Negotiable
The date of payment from buyers deliver within days
Shanghai
Long-term effective
2017-11-25 01:35
85
Company Profile
Mingde Electrical (Shanghai) Co., Ltd.By certification [File Integrity]
Contact:Miss Candy Fang(Mr.)
Email:
Telephone:
Phone:
Area:Shanghai
Address:Shanghai
Website: http://meletek.dghaofadz.com/
Item | unit | Data |
Rated voltage | kV | 17.5 |
1 min power frequency withstand voltage | kV | 42 |
Lightning impulse withstand voltage | kV | 75 |
Rated frequency | Hz | 50 |
Rated current | A | 1250 |
Rated short-time withstand current | kA | 20,25,31.5 |
Rated peak withstand current | kA | 50,63,80 |
Rated short-circuit breaking current | kA | 20,25,31.5 |
Rated short-circuit closing current | kA | 50,63,80 |
Rated short-circuit duration | S | 4 |
Contact over-travel | mm | 3.5±0.5 |
Clearance between open contacts | mm | 9±1/11±1 |
Average opening speed | m/s | 1.1±0.2 |
Average closing speed | m/s | 0.6±0.2 |
Opening time | ms | 35-60 |
Closing time | ms | 20-45 |
Rated operation sequence | O-0.3s-CO-180s-CO(<40kA)/ O-180s-CO-180s-CO(≥40kA) |
|
Mechanical life | cycles | 10000 |
No. | Rated Voltage(kV) | Rated current(A) | Short-circuit breaking current(kA) | h1(mm) | h2(mm) | h(mm) | A(mm) | B(mm) |
1 | 7.2,12 | 630-1250 | 20-31.5 | 260 | 205 | 622 | 438 | 609 |
2 | 7.2,12,17.5 | 630-1250 | 20-31.5 | 280 | 275 | 637 | 432 | 598 |
No. | Rated Voltage(kV) | Rated current(A) | Short-circuit breaking current(kA) | h1(mm) | h2(mm) | h(mm) | A(mm) | B(mm) |
1 | 7.2,12,17.5 | 630-1250 | 20-31.5 | 260 | 205 | 622 | 438 | 609 |
2 | 7.2,12,17.5 | 630-1600 | 20-31.5 | 280 | 275 | 637 | 432 | 598 |
3 | 7.2,12 | 1250-1600 | 40 | 295 | 310 | 697 | 432 | 598 |
4 | 7.2,12 | 2000 | 31.5-40 | 295 | 310 | 697 | 432 | 598 |
No. | Rated Voltage(kV) | Rated current(A) | Short-circuit breaking current(kA) | h1(mm) | h2(mm) | h(mm) | A(mm) | B(mm) |
1 | 7.2,12,17.5 | 630-1250 | 20-31.5 | 280 | 275 | 637 | 432 | 598 |
2 | 7.2,12 | 1250-1600 | 40 | 295 | 310 | 697 | 432 | 598 |
3 | 7.2,12 | 1600-2500 | 25-40 | 295 | 310 | 697 | 432 | 586 |
4 | 7.2,12 | 3150-4000 | 31.5-40 | 295 | 310 | 697 | 432 | 586 |
5 | 7.2,12 | 3150-4000 | 31.5-40 | 295 | 310 | 733 | 432 | 586 |