HR17 Fuse Disconnector
The VIOX HR17 fuse disconnector is designed for high short-circuit current circuits in industrial power distribution systems. The range covers 160A to 630A models with 3P and 4P options, up to 690V insulation voltage, and NT00 to NT3 fuse link compatibility.
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The VIOX HR17 fuse disconnector is built for high short-circuit current circuits in industrial and commercial power distribution systems. It combines switching, isolation, and fuse protection functions in one device, making it suitable for use as a power switch, isolating switch, and emergency switch in low-voltage applications.
This series is designed for AC 50/60Hz systems, with insulation voltage up to 690V and rated working current up to 630A. The HR17 structure is suitable for panel builders, switchboard manufacturers, OEMs, and project buyers who need dependable isolation and fuse-based protection in compact power distribution assemblies.
Key Features
- Designed for AC 50/60Hz power distribution systems
- Rated working current range from 160A to 630A
- Insulation voltage up to 690V
- Available in 3P and 4P configurations
- Compatible with NT00, NT1, NT2, and NT3 fuse links depending on model
- Suitable for switching, isolation, and emergency switching functions
- Built with knife-edge and arc-extinguishing structure for practical load operation
Product Description
The HR17 fuse disconnector is intended for circuits that require both isolation and current protection. It is used where operators need a clear manual switching point together with matched fuse link protection for the connected line or equipment. The series supports upper and lower end input and output structure, which helps adapt the device to different panel layouts and cabinet wiring designs.
For B2B buyers, the value of the HR17 series is its combination of current range, fuse compatibility, and practical switch function. It helps simplify power isolation and protection design in distribution boards, industrial control cabinets, and electrical switchgear assemblies.
Technical Specifications
| Model | Rated Working Current (Ie) | Rated Short-Circuit Connecting Capacity (Icm) | Rated Limit Short-Circuit Current (Inc) | Rated Insulated Voltage (Ui) | Use Type | Poles | Matched Fuse Link |
|---|---|---|---|---|---|---|---|
| HR17-160 | 160A | 1600A | 50kA | 690V | AC-23B | 3P, 4P | NT00 |
| HR17-250 | 250A | 2500A | 50kA | 690V | AC-23B | 3P, 4P | NT1 |
| HR17-400 | 400A | 4000A | 50kA | 690V | AC-23B | 3P, 4P | NT2 |
| HR17-630 | 630A | 6300A | 50kA | 690V | AC-23B | 3P, 4P | NT3 |
Dimensions
| Model | Poles | Assorted Fuse | A | B | C | D | a | b | c |
|---|---|---|---|---|---|---|---|---|---|
| HR17-160 | 3P | NT00 | 106 | 200 | 83 | 205 | 66 | 25 | Φ7 |
| HR17-250 | 3P | NT1 | 185 | 247 | 110 | 295 | 114 | 50 | Φ11 |
| HR17-400 | 3P | NT2 | 210 | 290 | 125 | 340 | 130 | 50 | Φ11 |
| HR17-630 | 3P | NT3 | 256 | 300 | 145 | 360 | 162 | 50 | Φ11 |
| HR17-160 | 4P | NT00 | 138 | 200 | 83 | 205 | 100 | 25 | Φ7 |
| HR17-250 | 4P | NT1 | 242 | 247 | 110 | 295 | 172 | 50 | Φ11 |
| HR17-400 | 4P | NT2 | 276 | 290 | 125 | 340 | 195 | 50 | Φ11 |
| HR17-630 | 4P | NT3 | 340 | 300 | 145 | 360 | 243 | 50 | Φ11 |
Applications
The VIOX HR17 fuse disconnector is suitable for applications where isolation and fuse protection must be combined in one switching device. It is commonly used in low-voltage power distribution systems that require manual switching, maintenance isolation, and short-circuit protection through matched fuse links.
- Power distribution panels
- Industrial control cabinets
- Electrical switchgear assemblies
- OEM equipment power input sections
- Main isolation and emergency switching points
- Commercial and industrial low-voltage distribution systems
Why Choose VIOX HR17 Fuse Disconnectors
The HR17 series gives buyers a structured current range with clear fuse-link matching and pole selection. This helps simplify product selection for panel builders and sourcing teams that need dependable switch isolation and fuse-based protection across multiple project requirements.
- Complete 160A to 630A current range
- 3P and 4P options for different system configurations
- Matched NH fuse link sizes for practical selection
- Suitable for switching and isolation functions under load
- Built for industrial and commercial distribution applications
- Useful for OEM, panel building, and project procurement
FAQ
What is an HR17 fuse disconnector used for?
It is used as a power switch, isolating switch, and emergency switch in low-voltage distribution systems where fuse protection is also required.
What current range does the HR17 series cover?
The series shown on the source page covers 160A, 250A, 400A, and 630A models.
What fuse links match the HR17 models?
HR17-160 matches NT00, HR17-250 matches NT1, HR17-400 matches NT2, and HR17-630 matches NT3 fuse links.
Is the HR17 available in both 3P and 4P versions?
Yes. The source dimension table lists both 3P and 4P configurations across the product range.
What voltage is the HR17 fuse disconnector designed for?
The source page states insulation voltage up to 690V for the HR17 series.
Request a Quote
If you are sourcing fuse disconnectors for switchgear, panel building, or OEM power distribution projects, VIOX can help match the correct HR17 model based on current rating, pole configuration, and fuse-link requirement. Send your target specifications and quantity request for product confirmation and quotation support.
