Tuxihapp Micro Cartridge Fuses 25‑Pack (15A–40A) FMM/M‑Case Slow‑Blow, Color‑Coded Automotive Set

Tuxihapp 25PCS Micro Cartridge Fuses are a color-coded assortment of slow-blow square plug-in fuses (15A–40A) built from copper alloy and durable plastic for reliable circuit protection in most vehicles.

This kit gathers 25 compact micro cartridge fuses in five commonly used ratings so you can replace blown fuses quickly and keep electrical systems running. Each fuse uses a robust copper-alloy element housed in a flame-retardant plastic shell. The square plug-in design matches FMM/M-case sockets found in many cars, trucks, ATVs, golf carts and marine applications. Bright, consistent colors help you spot the right rating at a glance, while the small footprint makes the set easy to store in a glovebox or tool kit.

How do these fuses protect my vehicle's electrical system?

These slow-blow micro fuses interrupt current flow when an overload or short circuit occurs, helping prevent component damage and reducing fire risk. Their construction balances reliable conductivity with temperature resistance so they perform under typical automotive conditions.

• Slow-blow element tolerates brief current spikes without nuisance blows
• 32 VDC rated with a breaking capacity up to 1000A under specified conditions
• Copper alloy core for consistent electrical performance
• Flame-retardant plastic bodies resist heat and harsh environments

Which fuse ratings are included and how are they identified?

The set contains five fuses of each rating: 15A, 20A, 25A, 30A and 40A — a common spread for accessory and control circuits. Each rating comes in a distinctive color so you can quickly find the correct replacement without guessing.

• 15A — gray shell for lower-draw circuits
• 20A — blue shell for medium-draw devices
• 25A — yellow shell for higher accessory loads
• 30A — pink shell for heavier circuits
• 40A — green shell for high-current applications

Will these fuses fit my vehicle and where should I store them?

The square plug-in footprint conforms to M-case/FMM style sockets commonly used across passenger cars, trucks, recreational vehicles, ATVs, golf carts and many marine applications. Their compact size makes them ideal for on-board storage so you’re ready for roadside or workshop replacements.

• Compact dimensions: top 0.42 × 0.31 inch, height 0.6 inch, bottom 0.38 × 0.24 inch
• Works in most vehicles with M-case / square plug fuse holders
• Small enough for glovebox, tool kit, or under-dash storage
• Useful for trailer power, brake control, lighting, and accessory circuits

How durable are these fuses under real-world conditions?

These fuses are built from high-temperature-resistant materials and a sturdy copper alloy element to withstand repeated use and fluctuating automotive temperatures. Their flame-retardant housings and robust internal construction aim to keep them reliable over time.

• Copper-alloy element for long-lasting conductivity and strength
• Plastic shells rated for high-temperature exposure and flame resistance
• Designed to resist corrosion and mechanical stress in vehicle environments
• Packaged as a 25-piece kit to reduce frequent reordering

Who is this for? Drivers, fleet managers, mechanics and DIY vehicle owners who want a dependable, easy-to-organize supply of slow-blow square plug-in fuses will find this Tuxihapp kit useful. It's especially suited to those who maintain multiple vehicles or work on trailers, ATVs, golf carts or marine equipment and need a compact, color-coded assortment for fast troubleshooting and replacement.