Product Specifications
| Prod Model: |
ZMFK-3 |
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| Usage: |
Household Appliances Relay |
| Theory: |
Voltage Relay |
| Type: |
AC Contactors |
| Size: |
Miniature |
| Phase: |
3 |
| Number Of Pole: |
3 |
| Electricity Type: |
AC |
Product Description
1. Zero cross switching
The basic work principle of compound switch is introduced as follows: The parallel connection between thyristor and magnetic latching relay realizes the voltage zero cross conduction and current zero cross switching off, to enable the compound switch to possess advanctage of the thyristor zero-cross switching operation at the moment of making and breaking. In normal make period. It has no on/off power consumption. Its methods to realize the current zero- cross cut off are that at the time of switching off, the thyristor conducts the zero-cross triggering operation at first at the minute of voltage zero cross. After stablilizing the magnetic latching relay attracts and conducts and in switch off, the magnetic latching relay is cut out first. Then the thyristor conducts the time delay zero-cross switch off operation. In order to realize the current zero-cross cut off operation.
2. Voltage phase failure protection
When the system voltage is supplied under phase failure. The switch refuses the closing operation, after the system is switched on, if the phase failure happens again. The system refuses the switching on operation automatic
3. Under voltage protection
When the voltage is 20% of rated voltage or less than (220v) the switch refuse the close operation. And it will protect by itself. The system automatically monitors the operation state of thyristor and magnetic latching relay, if the system has the trouble, it refuse the making operation and exits from the switch on operation or conducts the breaking operation
4. Power failure protection
After switching on if the power is cut off immediately, it will trip and switch off automatically
5. No harmonic wave production
At the time of conduction, the thyristor conducts the zero cross triggering operation, after delaying relay attracts and conducts, therefore the attraction and conduction of relay can't produce the harmonic wave
6. Low powr consumption
Due to using the magnetic latching relay, the control device consumes the power only at the moment of switching operation, usually it can't cause any power consumption, and due to the small contact resistance of magnetic latching relay, it can't produce the heat, thus it is unnecessary to equip the radiator of fan, to reduce the cost and thoroughly avoid burning the thyristor and damaging other electric appliances running with the system. As as to achieve the aim of saving energy and lowering the consumption
7. Photoelectric isolation between the input signal and compound switch
Strong interference resistance and reliable and safety operation, the products adopt the advanced intelligent control technology and the latest electronic elements, compared with the similar products, It has ultra high performance in the respect of inrush current and relaibility
|
1. ambient temperature: -20~65 degree |
2. relative humidity: 40 degree is 20-90% |
3. frequecny: 50Hz |
|
4. rated voltage: 380/220v 3p 4w AC |
5. Degree of distortion is less than 5% |
6. working power 220v |
|
7perminssible deviation: the synchronous change of three phase voltage is less than ± 20% |
8. number of phase: three phase (connection )and signle phase (Y-connection) |
9. controll capacity: ≤ 30kvar at three phase integrated compensation |
|
10. service life: 500000times |
11. rated current: 45/55A |
12. power consumption ≤ 1.5VA |
|
13. contact voltage drop: ≤ 100mV |
14. contact withstand voltage: ≥ 1600v |
15. response time: ≤ 100ms |
|
16. interval of every making and breaking ≥ 1s |
17. single phase separate compensation: ≤ 10kvar |
18. interval of continuous two making ≥ 60s |
|
19. start up voltage: DC6-24V |
20. input impendence ≥ 6.8k |
21. conduction impendence≤ 0.003Ω |
Zhiming Group Co., Ltd., located along the sea in south zhjiang, wenzhou, liushi. Established in 1991, our factory mainly produces single phase, three phases mechanical electronic type kwh meters; Ge brand meter base, panel meter, low voltage shunt capacitors; High voltage shunt capacitor electronic components and etc.
In March 2001, we had passed ISO9001. "zhiming" brand products are now widely accepted by most clients. On the basis of hi-tech and modern management, our company is robustly developing and glowing up, marketing shares are more and more increased. In order to ensure and improve the quality, we have equipped with modern testing apparatus and excellent production technology and therefore continuously provided, with low price and best quality, dd28 dd17 dd862, dt862 series kwh meters, dds450 single phase electronic meters, ddsy ordtsy 450 electric with prepay fee. Dtsf 450 multi tariff kilo watt hour meter. Ge meter base, amper meter and voltage meter, bsmj low voltage shunt capacitors, bmh high voltage shunt capacitor, power relay, cj19 contactor for switching capacitors, AC contactors, mini circut breaker MCCB. Besides at maximum to meet with domestic marketing, our products are also exported southeast Asia, Russia and etc. Our company devote to building an integrated enterprise combined with tech research, industrial production and trading, on basis of "best quality, satisfactory services, hard research".
Under our topic of "true attitude, creation and innovation, perfect services", we honestly welcome all clients to make mutual development.
