Product Specifications
| Prod Model: |
ZN12 (ZN72) -40.5 |
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| Arc-extinguishing Medium: |
Vacuum |
| Breaking Capacity: |
High Voltage Circuit Breakers |
| Operation: |
Electric Type |
| Installation: |
Fixed |
| Speed: |
Normal Type Circuit Breaker |
| Structure: |
Conventional Circuit Breaker |
Product Description
ZN12 (ZN72) -40.5 Indoor Vacuum Circuit Breaker 35KV three-phase AC 50Hz applied to power system, the circuit breaker for the ceramic structure, using the longitudinal magnetic field contacts, is small, the proliferation of breaking arc generated when current distribution in the contact on the same local melting phenomenon does not occur, but also has a low arc energy voltage (20-200V) and low chopping current (4-5A), and operate with high reliability organizations.
The circuit breaker with spring energy storage sector, can exchange energy storage, or DC operation, can also be used manually. The circuit breaker uses a special contact material, so interrupter high breaking capacity, and has a long electrical life.
The switch of simple structure, open high capacity, long life operation of fully functional no explosion risk, maintenance is simple, suitable for power plants, substation control and distribution system, protection switching, particularly suitable for heavy duty and frequent breaking operation place.
| No | Item | Unit | Technical parameters |
| 1 | Rated voltage | KV | 40.5 |
| 2 | Rated current | A | 1250 | 1600 | 2000 |
| 3 | Rated short-circuit breaking current | KA | 20 | 31.5 | 25 | 31.5 |
| 4 | Dynamic current (peak) | KA | 50 | 80 | 63 | 80 |
| 5 | 4S thermal current | KA | 20 | 31.5 | 25 | 31.5 |
| 6 | Rated short circuit making current (peak) | KA | 50 | 80 | 63 | 80 |
| 7 | Rated short-circuit current breaking times | Time | 20 |
| 8 | Rated operating sequence | | 0-03s-Co-180s-Co |
| 9 | Rated insulation level | 1min power frequency withstand voltage | KV | 95 |
| Lightning impulse withstand voltage (peak) | 185 |
| 10 | Mechanical life | Time | 10000 |
| 11 | Rated single capacitor device ON-OFF current | A | 630 |
| 12 | Rated single back-to-back capacitor device current | A | 400 |
| 13 | Rated voltage electrical energy storage | V | AC,DC:110;220 |
| 14 | Energy Storage Power Rating | W | 275 |
| 15 | Electrical Energy Storage Energy Storage time | S | ≤15 |
| 16 | Hop Tripping coil rated voltage | V | AC,DC:110;220 |
| 17 | Hop Tripping coil rated current | A | 1.91(AC),0.89(DC) |
| 18 | Over-current tripping device rated current | A | 5 |
| 19 | Contactor opening distance | MM | 25±2 |
| 20 | Contactor Contact trip | MM | 6±2 |
| 21 | At the different period of three consistency | MS | ≤2 |
| 22 | Contact closing bounce time | MS |
≤3 |
GHORIT Electric Equipment Co. Ltd. Zhejiang established in 2000, is a large-scale high and new-tech enterprise specialized in researching, developing, producing, marketing and servicing. The leading products include vacuum circuit breaker, High voltage and Medium Frequency Capacitor, high voltage load disconnecting switches and other high & low voltage electrical component. The enterprise has Shanghai and Zhejiang two production base, take up 26000 square meter, and more than 200 staff, fixed assets 60 million, annul sales turnover up to 1 billion.
Ghorit has passed the ISO9001 Quality Management System Certification, CCC and European Economic Community product Safe Qualified Symbol CE. The enterprise own advance production line and test line for circuit breaker and other various advance production and test facilities about 60 sets, make sure all technical data keep on database from begin produce to leaving-factory. Establish advance ERP network management system and computer-aided design system. With rich technical research and development strength, advanced production check-out facility, exquisite production workmanship, we win confidence by our customer. Ghorit is award star enterprise, advance enterprise, the top 100 enterprise of tax and etc.
On the concept of "professional, innovation", the enterprise has a united, high specialized quality, skilled and management team. The enterprise purpose is " our work standard and pursuit is meet the customers demand and expectation" with first-class management, first-class technology, first-class facilities, first-class staff, which assure Ghorit become you best cooperation partner.
