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Bussmann Eaton SF100X1000HP Series Semiconductor Fuse
The Bussmann Eaton SF100X1000HP series semiconductor fuse delivers fast-acting overcurrent protection engineered specifically for solid-state power electronics. Part of the Eaton Bussmann semiconductor fuse line, this model is available in Style X and Style Z configurations, giving electrical professionals a selectable option to match mounting and connection requirements for a given application. As a semiconductor-class fuse, it is designed to safeguard sensitive components such as SCRs, diodes, and rectifiers from damaging fault currents in industrial and commercial power systems. Compliance and listing details for this series are available by contacting the factory directly.
Key Features
- Series/Model: SF100X1000HP semiconductor fuse from the Eaton Bussmann series.
- Selectable Style Options: Offered in Style X and Style Z configurations to fit different application and mounting needs.
- Fast-Acting Protection: Semiconductor-class fuse construction engineered for rapid interruption of fault currents to protect solid-state devices.
- Solid-State Device Safeguarding: Helps protect SCRs, diodes, thyristors, and rectifiers from damaging overcurrent conditions.
- Eaton Bussmann Manufacturing: Backed by the Eaton Bussmann series, a recognized name in circuit protection products.
- Compliance Verification: Contact the factory for current listing and compliance documentation on this series.
Technical Specifications
- Model: SF100X1000HP
- Product Type: Semiconductor Fuse
- Style Options: X, Z
- Compliances: Contact factory
Typical Applications
- Power Electronics and Solid-State Device Protection
- Rectifier and Converter Circuits
- Motor Drive and Variable Frequency Drive (VFD) Systems
- SCR and Thyristor Protection
- Industrial and Commercial Electrical Systems
Why Bussmann?
Bussmann is an established name in circuit protection, and the Eaton Bussmann series brings that engineering focus to semiconductor fuse applications where fast, dependable interruption is critical. With the SF100X1000HP series available in both Style X and Style Z configurations, electrical professionals can select the option that best fits their equipment while relying on Eaton Bussmann manufacturing standards. For project-specific compliance requirements, contact the factory to confirm listing and certification details before specification.
Manufacturer Resources
Product Specs
- Product Height:
- .001 in
- Department:
- Electrical
- Compliances:
- Contact factory
- Product Type:
- Semiconductor Fuse
- Series:
- SF100X1000HP
- Product Group:
- Wiring Devices
Bussmann SF100X1000HP – Frequently Asked Questions
1) What is the difference between Style X and Style Z on the Bussmann SF100X1000HP semiconductor fuse?
They are two different part numbers, not just a mounting tweak. Style X ships as Bussmann part SF100X1000HP, and Style Z ships as SF80Z1500HPM. Style is the option you pick to match the mounting and connection arrangement your equipment needs, so confirm which body style your fuse holder or bus arrangement takes before you order, because the two are not interchangeable parts.
2) Can I use a Bussmann SF100X1000HP semiconductor fuse for general branch circuit or panel overcurrent protection?
No. This is a semiconductor-class fuse, built for fast interruption of fault currents in solid-state power equipment such as SCRs, diodes, thyristors and rectifiers. Semiconductor fuses clear far faster than standard branch-circuit fuses and are not a substitute for them in feeder or branch protection. If you are protecting conductors or a panel, you want a standard class fuse instead.
3) What is a cross-brand alternative to the Bussmann SF100X1000HP semiconductor fuse for protecting SCRs and rectifiers?
The Littelfuse L50S series is a very fast-acting semiconductor fuse rated 500V, and it covers the same job the Bussmann SF100X1000HP series does: rapid interruption of fault currents ahead of solid-state devices such as SCRs, diodes, thyristors and rectifiers. Before swapping, confirm the voltage and amp rating of the specific L50S catalog number against the drive or rectifier circuit, and check that the body style and mounting match what the equipment uses - the Bussmann SF100X1000HP is supplied in Style X and Style Z bodies, so the replacement has to match the holder or bolt pattern in place, not just the electrical rating.
4) What equipment is the Bussmann SF100X1000HP series fuse typically installed in?
It goes into power electronics: rectifier and converter circuits, motor drives and VFD systems, and SCR or thyristor stacks in industrial and commercial power systems. The job is to open quickly enough on a fault that the solid-state devices downstream survive it.
5) What other brands of semiconductor fuse could I use instead of the Bussmann SF100X1000HP?
Littelfuse builds a directly comparable very fast-acting semiconductor line, and the series you pick is driven by system voltage: the L15S series is rated 150VAC/150VDC, the L25S series runs at 250V, the L50S at 500V, and the L70S at 700VAC/650VDC. Match the series to your circuit voltage first, then the amp rating and body style to your holder.
6) I need a 30 amp 250 volt semiconductor fuse. Is the Bussmann SF100X1000HP the right one?
If you need a specific 250V 30A semiconductor fuse off the shelf, the Littelfuse L25S030 is the part that carries that exact rating. The SF100X1000HP is a Bussmann series sold by style option (X or Z) rather than by a published voltage and amp rating, so use it where your equipment drawing calls out the Bussmann part number directly.
7) Will a semiconductor fuse like the Bussmann SF100X1000HP protect my drive against overload, or only short circuits?
Semiconductor fuses are fast-acting devices aimed at high-magnitude fault currents, so their role in a drive or rectifier is short-circuit protection for the solid-state devices. Sustained overload and thermal protection still has to come from the drive's own electronic overload or a separate overload device. Both are normally present in a properly protected converter.
8) Which semiconductor fuse should I use on a lower-voltage DC drive instead of the Bussmann SF100X1000HP?
For lower-voltage circuits, Littelfuse offers the L15S series rated 150VAC/150VDC and the L25S series, with L25S030 rated 250V 30A. Both are semiconductor-class fuses built for the same solid-state protection duty as the Bussmann SF100X1000HP series, just at lower system voltages. Select on the actual circuit voltage and the let-through the semiconductor can tolerate, and confirm the mounting style of whichever part you choose matches the fuse holder or bolt-in block already in the panel.
9) Is there a higher-voltage semiconductor fuse than the Littelfuse L50S if my converter runs above 500 volts?
Yes - the Littelfuse L70S series is a very fast-acting semiconductor fuse rated 700VAC/650VDC, a step above the 500V L50S series. On the Bussmann side, the SF100X1000HP series covers the same class of high-speed protection for rectifier, converter and VFD circuits and is supplied in Style X and Style Z bodies. Match the fuse to the maximum system voltage first, then verify the physical style will land in the existing holder.
10) Is the Bussmann SF100X1000HP fuse UL listed?
Eaton publishes listing and compliance details for the SF100X1000HP series through the factory rather than on the series data. If your project spec calls out a specific listing or certification, get that confirmation from Eaton Bussmann before you write the fuse into the submittal.
How fast can I get the Bussmann SF100X1000HP delivered?
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Does the Bussmann SF100X1000HP come with a warranty?
Absolutely. The Bussmann SF100X1000HP is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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