Square Car Fuse 20A–50A Waterproof Automotive Fuse Box

Square Automotive Car Fuse – Waterproof Protection for Your Vehicle

Keep your vehicle's electrical system safe and reliable with this compact Square PEC Automotive Car Fuse. Available in multiple amp ratings — 20A, 25A, 30A, 40A, and 50A — this mini square fuse is engineered for a wide range of automotive applications, including compatibility with popular makes such as Nissan and Toyota. Its rugged zinc construction and waterproof fuse box design ensure long-lasting performance even in demanding under-hood environments.

Key Features

• Multiple Amp Ratings: Choose from 20A, 25A, 30A, 40A, or 50A to match your specific circuit requirements.
• Compact Size: Measures just 16 × 12 × 10 mm — fits easily in tight spaces without added bulk.
• Durable Zinc Material: Built to withstand heat, vibration, and moisture for dependable automotive use.
• Waterproof Design: Sealed fuse box option helps protect against moisture, dust, and corrosion.
• Broad Compatibility: Suitable for Nissan, Toyota, and many other vehicle makes; socket optional for flexible installation.
• IEC Safety Standard Compliant: Manufactured to meet IEC safety standards for automotive electrical components.
• Customizable: Optional socket available for added installation convenience.

Specifications

• Brand: HELTC
• Material: Zinc
• Amperage Options: 20A, 25A, 30A, 40A, 50A
• Voltage: Up to 58V
• Size: 16 × 12 × 10 mm
• Safety Standard: IEC
• Country of Origin: Made in China

What's in the Box?

1 × Mini Square Automotive Car Fuse (amp rating of your choice)

Shop Related Automotive Accessories

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• Shop Our Full Automotive Collection

For more information on automotive electrical safety and fuse standards, visit the U.S. Consumer Product Safety Commission (CPSC).

Learn more: Automotive fuse

Frequently Asked Questions

Q: What amperage square car fuse do I need for my vehicle?

A: The correct amperage depends on the specific circuit you are protecting. Always consult your vehicle's owner manual or wiring diagram. Common choices include 20A for lighter accessories, 30A for mid-draw circuits, and 40A–50A for higher-current applications. Never exceed the rated amperage for the circuit.

Q: Is this square automotive fuse compatible with Nissan and Toyota vehicles?

A: Yes, this PEC square car fuse is designed for compatibility with Nissan, Toyota, and many other popular vehicle makes. Its compact 16 × 12 × 10 mm form factor fits a wide variety of fuse boxes and holders. An optional socket is also available for easier installation.

Q: Is the fuse waterproof, and can it be used in exposed engine bay locations?

A: The fuse box included with this product offers a waterproof design, making it suitable for use in engine bays and other areas exposed to moisture and dust. The zinc construction adds further durability against heat and vibration commonly found in automotive environments.