ZKC-2-80 automatic protection switch is used for connecting or disconnecting power supply in lines with DC voltage of 28-30V, and has good overload and short-circuit thermal trip devices. It has the advantages of light weight, small size, high sensitivity, and reliable action, and is suitable for line protection of DC electrical equipment.
※ Usage conditions:
Medium temperature: -50 ℃ to 50 ℃.
Atmospheric pressure: ZKC-2 and ZKC-5 switches are between 101Kpa and 5.5Kpa;
The ZKC-10 to ZKC-80 switches have a range of 101Kpa to 12Kpa.
Relative humidity: At 20 ± 5 ℃, the relative humidity is 95% to 98%.
Vibration: The vibration frequency is between 20Hz and 80Hz, and the vibration acceleration reaches 4g.
Impact: The impact acceleration reaches 4g and the speed is 60-100 times/min.
Working voltage: 28-30V.
Dielectric performance: It should be able to withstand a 1000V AC voltage with a frequency of 50Hz for 1 second.
Insulation resistance: Insulation resistance ≮ 20M Ω.
Main technical parameters of ZKC-2-80 series automatic protection switch
Rated working current
| Specification |
ZKC-2 |
ZKC-5 |
ZKC-10 |
ZKC-15 |
ZKC-20 |
ZKC-25 |
| Rated Current |
2A |
5A |
10A |
15A |
20A |
25A |
| Specification |
ZKC-30 |
ZKC-40 |
ZKC-50 |
ZKC-60 |
ZKC-80 |
|
| Rated Current |
30A |
40A |
50A |
60A |
80A |
|
Protective action characteristics:
The product does not operate for a long time under rated current conditions.
The product passes through twice the rated current at room temperature, and the operating time is shown in the table below:
| Model number |
Average time range for automatic collaborative work (s) |
| ZKC-2/F |
25~120 |
| ZKC-5/F |
20~60 |
| ZKC-10/F、ZKC-15/F |
15~45 |
| ZKC-20~30/F |
20~60 |
| ZKC-40/F、ZKC-50/F |
25~80 |
| ZKC-60/F、ZKC-80/F |
20~80 |
Exterior installation dimensions:

