| Type: | High-voltage |
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| Structure: | Three-column Disconnector |
| Installation: | Indoor High-voltage |
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This is a new type of earthing switch designed and developed by our company. With simplified and compacted structure, it's easy to be installed and operated. The patented fixing contact could induce the smooth action of the moving blade during closing and its bumps help enhance and keep the contact pressure. All products pass pressure test before instaling and it passed type test as per technical requirements indicted by the standard of GB 1985-2014 Medium Voltage AC Disconnector and Earthing Switch.
| Type | Rated Voltage(kV) | thermal steady current(kA) | thermal steady time(S) | Dynamic steady current (kV) | Short circuit making current(kA) | Phase distance(mm) |
| JNH1-12 | 12 | 25 | 4 | 63 | 63 | 150-275 |
| 31.5 | 4 | 80 | 80 | |||
| 40 | 4 | 100 | 100 | 210-275 | ||
| JNH1-17.5 | 17.5 | 25 | 3 | 65 | 65 | 170-275 |
| 31.5 | 3 | 82 | 82 | |||
| 40 | 3 | 104 | 104 | 210-275 | ||
| JNH1-24 JNH1-27 |
24/27 | 25 | 4 | 65 | 65 | 220-275 |
| 31.5 | 4 | 82 | 82 | |||
| JNH1-40.5G | 40.5 | 25 | 4 | 63 | 63 | 300-360 |
| 31.5 | 4 | 80 | 80 | |||
| JNH4 | 12 | 50 | 3 | 125 | 125 | 210-275 |
| 17.5 | 50 | 3 | 130 | 130 | ||
| 24 | 40 | 3 | 100 | 100 | 275 | |
| 50 | 3 | 125 | 125 |
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