Relay News
Order description of magnetic latching relay model 973L 1) When it is used in a polluted environment (including H2S, SO2, NO2, and other dust pollutants), it is recommended to select plastic products and verify them in actual use; 2) After the relay is installed into the PCB board, the whole board needs to be cleaned. Contact our company in time to confirm the appropriate welding method and product specification; 3) For the application scenarios where capacitive load, lamp load and motor load lamps will produce high surge current at the moment of relay connection, it is recommended to use
1，Subminiature high power magnetic holding relay 2，16A contact switching capacity 3，Coil low power consumption: Single coil magnetic holding: 0.36w Double coil magnetic holding: 0.72w 4，It is suitable for low-power scenes, smart homes, smart IOT, wall switches, smart meters and other control systems
Magnetic Latching Relay Model 973L parameter information： Overall dimensions：19.0*15.2*15.8mm Relay weight:9g Contact form：1A,1C Contact load: 16A 250VAC Coil voltage：3V DC,5V DC,6V DC,9V DC,12V DC,18V DC,24V DC Coil resistance (Ω± 10%):0.36W between contact coils voltage: 1500VAC Between disconnecting contacts voltage: 750VAC
Product features of magnetic latching relay model 973L 1，Subminiature high power magnetic latching relay 2，16A contact switching capacity 3，Coil low power consumption: Single coil magnetic holding: 0.36w Double coil magnetic holding: 0.72w 4，It is suitable for low-power scenes, smart homes, smart IOT, wall switches, smart meters and other control systems
Closing the power relay contacts is not an easy task. Because when the dynamic and static power relay contacts collide, there will be no mechanical wear, and the power relay contacts will bounce or bounce back. When it bounces, a series of short electric or sparks will be generated, which will make the circuit unable to be connected accurately and cause high-frequency interference. In severe cases, the power relay contacts will be burned or even a fusion welding accident will occur. There will be a bounce, which will drive the power relay contact to bounce back, and the distance will increase, and the impact will be more serious.
1，Subminiature high power magnetic holding relay 2，16A contact switching capacity 3，Coil low power consumption: Single coil magnetic holding: 0.36w Double coil magnetic holding: 0.72w 4，It is suitable for low-power scenes, smart homes, smart IOT, wall switches, smart meters and other control systems
Experiments have shown that when the current disconnected by the relay contacts is small, there will not be a large amount of gas decomposition and arcing between the relay contacts. However, if the inductance in the circuit is large (usually there is always a certain inductance in the circuit), a high overvoltage will appear on the inductance when it is disconnected, and it will be added to the relay contact gap together with the power supply voltage. If this voltage is large enough (greater than 270~300 volts), it will cause the relay contact gap just separated by a little distance to break down and discharge. Due to the small energy of the power supply, this discharge cannot develop into an arc and disappear immediately, which is called "spark discharge", as shown in Figure 2-4.
Soldering conditions of magnetic latching relay model 973L Automatic soldering260 ± 5 ° C 3-5 seconds (SEC) Solder resistance260 ± 5 ° C for 10 seconds and 350 ± 5 ° C for 3 seconds. After being placed in normal temperature and humidity for 2 hours, the structure and characteristics are normal Overall dimension of magnetic latching relay model 973L Remarks: the size of the lead out leg is the size before pre welding. The dimension tolerance of mounting hole is ± 0.10mm.The overall dimension of the product is not marked with dimensional tolerance. When the overall dimension is ≤ 1mm, the tolerance is ± 0.2mm; When the overall dimension is between 1~5mm, the tolerance is ± 0.3mm; When the overall dimension is >5mm, the tolerance is ± 0.4mm. Order description of magnetic latching relay model 973L 1) When it is used in a polluted environment (including H2S, SO2, NO2, and other dust pollutants), it is recommended to select plastic products and verify them in actual use; 2) After the relay is installed into the PCB board, the whole board needs to be cleaned. Contact our company in time to confirm the appropriate welding method and product specification; 3) For the application scenarios where capacitive load, lamp load and motor load lamps will produce high surge current at the moment of relay connection, it is recommended to use AgSnO2 material contacts; 4) If customers have any special requirements, they can contact our company to select the corresponding product model according to the characteristics after review
In production or daily life, we often use certain electrical appliances such as knife switch power relays, contactors, etc. to disconnect the circuit, and we often observe such a phenomenon when disconnecting the circuit: a dazzling spark appears between the contacts, Sometimes it is fleeting, sometimes it lasts for a certain period of time. This is what we usually call a "spark" or "arc". Its appearance will seriously affect the normal breaking of contacts, reduce its service life, and even cause more serious accidents. Therefore, we must carefully analyze the characteristics and laws of its production and development in order to try to eliminate it.
Magnetic Latching Relay Model 973L parameter information： Overall dimensions：19.0*15.2*15.8mm Relay weight:9g Contact form：1A,1C Contact load: 16A 250VAC Coil voltage：3V DC,5V DC,6V DC,9V DC,12V DC,18V DC,24V DC Coil resistance (Ω± 10%):0.36W between contact coils voltage: 1500VAC Between disconnecting contacts voltage: 750VAC