HOLLY FUSE H1FF550 1250V 550A Fuse
● LT: 2-4wH1FF550 is part of the HOLLY FUSE H1FF range, specified at 550A, 1250V.
Rated Current550A
Rated Voltage1250V
Breaking Capacity100000A at 1250V AC
PackageNH1
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Part NumberH1FF550BrandHollylandRequested Qty
The HOLLY FUSE H1FF550 fuse carries 550A, 1250V and belongs to the H1FF family. Standards: IEC 60269, UL 248. Approvals: UL Recognized, TÜV, CCC, CE. Interrupting/breaking capacity: 100000A at 1250V AC.
Quick answer, specifications & FAQ
Direct answer
Hollyland Fuse H1FF550 is rated 550A, 1250V, Very Fast Acting, NH1. Breaking capacity 100000A at 1250V AC, certifications UL Recognized · TÜV · CCC · CE. Listed applications: Power Electronics. Standards: IEC 60269, UL 248. H1FF550 is part of the HOLLY FUSE H1FF range, specified at 550A, 1250V.
Key specifications
- Part number: H1FF550
- Brand: Hollyland
- Rated current: 550A
- Rated voltage: 1250V
- Breaking capacity: 100000A at 1250V AC
- Fuse speed: Very Fast Acting
- Package size: NH1
- Terminal type: Blade
- Certifications: UL Recognized · TÜV · CCC · CE
- Standards: IEC 60269, UL 248
- Rating table: 100,000 amperes at 1250V AC | 50,000 amperes at 1000V DC
- Rated current type: AC/DC
Frequently asked questions
What are the current and voltage ratings of H1FF550?
H1FF550 is rated 550A at 1250V.
What is the breaking capacity of H1FF550?
H1FF550 has a breaking capacity of 100000A at 1250V AC. Confirm this covers the available fault current at the installation point.
What package size does H1FF550 use?
H1FF550 uses NH1 package size.
Which standards and approvals apply to H1FF550?
H1FF550 is listed under IEC 60269, UL 248 / UL Recognized · TÜV · CCC · CE.
What is H1FF550 used for?
H1FF550 is listed for Power Electronics applications. Verify suitability for your circuit before ordering.
Data sources
- Part number
- H1FF550
- Brand
- Hollyland
- Last updated
- 2026-10-05
- Canonical URL
- https://fusestock.com/products/holly-fuse-h1ff550/
Technical Specifications
- Part Number
- H1FF550
- Manufacturer Part Number
- H1FF550
- Series
- H1FF
- Fuse Type
- Fuse
- Current Rating
- 550A
- Voltage Rating
- 1250V
- AC / DC
- AC/DC
- Breaking Capacity
- 100000A at 1250V AC
- Package / Dimensions
- NH1
- Mounting
- Bolt-Down
- Application
- Power Electronics
- Standard
- IEC 60269 · UL 248
- Terminal Type
- Blade
- Fuse Speed
- Very Fast Acting
- Utilization Class
- aR
- Approvals
- CCC · CE · TUV · UL Recognized
- Certifications
- UL Recognized · TÜV · CCC · CE
- Rating table
- 100,000 amperes at 1250V AC | 50,000 amperes at 1000V DC
- Rated current type
- AC/DC
- Standards also cited
- IEC 60269-4, GB/T 13539.4, UL 248-13
- Source
- powerfuse catalogue page 59
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