed and reliability compared to standard automotive-style fuses. The 5112 provides professional-grade circuit protection for 110-amp DC circuits in marine, RV, and off-grid power applications.

Products specifications

Amps

110A

Fuse Type

A3T

Size

2.44"L x 1.06"W

Great price and very reasonable shipping product leaked in shipping

Good so far

Easy!

Quick and easy. Hope part comes fast!

Good price. good service...everything perfect...thanks

great

I appreciate low cost and free shipping option; however, I did not see an expected date for arrival.

It didnt apply my discount code 20offshipping so shipping stayed the same. Plus it double the initial cost from $11.00 to $20 dollars

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