Home > Products > Components Of Vitality > Low price China supplier ZN28-12KV Indoor Vacuum Circuit Breaker/electrical circuit breaker
Low price China supplier ZN28-12KV Indoor Vacuum Circuit Breaker/electrical circuit breaker
- 500 Set / Sets per Month
- Qingdao
- T/T
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Product Details
Place of Origin | Shandong, China | Brand Name | GREATWALL | |
Model Number | ZN28 | Type | Vacuum | |
Poles Number | 3 |
Product Description
Overviews
ZN28A-12 series of rated voltage 12/40.5 kV vacuum circuit breaker, three-phase ac 50 hz indoor high voltage switch equipment, is the introduction of Germanys Siemens technology products. The structure of circuit breaker Simple open circuit ability, long service life, operating function is all ready, no explosion danger, convenient maintenance, suitable for power plant, substation and other electric power transmission and distribution system of control or protection switch, especially in open circuit important place of load and frequent operation. Our products comply with GB1984-89 standard for ac high voltage circuit breaker.
Number | Item | Unit | Reference | |||
1 | Rated voltage | KV | 12 | |||
2 | Rated frequency | HZ | 50 | |||
3 | Rated insulation level | 1minPower frequency withstand voltage | KV | 42 | ||
Thunder impulse withstand voltage(peak value) | 75 | |||||
4 | Rated current | A | 630;1250;1600 | 1250;1600;2000 | 2000;2500;3150 | |
5 | Rated short-circuit close current(peak value) | KA | 20 | 31.5 | 40 | |
6 | Rated operation order | off--0.3s on and off--180S-on and off | ||||
7 | Rated short-circuit Breaking current times | times | 30(50) | 30(50) | 20(30) | |
9 | Rated Impulse withstand voltage | KA | 50 | 80 | 100 | |
10 | 4S Heat steady e.c.A | 20 | 31.5 | 40 | ||
11 | all opened and broke time | ms | ≤100 | |||
12 | Mechanical life-span | times | 10000 |
a. Delivery term:
We will delivery for you after you done the full payment within 7 to 20 working days.
b. Payment:
Usually,we accept T/T, irrevocable L/C at sight ,for regular order ,we prefer 50% in advance ,50% against the copy of B/L
1.We have a professional and efficient team. Young R&D team with experienced, our team average age is 13 years and the staff longest experience in the industry field are over xxx years while the shortest one are more than 20 years.
2.Our products manufacturing process are in accordance with GB/T19001-2008 quality management system requirements and technical standards are in accordance with GB11022 / DL404 IEC60694 which could guarantee delivering time & excellent quality for the clients.
3.The price advantage: our company has established complete supplier evaluation & supervision system, strict control of production cost and strive to provide the optimized cost-effective products for clients
4.Professional and timely after-sales service: Based on all products standardized design, we can provide users with the most convenient and fast service, our 24 hours service telephone: 0086-532-80771657.
5.Team trust, cooperation, commitment, loyal customers, strict compliance and deliver on time.
Q: How do you control the quality ?
A: We have QC team comply with TQM,each step is in compliance to the standards,At the same time ,we will take photos and shoot video for you .
Q: What about lead or shipping time?
A: The lead time depends on quantity you ordered ,but generally within 40-50 days upon receipt of advance payment.
Q: How long does it take for me to get the quotation.
A: For customized products, we will quote after you provide the requested product detailes within 48 hours beacuse we need the time to calculate cost, but we will quote the soonest possible. for our standard product posted here we can quote in 24 hours.
Q: Why should I choose your company?
A: We take customers's requirments as our mission,and take each details very carefully. We have about 15 years experience for electric power business. We try to support our customers always,including delivery time,price ,pre-sale,after-sales,though We are not the best,but we are always to improve ourself and meet your needs.Choose us ,will don't make you disappointed.
Contact Us
- Qingdao Yonghuaxu Trading Co., Ltd.
- Contact nameJackie Wang Chat Now
- Phone86-532-80771657
- Address901, Unit 1, Bldg. 2, Lvdao Jiayuan, No. 16, Fuzhou South Road, Shinan Dist.,, Qingdao, Shandong
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