NH1S HRC Low Voltage Link
The NH1S HRC Low Voltage Link is designed for overcurrent and short-circuit protection in compatible low-voltage electrical distribution systems. Its ceramic body and metal blade contacts provide a practical construction for installation in compatible NH fuse bases.
With a rated voltage of 500/690 V and a rated current range of 32–250 A, the NH1S model supports electrical protection requirements in industrial and power distribution applications. The correct current rating should be selected according to the circuit design, operating conditions and protection coordination requirements.
Key Features
- Rated voltage of 500/690 V
- Rated current range of 32–250 A
- High breaking capacity under specified operating conditions
- Ceramic body with metal blade contacts
- Dual-indicator fuse-link design
- Designed for compatible NH fuse bases
- Suitable for industrial electrical distribution protection
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | NH1S HRC Low Voltage Link |
| Model | NH1S |
| Rated Voltage | 500/690 V |
| Rated Current | 32–250 A |
| Breaking Capacity at 500 V | 120 kA |
| Breaking Capacity at 690 V | 50 kA |
| Dimension A | 135 mm |
| Dimension C | 68 mm |
| Dimension D | 46 mm |
| Dimension E | 20 mm |
| Dimension H | 58 mm |
Dimension Figure
Other Available Models
Other models listed in the same product range include NH2S and NH3S. Their rated current ranges and dimensions differ from those of NH1S.
| Model | Rated Current | Dimension A | Dimension C | Dimension D | Dimension E | Dimension H |
|---|---|---|---|---|---|---|
| NH1S | 32–250 A | 135 mm | 68 mm | 46 mm | 20 mm | 58 mm |
| NH2S | 80–400 A | 150 mm | 68 mm | 58 mm | 25 mm | 68 mm |
| NH3S | 160–630 A | 150 mm | 68 mm | 80 mm | 32 mm | 82 mm |
The NH2S and NH3S specifications are provided for comparison. Confirm the required model and corresponding electrical ratings before ordering.
Applications
The NH1S HRC Low Voltage Link can be considered for compatible electrical distribution and industrial protection installations, including:
- Low-voltage power distribution systems
- Industrial electrical equipment
- Overcurrent protection circuits
- Short-circuit protection arrangements
Final selection should account for the system voltage, rated current, prospective short-circuit current, fuse characteristics and compatible fuse base.
FAQ
What is the rated current range of the NH1S model?
The stated rated current range is 32–250 A. Select the appropriate rating according to the circuit design and protection requirements.
What is the breaking capacity?
The stated breaking capacity is 120 kA at 500 V and 50 kA at 690 V. Confirm suitability for the prospective short-circuit current of the installation.
Is NH1S compatible with every NH fuse base?
Compatibility should not be assumed. Check the fuse dimensions, contact arrangement and fuse-base specifications before installation.
What information is needed for a quotation?
Provide the required rated current, operating voltage, quantity and intended application. Include the model designation when requesting a quotation.
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