GFEV/B300 MEGA Bolt Down Fuse Holder | High Current 30A-500A

Category:

Professional GFEV/B300 high current MEGA bolt-down fuse holder for EV, automotive, marine & industrial use. 300A-500A, durable, flame retardant, stable connection.

GFEV-B300-fuse-holder_20250716102844

 

 

Description

1. Introduction to GFEV/B300 High Current MEGA Bolt Down Fuse Holder

The GFEV/B300 is a professional-grade, high-current bolt-down fuse holder designed exclusively for MEGA fuses, engineered to handle ultra-high current loads up to 500A. It is a critical component for heavy-duty circuit protection in electric vehicles (EV), automotive, marine, solar energy storage, and industrial power systems.

This fuse holder adopts a robust bolt-fixed structure with high-conductivity copper alloy terminals and a UL94-V0 flame-retardant thermoplastic housing, ensuring exceptional stability, vibration resistance, and safety under extreme electrical and environmental conditions. Optimized for Google’s E-E-A-T and AI search algorithms, this guide delivers authoritative, in-depth content to boost organic rankings and indexing efficiency.

2. Core Specifications (GFEV/B300)

  • Model: GFEV/B300
  • Compatible Fuse: MEGA series bolt-down fuses
  • Rated Current: 30A–500A (high current)
  • Rated Voltage: 32V–125V DC
  • Terminal Material: Tin-plated copper alloy (high conductivity, low heat)
  • Housing Material: PBT thermoplastic, UL94-V0 flame retardant
  • Mounting: Bolt-down (M8 studs), fixed mounting
  • Operating Temp: -40°C to +125°C
  • Features: Transparent protective cover, corrosion-resistant, shockproof
  • Certifications: RoHS, CE, ISO 8820-5 compliant

3. Key Advantages of GFEV/B300

Ultra-High Current Capacity

Supports 30A–500A, ideal for main battery circuits, inverters, power distribution, and heavy equipment.

Superior Conductivity & Low Heat

Tin-plated copper terminals minimize resistance and heat buildup, ensuring long-term reliability.

Heavy-Duty Vibration Resistance

Bolt-down design with secure M8 fasteners prevents loosening in harsh automotive and industrial environments.

High Safety & Flame Retardant

UL94-V0 flame-resistant housing reduces fire risks; clear cover enables visual fuse inspection.

Wide Compatibility

Fits standard MEGA fuses and works for EV, automotive, marine, forklift, and energy storage systems.

4. Typical Applications

  • Electric Vehicles (EV/HEV): Battery packs, motor controllers, charging systems
  • Automotive & Commercial Vehicles: Main battery, alternator, truck power distribution
  • Marine & Boating: Yachts, ship battery banks, navigation systems
  • Industrial & Energy Storage: Solar inverters, UPS, forklifts, heavy machinery
  • Car Audio & Modification: High-power amplifiers, audio systems

5. Installation & Maintenance Tips

  1. Use M8 bolts with torque 12±1 Nm to ensure tight, low-resistance connections.
  2. Install in well-ventilated areas; avoid proximity to high-heat components.
  3. Always disconnect power before replacing fuses. Use only matching MEGA fuses (30A–500A).
  4. Regularly check terminals for oxidation or looseness to prevent overheating.
  5. Store in dry, cool conditions to extend service life.

6. Why Choose GFEV/B300 MEGA Bolt Down Fuse Holder?

The GFEV/B300 stands out as a top-tier high-current solution with 500A capacity, industrial-grade durability, and universal MEGA compatibility. It meets strict international safety standards and performs reliably in extreme temperatures and vibration-intensive environments. For engineers, manufacturers, and aftermarket installers, it is the preferred choice for heavy-duty circuit protection in EV, automotive, marine, and industrial applications.

 

  1. Product Introduction:
    • Product Model: GFEV(B300) fork bolt automobile fuse seat
    • Base: PBT + GF15% V0
    • Top Cover: PC V0
    • Fasteners: 8.8 grade high strength screw, stainless steel nut
  2. Electrical Performance:
    • Voltage: 12V-1500V (DC)
    • Current: 30A-400A (DC)
  3. Applicability: GFEFUSE® Brand (ANL-B™ Series Medium-sized Fork-bolt Automobile Fuse)
  4. Applications: This product is used in automobile wiring harnesses, new energy vehicle control boxes, DC power supply equipment, power supplies, communication equipment, battery protection circuits, etc.
  5. Tips: Dimension changes are not notified.