Ningbo Tianan (Group) Co.,Ltd.
| Payment Terms | L/C, T/T |
| Packaging Details | 5000 Sets/ Year |
| Type | With lamp |
| Color | Black |
| Rated voltage | 12kV |
| Rated short duration | 2 s |
| Rated peak withstand current | 80 kA |
| Brand Name | Tianan |
| Model Number | JN15-12 / 31.5 |
| Certification | ISO |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C, T/T | Packaging Details | 5000 Sets/ Year |
| Type | With lamp | Color | Black |
| Rated voltage | 12kV | Rated short duration | 2 s |
| Rated peak withstand current | 80 kA | Brand Name | Tianan |
| Model Number | JN15-12 / 31.5 | Certification | ISO |
| Place of Origin | CHINA | ||
| High Light | JN15-12 / 31.5 ，IEC Earthing Switch ，12kV Earthing Switch | ||
JN15-12 / 31.5 series indoor AC high voltage grounding switch
1. Product Description
JN15-12 / 31.5 series indoor AC high voltage grounding switch, is the introduction of foreign technology and products developed an internationally advanced level, its performance in line with the requirements of IEC, with advanced design, reliable technical performance, simple structure, easy installation It can be used with various types of high voltage switchgear package, while also as a high-voltage electrical equipment overhaul ground.
2. Type meaning
J N 15 - 12 / 31.5 - 0
J: AC high voltage grounding switch
N: Indoor
15: Reference Design
12: Rated voltage (KV)
31.5: 4s rated short time withstand current (KA)
0 : center distance between the poles
3. Grounding switch Technical Data
| Model Specifications | JN15-12 / 31.5 - 210 |
JN15-12 / 31.5 - 230 |
JN15-12 / 31.5 - 250 |
JN15-12 / 31.5 - 275 |
| Rated voltage(KV) | 12 | 12 | 12 | 12 |
| 44s thermal current(KA) | 31.5 | 31.5 | 31.5 | 31.5 |
| Dynamic current (peak)(KA) | 80 | 80 | 80 | 80 |
| Closing current (peak)(KA) | 80 | 80 | 80 | 80 |
| Rated insulation level(KV) | 42/75 | 42/75 | 42/75 | 42/75 |
| center distance between poles mm | 210 | 230 | 250 | 275 |
| Closing speed m/s | >= 6 | >= 6 | >= 6 | >= 6 |
| The main circuit contact resistance(μΩ) | < 120 | < 120 | < 120 | < 120 |
4. Shape and size of installation
| Type | L | E | C |
| JN15-12/31.5-210 | 655 | 210 | 516 |
| JN15-12/31.5-230 | 710 | 230 | 555 |
| JN15-12/31.5-250 | 760 | 250 | 596 |
| JN15-12/31.5-275 | 810 | 275 | 646 |
1. Brace
2. Bracket Insulator
3. static contact
4. manipulate Edition
5. Turn the spring
6. Spindle
7. confluence brass
8. soft connection
9. Adjust positioning ring
10. The disc spring
11. Levers
12. The movable contact
6. Ordering Information
The grounding switch wide application, please include the model and user specifications, crank arm mounting position (left or right) is charged with the display device.
Company Details
Business Type:
Manufacturer,Exporter,Trading Company,Seller
Year Established:
1969
Total Annual:
250000000-300000000
Employee Number:
3000~3500
Ecer Certification：
Verified Supplier
Ningbo Tianan (Group) Co, Ltd is a famous leading influential enterprise of the power transmission equipment manufacturing in China.It was founded in 1969,currently under the group, we have 1 national-level R&D center, 2 provincial-level R&D center, 10 professional companies, 70 sales office... Ningbo Tianan (Group) Co, Ltd is a famous leading influential enterprise of the power transmission equipment manufacturing in China.It was founded in 1969,currently under the group, we have 1 national-level R&D center, 2 provincial-level R&D center, 10 professional companies, 70 sales office...
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