Description
The HR17B Fuse Type Isolating Switch is designed for low-voltage power distribution systems requiring switching and fuse-based circuit protection. It combines a fuse connection arrangement with an operating mechanism to support circuit isolation in compatible electrical distribution equipment.
The HR17B series is available in three models: HR17B-160, HR17B-250 and HR17B-400, with rated current options of 160A, 250A and 400A.
Designed to accommodate compatible RT16 and NH fuse links, the HR17B series offers different current ratings and fuse configurations to meet the requirements of industrial electrical installations.
The product features an integrated housing and an operating handle mechanism. Its structure is intended for installation in compatible low-voltage distribution assemblies and electrical equipment.
With a rated voltage of 500/690V and a specified power-frequency withstand voltage of 3000V, the HR17B series provides multiple model options for electrical equipment manufacturers, panel builders and industrial power distribution projects.
Key Features
- Three models available: HR17B-160, HR17B-250 and HR17B-400
- Rated current options of 160A, 250A and 400A
- Rated voltage of 500/690V
- Power-frequency withstand voltage of 3000V
- Compatible with RT16 series fuse links
- Supports different NH fuse link sizes
- Integrated fuse connection and switching arrangement
- Operating handle mechanism
- Designed for compatible low-voltage distribution equipment
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | HR17B Fuse Type Isolating Switch |
| Product Series | HR17B |
| Product Type | Fuse Type Isolating Switch |
| Available Models | HR17B-160 / HR17B-250 / HR17B-400 |
| Rated Voltage | 500/690V |
| Power-Frequency Withstand Voltage | 3000V |
| Rated Current | 160A / 250A / 400A |
| Compatible Fuse Link Series | RT16 |
| Operating Structure | Handle-operated |
Model Specifications
The HR17B series provides three rated current options with corresponding fuse link compatibility.
| Specification | HR17B-160 | HR17B-250 | HR17B-400 |
|---|---|---|---|
| Rated Current | 160A | 250A | 400A |
| Compatible Fuse Link | RT16-00 | RT16-1 | RT16-2 |
| Compatible Fuse Size | NT00 / NH00C | NT1 / NH1 | NT2 / NH2 |
| Rated Voltage | 500/690V | 500/690V | 500/690V |
| Withstand Voltage | 3000V | 3000V | 3000V |
Dimension Figure
The HR17B dimensional drawing illustrates the operating handle arrangement, mounting references and overall installation structure.
The supplied drawing includes the following dimensional references:
| Dimension | Reference Value |
|---|---|
| Overall Length | 445 mm |
| Main Assembly Length | 289 mm |
| Overall Height Reference | 120 mm |
| Additional Height Reference | 31 mm |
The drawing also indicates mounting hole positions and spacing.
Please contact CWNE for detailed model-specific dimensional information before installation, as the original product specification directs buyers to confirm detailed dimensions with the supplier.
Compatible Fuse Links
The HR17B series supports different fuse link configurations according to the selected model:
- HR17B-160: RT16-00, compatible with NT00 and NH00C
- HR17B-250: RT16-1, compatible with NT1 and NH1
- HR17B-400: RT16-2, compatible with NT2 and NH2
Selecting the correct fuse link is important for mechanical compatibility and electrical protection requirements. Always verify the fuse size and rated electrical parameters before installation.
Applications
The HR17B Fuse Type Isolating Switch is intended for compatible low-voltage electrical distribution applications.
1. Low-Voltage Distribution Equipment
Used in compatible distribution assemblies requiring switching and fuse-based circuit protection.
2. Industrial Electrical Cabinets
Suitable for integration into industrial electrical cabinets and power distribution equipment.
3. Power Distribution Systems
Applied in low-voltage electrical installations where fuse-type isolating devices are required.
4. Electrical Switchgear Assemblies
Used in compatible switchgear configurations for electrical circuit isolation and fuse integration.
5. Industrial Control Equipment
Suitable for electrical equipment manufacturers and panel builders sourcing fuse-type switching components.
How to Choose the Right HR17B Model
Selecting the appropriate HR17B model involves checking the rated current, compatible fuse link and installation requirements.
1. Determine the Required Current Rating
Choose from 160A, 250A or 400A according to the electrical system design.
2. Confirm Fuse Link Compatibility
Match the selected model with its corresponding RT16 fuse link and NT/NH fuse size.
3. Check Rated Voltage
The HR17B series has a rated voltage of 500/690V. Confirm compatibility with the intended electrical system.
4. Verify Installation Dimensions
Review the dimensional drawing and request detailed model-specific dimensions from the supplier before planning cabinet installation.
5. Confirm the Required Configuration
Confirm the required switch
FAQ
What is an HR17B Fuse Type Isolating Switch?
It is a low-voltage electrical switching device designed for use with compatible fuse links in power distribution applications.
What models are available in the HR17B series?
The available models are HR17B-160, HR17B-250 and HR17B-400.
What is the rated current range?
The series offers rated current options of 160A, 250A and 400A.
Which fuse links are compatible?
The HR17B series supports RT16-00, RT16-1 and RT16-2 fuse links, depending on the selected model.
What is the power-frequency withstand voltage?
The specified power-frequency withstand voltage is 3000V.
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