NT1 / NH1 Knife Type Fuse Link
The NT1 / NH1 knife type fuse link is intended for overload and short-circuit protection in low-voltage electrical circuits. It is available in rated currents from 63A to 250A and is designed for use with a matching NH1 fuse base.
| Item | Details |
| Model | NT1 / NH1 |
| Rated Voltage | AC 500V / 690V |
| Rated Current | 63A-250A |
| Utilization Category | gG |
| Rated Breaking Capacity | 120kA at 500V / 50kA at 690V |
| Standard | IEC 60269-2 / HD 60269-2 |
Product Description
The NT1 / NH1 knife type fuse link is intended for overload and short-circuit protection in low-voltage electrical circuits. It is available in rated currents from 63A to 250A and is designed for use with a matching NH1 fuse base.
Typical Applications
- Low-voltage distribution equipment
- Industrial switchboards
- Cable and feeder protection
- Fuse switch disconnectors
Standard
IEC 60269-2 / HD 60269-2
Certification availability depends on the selected model and rating.
Compatible Base
Compatible with the corresponding NH1 fuse base.
Product Dimensions
Main Dimensions
| a | b | c | e1 | e2 | f | g |
| 135 | 40 | 21 | 48 | 48 | 68 | 12 |
Unit: mm
Product Specifications
| Model | Equivalent Model | Rated Current (A) | Rated Voltage (V) | Rated Dissipated Power (W) | Rated Breaking Capacity (kA) |
| NT1 | NH1 | 63 | 500 / 690 | 7.4 | 120 / 50 |
| NT1 | NH1 | 80 | 500 / 690 | 8.4 | 120 / 50 |
| NT1 | NH1 | 100 | 500 / 690 | 12.3 | 120 / 50 |
| NT1 | NH1 | 125 | 500 / 690 | 13.7 | 120 / 50 |
| NT1 | NH1 | 160 | 500 / 690 | 16.6 | 120 / 50 |
| NT1 | NH1 | 200 | 500 / 690 | 21.2 | 120 / 50 |
| NT1 | NH1 | 225 | 500 / 690 | 22.3 | 120 / 50 |
| NT1 | NH1 | 250 | 500 / 690 | 23.0 | 120 / 50 |
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