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Blue Sea 5113 125A Class T Fuse [5113]

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Regular price
$64.79
Regular price
$82.99
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$64.79
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SKU: CWR-19020   UPC: 632085051136

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Class T fuse for high-current DC circuit protection, delivering a fast short-circuit response and 20,000A interrupt capacity for marine, RV, automotive, battery-bank, and inverter applications.

This 125A Blue Sea Systems Class T fuse is designed to interrupt high fault currents quickly in DC electrical systems. Its 20,000 Ampere Interrupt Capacity helps protect high-current circuits where short-circuit energy can be substantial. The fuse is UL listed to standard 248-15 and DC tested to UL standard 198L. Use it with a compatible Class T fuse block for properly installed circuit protection.

  • 125A Class T rating: Provides circuit protection for appropriately sized high-current DC systems.
  • Extremely fast short-circuit response: Helps interrupt fault current quickly to limit exposure to connected equipment.
  • 20,000A interrupt capacity: Supports protection in systems where available short-circuit current may be high.
  • UL listed to 248-15: Provides a recognized standard for the fuse construction and rating.
  • DC tested to UL 198L: Supports use in DC circuit-protection applications when installed according to system requirements.
  • Class T format: Fits compatible Class T fuse holders used in marine, RV, automotive, battery, and inverter systems.
Install the Blue Sea Systems 5113 in a compatible Class T fuse block as part of a properly sized DC power-distribution system. It is suited to main battery protection, inverter or inverter-charger circuits, and other high-current applications in boats, RVs, and automotive electrical installations. The fast response helps address short-circuit conditions, while the 20,000A interrupt capacity is intended for systems with substantial available fault current. Confirm the fuse rating, holder compatibility, conductor sizing, and system voltage before installation. This product is a fuse only; a compatible fuse block and appropriate installation hardware may be required.
Brand Blue Sea Systems
Model 5113
Product type Fuse
Fuse type Class T
Amperage 125A
Interrupt capacity 20,000A AIC
Certifications/tests UL 248-15 listed; DC tested to UL 198L
SKU CWR-19020
UPC 632085051136
Box dimensions 2" H x 4" W x 6" L
Box weight 0.2 lb
  • What is the Blue Sea Systems 5113?
    The 5113 is a 125A Class T fuse for high-current DC circuit protection.
  • Where is this fuse commonly used?
    It can be used in appropriately designed marine, RV, automotive, battery-bank, and inverter electrical systems.
  • Does it include a fuse holder?
    No. The product is the fuse only; use it with a compatible Class T fuse block.
  • What does the 20,000A AIC rating mean?
    It identifies the fuse’s stated ability to interrupt a short-circuit current up to 20,000A under applicable rating conditions.
  • What should be checked before installation?
    Verify the system’s required amperage, voltage, conductor sizing, fuse-block compatibility, and installation requirements.
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Blue Sea 5113 125A Class T Fuse [5113]