Auto Bolt Down Fuse, Automotive Blade Fuse for EV Truck Vehicle Circuit Protection
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Dimensions (mm)

Auto bolt down fuse, also known as automotive blade fuse, delivers stable and reliable circuit protection for cars, trucks and new energy EV DC power systems. This bolt-down fuse adopts bolt mounting structure, designed for high-current short-circuit protection of vehicle main power circuits. Note: This is a short-circuit-only protector and does not support overload protection.
Key Features
- Bolt-down installation design, easy assembly on busbar and power distribution boards
- High conductivity tin-plated copper terminals, low contact resistance
- Compact structure, good heat dissipation for continuous heavy-current working
- Stable breaking capacity for DC vehicle power circuits
- Wide application: passenger cars, trucks, RV, marine and electric vehicles
- Flame retardant housing material, safe for automotive electrical environments
General Specifications
| Item | Parameter |
|---|---|
| Product Type | Auto bolt down fuse / automotive blade fuse |
| Installation Method | Bolt-down mounting |
| Terminal Material | Copper alloy, tin-plated |
| Function | Short-circuit protection only, no overload protection |
| Application | Cars, trucks, RV, marine, EV DC main circuit |
Application Scenarios
- Electric vehicle battery main circuit short-circuit protection
- Truck, heavy-duty vehicle DC power distribution system
- RV, caravan and marine boat high-current circuit protection
- Auto modification high-power audio and electrical system
Match this auto bolt down fuse with our bolt down fuse holders for complete automotive power protection assembly.
Installation Guidance
- Cut off the power supply before fuse replacement or installation.
- Control bolt torque properly to avoid poor contact and overheating.
- Check terminal tightness regularly for long-term heavy-current operation.
- Do not exceed the rated current and voltage of the fuse.
Preguntas frecuentes
Q: What is an auto bolt down fuse?
A: Auto bolt down fuse is a heavy-duty automotive blade fuse with bolt mounting structure, used for short-circuit protection on high-current DC circuits of vehicles, trucks and EVs.
Q: Can this automotive blade fuse protect against overload?
A: No. This auto bolt down fuse is designed for short-circuit protection only, it cannot protect against slow overload faults.
Q: What vehicles can this bolt down fuse be used for?
A: It is widely suitable for ordinary cars, trucks, RV, marine boats and new energy electric vehicle DC power circuits.
Q: Do I need a fuse holder for this bolt down fuse?
A: It can be directly bolted to busbars; you can also select matching bolt down fuse holders for safer installation.
Q: How to choose the correct current rating?
A: Select the rated current according to your maximum continuous working current of the circuit, consult our engineering team if you are not sure.




