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NKZ1 Series Cam Switch Rotary Changeover Switch 20A Universal Transfer Switch
NKZ1 Series Cam Switch Rotary Changeover Switch 20A Universal Transfer Switch
Product Description:
The NKZ1 series universal transfer switch is suitable for use in circuits with an alternating current frequency of 50 Hz or 60 Hz and a voltage up to 415 V AC, or a direct current voltage up to 220 V DC. This switch can be used to switch electrical control circuits and electrical measurement instruments, such as electromagnetic coils, electrical measuring instruments, capacitor banks, and so on. It can also be used to directly control small-capacity three-phase squirrel-cage induction motors.
The usage categories: AC-15,DC-13.
Meet the standard: GB/T14048.5,IEC 60947-5-1.
Product Feature:
The NKZ1 series universal transfer switch is manually operated cam-type switch, consisting of three main parts: the contact system, the positioning system, and the mounting system. It uses a rear panel wiring method, which makes wiring and maintenance convenient. The installation module integrates various installation dimensions and is separated from the main body, making installation and replacement easier. The contact system and positioning system include the dust-proof design, enhancing the environmental adaptability of the product. And the switch is characterized by reliable overall performance, compact size, and attractive appearance.
Product Specification:
| Technical paramenters |
Model |
| NKZ1-20 |
| Rated Insulation Voltage Ui(V) |
690 |
| Rated impulse withstand voltage Uimp(kV) |
6 |
| Agreed thermal current Ith(A) |
20 |
| Rated working voltage Ue(V) |
AC220/240 AC380/415 DC220 |
| Rated working current le (AC-15)(A) |
4 3 |
| Rated working current le (DC-13)(A) |
0.27 |
| Protection rating |
IP20(touch points),IP40(front installation surface) |
| Wiring installation method |
Rear panel wiring,screw mounting |
Operating Conditions and Environmental Suitability:
●Ambient temperature is -5℃~+40°C, the average temperature during 24 hours couldn't exceed +35°C.
●Altitude: ≤2000m.
●Atmosphere condition:
1.Humidity: Relative humidity of the atmosphere couldn't exceed 50% when the highest temperature is +40°C; much higher relative humidity is allowable under the condition of lower temperature, for example, when the temperature reaches +20°C, the relative humidity is up to 90%, taking into account the condensation that may occur on the product surfaces due to temperature changes.
2.Pollution grade: 3.
●Installation category: III.
Usage and Maintenance:
●Check Switch Positions: Verify that the switch contacts' open and closed positions match the operational diagram or instructions provided.
●Inspect Wiring: Ensure all wiring connections are correct. Test the switch several times without power to confirm it operates as required before putting it into actual service.
●Regular Maintenance:
1.Frequency: Perform maintenance every six months or so.
2.Cleaning: Remove any dust or debris that may have accumulated.
3.Tightening: Tighten any loose screws or fasteners.
4.Inspection: Carefully inspect the switch's exterior for any signs of damage or wear. If the switch is severely damaged, stop using it immediately.
By following these guidelines, you can ensure the proper functioning and longevity of the switch.
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