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Fuse Clip for ATU Blade Fuse – Compact, Reliable, and Safe Circuit Protection

Updated: Dec 24, 2025


Introduction

In automotive and industrial electronics, reliable circuit protection is essential. The Fuse Clip for ATU Blade Fuse offers a compact, flame-retardant, and high-performance solution for PCB mounting. With a 40A current rating, UL 94V-0 certified materials, and corrosion-resistant contacts, it ensures long-term safety and efficiency.


Technical Specifications

·         Rated Current: Up to 40A

·         Body Material: Nylon UL 94V-0 – flame retardant per UL standards

·         Contact Material: Brass with tin plating – high conductivity and anti-corrosion

·         Mounting Style: PCB mount for ATU blade fuses

👉 Authority Reference:According to UL 94 Flammability Standards, V-0 rated plastics stop burning within 10 seconds and do not produce flaming drips, ensuring higher fire safety for electrical components.

Applications

·         Automotive electrical systems (cars, buses, trucks)

·         Marine and outdoor equipment (resistant to vibration and humidity)

·         Industrial control systems and automation

·         Energy storage & EV power systems

Engineering Tips – Formula Conversions

  1. Power Handling

P=V×IP = V \times IP=V×I

For a 12V system with a 40A fuse clip:

P=12V×40A=480WP = 12V \times 40A = 480WP=12V×40A=480W

This means the fuse clip can safely support circuits up to 480W in a 12V application.

  1. Wire Gauge Selection (Simplified)

    40A load ≈ AWG 8 copper wire (based on IPC-2221 standards).

  2. Contact Resistance & Heat

    Lower resistance = less heat. A tin-plated brass contact reduces I²R losses, keeping the component cooler and extending PCB life.

Advantages

· Space-Saving: Compact PCB mount design

· Durability: Flame-retardant nylon body, tinned brass contacts

· Safety Compliance: Meets UL, RoHS, and REACH standards

· High Reliability: Withstands vibration and harsh environments

FAQ – Common Questions Engineers Ask

Q1: What is the difference between a Fuse Clip and a Fuse Holder?A fuse clip is designed for direct PCB mounting and saves space. A fuse holder often comes with casing for external wiring and tool-free replacement.

Q2: What does UL 94V-0 mean?It means the plastic self-extinguishes flames within 10 seconds and produces no flaming drips – a higher safety level per UL standards.

Q3: Where are ATU blade fuses used?They are widely used in automotive, marine, and industrial equipment, especially where medium-high currents (up to 40A) are required.

Conclusion

The Fuse Clip for ATU Blade Fuse is more than just a small connector – it is a reliable safeguard for electrical systems. With its 40A rating, UL 94V-0 flame resistance, and corrosion-proof materials, it ensures stable performance in automotive, marine, and industrial environments.

References

 
 
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