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High Voltage eMoto Fuse Kit & Replacement Fuses
Protect your battery, controller, and high-current electrical system with a proper 120VDC-rated fuse setup built for high-power eMoto builds.
Use the chart below to match the fuse to your controller peak-output range. The 250A option covers most common setups, while 300A and 450A options are for higher-output builds.
Why 120VDC?
These are 120VDC-rated fuses. That does not mean they are only for 120V batteries. It means the fuse is rated for DC battery systems up to 120V.
Most eMoto batteries are listed by nominal voltage, like 60V, 72V, 81V, 96V, or other common eMoto battery ratings. The battery voltage is higher when the pack is fully charged, so the fuse voltage rating needs to be higher than the battery's highest charged voltage.
For most eMoto builds, a 120VDC fuse covers the correct voltage range, including lower-voltage setups and 96V nominal systems.
Do not use basic 32V automotive fuses on high-voltage eMoto battery systems.
Which Fuse Should I Choose?
Use your controller peak-output setting as the starting point:
| Controller peak output | Recommended fuse | Best for |
|---|---|---|
| Up to 30kW peak | 250A, 120VDC | Best all-around fuse for most common setups |
| 30-40kW peak | 300A, 120VDC | Riders pushing beyond the 30kW peak-output range |
| 40kW+ peak | 450A, 120VDC | Serious high-power builds pushing past 40kW peak output |
Available Options
- Kit With 250A Fuse - Complete kit with a 250A 120VDC fuse, fuse case, and mounting hardware. Best all-around choice for most common eMoto builds up to 30kW peak output.
- Kit With 300A Fuse - Complete kit with a 300A 120VDC fuse for builds in the 30-40kW peak-output range.
- Kit With 450A Fuse - Complete kit with a 450A 120VDC fuse for serious high-power builds pushing past 40kW peak output.
- 250A Fuse Only - 250A 120VDC fuse only for riders who already have the fuse holder installed.
- 300A Fuse Only - 300A 120VDC fuse only for higher-output builds using an existing fuse holder.
- 450A Fuse Only - 450A 120VDC fuse only for serious high-power builds using an existing fuse holder.
Controller Warranty Note
Some controller manufacturers, including EBMX, require a fuse to be installed for warranty coverage. If your controller manufacturer requires a fuse, do not skip it.
Features
- 120VDC-rated fuse setup for high-output eMoto battery systems
- 250A, 300A, and 450A fuse options
- 250A is the best all-around choice for most common builds
- 300A and 450A options available for higher-power builds
- Complete fuse kit options available for new installs
- Fuse-only options available for riders who already have a fuse holder installed
- Helps protect the bike's high-current electrical system during overcurrent events
- May be required for controller warranty coverage, depending on the controller manufacturer
Fuse Kit Includes
- 1x 120VDC fuse in selected amp rating
- 1x plastic fuse case
- 1x M6 serrated flange nut
- 1x M6 x 10mm ultra-low-profile socket head screw
- 1x M6 x 1.5mm thick washer
- 2x M6 x 1mm thick washers
How to Install
Installation Notes
Install the fuse between the battery positive lead and the controller positive input.
Always disconnect the battery before working on the electrical system. If you are not comfortable working around high-voltage battery wiring, have the fuse installed by a qualified shop.
Detailed installation instructions are included with the fuse kit.
Important Note
A fuse helps protect the bike's high-current electrical system during overcurrent events, but the correct fuse size still depends on your controller setup, battery, and power level.
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