Application
J5 series AC Vacuum Contactor is designed for long-distance making and breaking in circuit, frequency starting and controlling AC motor in the power system with AC 50 Hz-60Hz, rated operating voltage to 1140V. It also can be formed with thermal relay and all kinds of protection apparatus, as electromagnetic starter, especially applies to explosion electromagnetic starter and all sorts of power control equipment. It may apply to the department of mine, metallurgy, petroleum, chemical industry, power, communication transportation and so on.
Normal working and installation conditions
Ambient temperature: -25℃~+40℃
Altitude: ≤2000
Humidity: Relative humidity on daily average less than 95%, on monthly average less than 90%.
Water vapor pressure on daily average less than 2.2kPa, on monthly average less than 1.8kPa.
No normally violent vibration.
Main technical parameter
Model | J5-160/1140 | J5-250/1140 | J5-400/1140 | J5-630/1140 | ||
Main | Rated working current (Ie) | 80A, 125A, 160A | 200A, 225A, 250A | 400A | 500A, 630A | |
Rated working voltage (Ue) | 1140V | |||||
Rated frequency (fr) | 50/60Hz | |||||
Rated making capacity (100 times) | 10Ie | |||||
Rated breaking capacity (25 times) | 8Ie | |||||
Limit breaking capacity (3 times) | 2000A | 4500A | 4500A | 6000A | ||
Withstand Voltage (power frequency) | 4200V | |||||
Control circuit | Rated voltage (Us) | AC. 220/380V, DC. 110/220V, or other Customerized control voltage | ||||
Withstand Voltage (power frequency) | 2000V | |||||
Rated power (Ps) electric holding | absorbing | ≤600VA | ||||
holding | ≤50VA | |||||
Auxiliary circuit | Form | 2a+1b | 4a+3b | |||
Withstand Voltage (power frequency) | 2500V | |||||
Rated value | AC 380V/5A, DC 380V/1A | |||||
Main | fixed - moving contact distance | 1.8±0.2mm | 2.0±0.2mm | |||
Overtravel | 1.0±0.2mm | |||||
Final pressure | 30±3N | 78±7.8N | 117.6±11.8N | 196±19.6N | ||
Rated operating frequency | Long-term (AC-3) | 600 times/h | ||||
Long-term (AC-4) | 300 times/h | |||||
Short-term | 3000 times/h | 2000 times/h | ||||
Mechanical endurance | 3,000,000 times | |||||
Electrical endurance | AC-3 | 600,000 times | ||||
AC-4 | 60,000 times | 20,000 times | 5,000 times | |||
Mechanical characteristics | Closing time | ≤200ms | ||||
Original opening time | ≤160ms | |||||
3-phase synchronism | ≤3ms | |||||
Closing tripping | ≤10ms | |||||
Vacuum contactors utilize vacuum bottle encapsulated contacts to suppress the arc. This arc suppression allows the contacts to be much smaller and use less space than air break contacts at higher currents. As the contacts are encapsulated, vacuum contactors are used fairly extensively in dirty applications, such as mining.
Vacuum contactors are only applicable for use in AC systems. The AC arc generated upon opening of the contacts will self-extinguish at the zero-crossing of the current waveform, with the vacuum preventing a re-strike of the arc across the open contacts. Vacuum contactors are therefore very efficient at disrupting the energy of an electric arc and are used when relatively fast switching is required, as the maximum break time is determined by the periodicity of the AC waveform.
Overall and installation dimension
About us
● Yueqing Winston is a known brand, a leading manufacturer and exporter for off-grid which has been this industry for 13 years. Our factory was established in 2005. We provide power solution service to our clients. All of our customers are located all over the world and they are very satisfied due to our excellent price-quality ratio.
● With special cultivation of employees, high investment on production facilities and R&D as well as a wide range of products, we advocate "technology innovation, business honesty and trust and quality first" as our basic principle, trying to develop into a world-class electrical manufacturer with constant efforts.
● Five layers corrugated board + industrial foam packaging, installation to reach your hands
● The company's products have a wide range of applications.Including printing machinery, packaging machinery, winding machinery, film blowing machine, lathe, grinder, etc.Therefore, it is deeply loved by customers.
FAQ
1. Our all items are 100% authentic ,please provide details of the address before purchase , So we can calculate the shipping discounts and the best transportation.
2. According to the customer's requirement ,different specifications of the items can be mixed shipments and lower freight.
3. Only wholesale, if require samples, please contact us,If you have any questions or suggestions. Please Contact us freely.
We have to sell items with top quality because we want to keep every customer as our long-term business partner.
We have to set low competitive prices because we need to attract buyers to this new store.
We will ship your items on time when you place your order . We know time is important for you.
After Delivery
If you are satisfied with the packages you receive, DO please be kind to leave us positive feedback. Every positive feedback from you is important to increase our credit score. Thus it is important to our company. We will be grateful for you doing so.
