Description
The HR17 Fuse Type Isolating Switch is designed for low-voltage power distribution systems requiring switching and fuse-based circuit protection. It combines a switching mechanism with compatible NH fuse links in an integrated electrical device.
The HR17 series is available in four models: HR17-160, HR17-250, HR17-400 and HR17-630, covering rated current options from 160A to 630A.
Featuring an enclosed insulating housing, a blue operating handle and an integrated fuse connection structure, the HR17 series is designed for installation in compatible low-voltage electrical distribution equipment.
With a rated voltage of 500/690V and a specified power-frequency withstand voltage of 3000V, the series provides different electrical ratings and installation dimensions to meet various equipment configuration requirements.
Key Features
- Four models available: HR17-160, HR17-250, HR17-400 and HR17-630
- Rated current options from 160A to 630A
- Rated voltage of 500/690V
- Power-frequency withstand voltage of 3000V
- Compatible with RT16 series fuse links
- Supports different NH fuse link sizes
- Handle-operated switching mechanism
- Enclosed insulating housing
- Multiple dimensional configurations for installation planning
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | HR17 Fuse Type Isolating Switch |
| Product Series | HR17 |
| Product Type | Fuse Type Isolating Switch |
| Available Models | HR17-160 / HR17-250 / HR17-400 / HR17-630 |
| Rated Voltage | 500/690V |
| Power-Frequency Withstand Voltage | 3000V |
| Rated Current | 160A / 250A / 400A / 630A |
| Compatible Fuse Link Series | RT16 |
| Operating Structure | Handle-operated |
| Configuration Shown | 3-pole |
Model Specifications
The HR17 series offers four models with different rated current capacities and compatible fuse link sizes.
| Specification | HR17-160 | HR17-250 | HR17-400 | HR17-630 |
|---|---|---|---|---|
| Rated Current | 160A | 250A | 400A | 630A |
| Fuse Link | RT16-00 | RT16-1 | RT16-2 | RT16-3 |
| Compatible Fuse Size | NT00 / NH00C | NT1 / NH1 | NT2 / NH2 | NT3 / NH3 |
| A (mm) | 202 | 240 | 288 | 300 |
| E (mm) | 106 | 184 | 210 | 250 |
| H (mm) | 83 | 115 | 126 | 135 |
| H1 (mm) | 208 | 290 | 335 | 350 |
| B (mm) | 65 | 114 | 130 | 162 |
Dimension Figure
The dimensional drawing illustrates the external structure, mounting references and operating handle arrangement of the HR17 Fuse Type Isolating Switch.
Dimensions vary according to the selected rated current model. Buyers should refer to the corresponding model specifications when planning cabinet installation and electrical equipment layouts.
All dimensions are expressed in millimeters.
Compatible Fuse Links
The HR17 Fuse Type Isolating Switch supports different RT16 fuse link sizes according to the selected model:
- HR17-160: RT16-00, compatible with NT00 and NH00C
- HR17-250: RT16-1, compatible with NT1 and NH1
- HR17-400: RT16-2, compatible with NT2 and NH2
- HR17-630: RT16-3, compatible with NT3 and NH3
The fuse link must match the corresponding contact arrangement and electrical requirements of the selected switch.
Applications
The HR17 series is designed for compatible low-voltage electrical distribution installations.
1. Low-Voltage Distribution Panels
Integrated into distribution panel assemblies requiring fuse-based circuit protection and switching arrangements.
2. Industrial Electrical Cabinets
Used in compatible industrial electrical cabinets and power distribution equipment.
3. Power Distribution Systems
Applied in low-voltage power distribution installations where a fuse-type isolating switch is required.
4. Electrical Switchgear Assemblies
Suitable for integration into compatible switchgear and electrical distribution assemblies.
5. Industrial Electrical Equipment
Used by electrical equipment manufacturers and panel builders sourcing fuse-type isolating switches for industrial projects.
How to Choose the Right HR17 Model
Selecting the correct HR17 model requires checking the rated current, fuse link compatibility and installation dimensions.
1. Select the Rated Current
Choose from 160A, 250A, 400A or 630A according to the electrical system requirements.
2. Confirm Fuse Link Compatibility
Each model supports a corresponding RT16 fuse link size. Verify the compatible NT or NH fuse designation before ordering.
3. Check the Rated Voltage
The HR17 series has a rated voltage of 500/690V. Confirm that it matches the intended electrical installation.
4. Verify Installation Dimensions
Compare dimensions A, B, E, H and H1 with the available cabinet space and mounting arrangement.
5. Confirm the Required Configuration
The supplied dimensional drawing shows a three-pole configuration. Confirm the required product configuration and installation requirements with the supplier.
FAQ
What is an HR17 Fuse Type Isolating Switch?
It is a low-voltage electrical switching device designed for use with compatible fuse links in power distribution applications.
What rated current options are available?
The HR17 series includes four models: HR17-160 (160A), HR17-250 (250A), HR17-400 (400A) and HR17-630 (630A).
Which fuse links are compatible with the HR17 series?
The series supports RT16-00, RT16-1, RT16-2 and RT16-3 fuse links, depending on the selected model.
What is the power-frequency withstand voltage?
The specified power-frequency withstand voltage is 3000V.
Can I purchase different HR17 models in one order?
Different rated current models can be specified in the same quotation request. Please provide the required models and quantities for confirmation.
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