Description
GFEV/A300 Bolt-on Fuse Holder, MEGA Fuse Holder,bolt down fuse types ，Automotive Fuse Holder
- Product Image:
- Product model: GFEV/A300 bolt-on fuse holder MEGA bolt down fuse holder types
- Electrical Rating: 12V-250V (DC), 30A-500A (DC)
- Materials: Plastic: PA66, Fixer: 8.8 grade bolts
- Operating Temperature: -25 to 125 degrees
- Applicable: MEGA fuses and DC equipment such as automobiles, batteries, power supplies, instruments, mobile power supplies, forklifts, etc.
The GFEV/A300 MEGA Bolt Down Fuse Holder is a heavy-duty bolt-on type holder engineered for high-current DC circuits. Designed to fit standard MEGA fuses (200A–500A), it delivers robust electrical connection, high vibration resistance, and reliable overcurrent protection for EV, energy storage, solar, and industrial heavy machinery applications.
Key Specifications
- Model: GFEV/A300
- Fuse Compatibility: MEGA bolt-down fuses (200A, 250A, 300A, 400A, 500A)
- Rated Current: Up to 500A DC
- Rated Voltage: 80V DC
- Terminals: M8 bolt (standard), tin-plated copper
- Material: Flame-retardant thermoplastic housing, high-conductivity copper contacts
- Mounting: Surface-mount / chassis-mount (bolt-on installation)
- Certifications: UL 248-1, RoHS compliant
Core Features
✅ Heavy-Duty High-Current Design
Built for 200–500A extreme DC loads; oversized contacts minimize voltage drop and temperature rise under continuous full current.
✅ MEGA Fuse Compatibility
Precision cavity fits all standard MEGA bolt-down fuses; easy drop-in installation and secure bolt clamping.
✅ Vibration & Shock Resistant
Reinforced housing and bolted terminals prevent loosening in heavy vehicles, off-road machinery, and marine environments.
✅ Excellent Heat Dissipation
Open-frame design + high-grade copper contacts reduce hot spots; stable performance at high ambient temperatures.
✅ Safe & Durable
Flame-retardant housing resists arc flash and chemical corrosion; long service life in harsh industrial and outdoor conditions.
Common Applications
- Electric Vehicles (EV/HEV): Main battery feed, high-power auxiliary circuits
- Solar & Energy Storage (ESS): Battery banks, inverter DC inputs, heavy PV combiner boxes
- Heavy Machinery: Construction equipment, forklifts, cranes, mining machines
- Marine: Yacht/boat battery systems, winches, heavy DC loads
- Trucks & RVs: High-current audio, dual-battery setups, heavy accessories
Installation Instructions
- Mounting: Secure the holder to a flat, rigid surface using M8 bolts.
- Fuse Installation: Place MEGA fuse into the cavity; tighten M8 terminal bolts firmly (torque: 8–10 Nm).
- Wiring: Connect thick-gauge DC cables (2/0 AWG or larger) to the M8 terminals; ensure clean, tight connections.
- Torque: Always recheck bolt torque after installation and periodically in high-vibration environments.
FAQ
What fuse does GFEV/A300 fit?
It fits standard MEGA bolt-down fuses (200A–500A).
What’s the max current rating?
Up to 500A DC, 80V DC.
Can it be used for EV battery systems?
Yes—ideal for EV/HEV main battery circuits and high-current auxiliary feeds.
Difference between ANL and MEGA holders?
MEGA handles 200–500A (higher than ANL’s 35–750A range but physically larger); GFEV/A300 is optimized for MEGA fuses in heavy-duty DC systems.