Skip to content 
JN15-12/31.5-80 series indoor high voltage grounding switch performance in line with GB1985-2004 “AC high voltage isolation switch and grounding switch” and IEC129 requirements, suitable for 12kV and below AC 50Hz power system, can be used with various types of high voltage switchgear.
Overview
JN15-12/31.5-80 series indoor high voltage grounding switch performance in line with GB1985-2004 “AC high voltage isolation switch and grounding switch” and IEC129 requirements, suitable for 12kV and below AC 50Hz power system, can be used with various types of high voltage switchgear. It can also be used as ground protection for high voltage electrical equipment maintenance. This type of switch can be used with a live display device.
Model Meaning
| J | N | 15 | – | 12 | / | 31.5 | – | □ |
| ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | |||
| Ground switch | Indoor installation | Design sequence number | Rated voltage (KV) | Rated short-time withstand current (KA) | Interphase distance |
Environmental Conditions Of Use
Ambient air temperature: upper limit +40℃ , lower limit -10℃ ;
Sea level: no more than 1000 meters;
Humidity conditions: the average daily relative humidity is not more than 95%, the average monthly relative humidity is not more than 90%;
Seismic sequence: no more than 8 degrees;
Pollution level: Class II.
Main Technical Parameters
| Item | Unis | Argument | ||
| Rated voltage | Kv | 12 | ||
| Rated short-time withstand current(heat stable) | KA | 31.5 | ||
| Rated short circuit holding time | S | 4 | ||
| Rated short-circuit closing current | KA | 80 | ||
| Rated peak withstand current (dynamic stability) | KA | 80 | ||
| Rated insulation level | Rated short-time power frequency withstand voltage | kV | Relative to each other | 42 |
| Rated lightning impulse withstand voltage | kV | Relative to each other | 75 | |
| Mechanical life | time | 2000 | ||
Copper Bar Terminal Diagram
Dimensions And Mounting Dimensions (mm)
| Model | E | F | G | H | D |
| JN15-12/31.5-150 | 150 | 75 | 165 | 535 | 396 |
| JN15-12/31.5-165 | 165 | 75 | 160 | 565 | 426 |
| JN15-12/31.5-210 | 210 | 75 | 160 | 655 | 516 |
| JN15-12/31.5-250 | 250 | 75 | 160 | 735 | 596 |
| JN15-12/31.5-275 | 275 | 75 | 185 | 810 | 646 |
Further information or a personal consultation? Our products and know-how are there to provide solutions.
