Negotiable
The date of payment from buyers deliver within days
Zhejiang
Long-term effective
2017-10-20 15:04
250
Company Profile
Wenzhou Unisun Electric Co., Ltd.By certification [File Integrity]
Contact:Mr. Rory(Mr.)
Email:
Telephone:
Area:Zhejiang
Address:Zhejiang
Website: http://unisun.shunli-ceramics.com/
A Open/closed auxiliary contacts B Geared motor for closing spring charging C Built-in closing spring charging lever D Mechanical signalling device for circuit-breaker open/closed E Mechanical operation counter F Plug-socket connectors of electrical accessories in the truck G Signalling device for closing springs charged/discharged |
H Service releases I Closing pushbutton L Opening pushbutton M Operating mechanism locking electromagnet N Additional shunt opening release O Transient contact P Contacts for signalling spring charged/discharged |
Circuit-breaker | VD4/Z8 / VD4/ZT8 / VD4/ZS8 | |
Standards | IEC 62271-100 | |
Rated voltage | Ur [kV] | 12, 17.5 / 24 |
Rated insulation voltage | Us [kV] | 12, 17.5 / 24 |
Withstand voltage at 50 Hz | Ud (1 min) [kV] | 28 / 38 / 50 |
Impulse withstand voltage | Up [kV] | 75 / 95 / 125 |
Rated frequency | fr [Hz] | 50-60 |
Rated normal current | Ir [A] | 630 / 1250 / 1600 / 2000 / 2500 / 3150 |
Rated breaking capacity (rated short-circuit breaking current symmetrical) | Isc [kA] | 16 / 20 / 25 / 31.5 / 40 |
Rated short-time withstand current (3s) | Ik [kA] | 16 / 20 / 25 / 31.5 / 40 |
Making capacity | Ip [kA] | 40 / 50 / 63 / 80 / 100 / 125 |
Operation sequence | [O - 0.3 s - CO - 15 s - CO] | |
Opening time | [ms] | 33 ~ 60 |
Arcing time | [ms] | 10 ~ 15 |
Total breaking time | [ms] | 43 ~ 75 |
Closing time | [ms] | 30 ~ 60 |
Operating temperature | [°C] | -5 ~ + 40 |
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