Function and Application
NF1 load switches are suitable for AC 50Hz or 60Hz, voltage up to 690V electrical circuits. They are widely used in the power distribution systems and automation systems of construction, power, petrochemical, and other industries. They are mainly used as main switches for machine tools, fans, and pumps, and can also be used as start-stop switches for small-capacity motors. Due to the isolation function, the load switch can serve as an isolating switch to isolate the de-energized part from the energized part and create a clear break point, to isolate faulty equipment or perform power-off maintenance.
Detailed Parameters
| Parameter Category | Parameter Item | Parameter Value |
|---|
| Technical Parameters | Model Specification | NF1-32 |
| | NF1-40 |
| Rated Insulation Voltage Ui | 800 V |
| Rated Impulse Withstand Voltage Uimp | 6 kV |
| Pole Number | 3P, 3P+N |
| Rated Conventional Heating Current Ith | 32 A |
| | 40 A |
| Rated Operating Voltage | AC220/240 V |
| | AC380/415 V |
| | AC660/690 V |
| Rated Operating Current (AC-22A) | 32 A |
| | 32 A |
| | 32 A |
| | 40 A |
| | 40 A |
| | 40 A |
| Rated Operating Current (AC-23A) | 32 A |
| | 32 A |
| | 16 A |
| | 40 A |
| | 40 A |
| | 25 A |
| Protection Level | IP20, IP65 (with Protective Enclosure) |
| Wiring Installation Method | Front Panel Wiring, Screw or Rail Mounting; Rear Panel Wiring, Screw Mounting |
| Accessories | Wire Terminal Cover, Lock, Cable Waterproof Connector |
