Relay News
Since the power relay plays a very important role in the automation system, its quality, technical performance and economic indicators must be related to the speed of economic construction and the safety of workers, so it must be put forward some basic. requirements.
1，20A contact switching capacity 2，The dielectric withstand voltage between coil and contact is 5kV 3，High sensitivity, power consumption 0.2W 4，UL insulation class: Class F 5，Applicable to household appliances, intelligent furniture, leakage protectors, instruments, communication devices, intelligent remote control systems
Between the induction and execution of power relays and other switching appliances, they are opposed to each other and struggle with each other. This is because for the induction part of an electrical appliance, it is always hoped that its ability to respond to signals is as strong as possible
Subminiature Power Relay Model 932 parameter information： Overall dimensions：18.3*10.2*15.6mm Relay weight:6g Contact form：1A Contact load: 20A 277VAC Coil voltage：3V DC,5V DC,6V DC,9V DC,12V DC,18V DC,24V DC,48V DC Coil resistance (Ω± 10%):0.2W,0.45W between contact coilsvoltage: 5000VAC Between disconnecting contacts voltage: 1000VAC
As can be seen from the various examples mentioned above, any power relay, regardless of its operating principle, structural type, and application situation, is a certain signal (electrical or non-electrical) input according to the outside world. An appliance that controls the "on" and "off" of current in a circuit. This is its commonality. This commonality shows that in order to complete its specific mission, any power relay should have a corresponding induction mechanism that can respond to a certain input signal from the outside world, and an executive function that realizes "on and off" control of the controlled circuit. Corresponding actuator. Since the action of the power relay's actuator requires a certain physical quantity, and the external input signal has two types of electricity and non-electricity, the induction mechanism of the power relay should first have an induction function as follows: Convert the input electricity or non-electricity into a certain specific physical quantity suitable for the action of the actuator.
1，20A contact switching capacity 2，The dielectric withstand voltage between coil and contact is 5kV 3，High sensitivity, power consumption 0.2W 4，UL insulation class: Class F 5，Applicable to household appliances, intelligent furniture, leakage protectors, instruments, communication devices, intelligent remote control systems
In addition, photoelectric, piezoelectric, electrostatic induction, chemical reaction and other principles can be used to make various relays that can respond to other non-electrical quantities, such as photoelectric relays, speed relays, pressure relays, etc. With the rise of electronic technology, a new way has been opened up for the development of the above-mentioned various relays. In recent years, various contactless relays and other semiconductor electrical appliances composed of transistors have been increasing. They are used in conjunction with relays with contacts to learn from each other's strengths and make up for their shortcomings. direction.
Order description of Subminiature Power Relay Model 932 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
A reed power relay composed of a coil and a reed tube is also a special electromagnetic power relay, as shown in Figure 1-7. When the coil is energized, the reed, which is made of magnetic conductive material and acts as a contact, is magnetized, and its free ends form a north pole (N) and a south pole (S) to attract each other, so that the controlled circuit is connected. After the coil is powered off, the reeds are separated under the action of their own elastic force, and the circuit is cut off, so the same control function of the above-mentioned general electromagnetic power relay can also be achieved by using it. Because it has the advantages of high sensitivity, fast action speed, very simple structure, small volume, and long life due to the contact point being sealed in the protective gas, it is more and more widely used in various automatic control systems.
Subminiature Power Relay Model 932 parameter information： Overall dimensions：18.3*10.2*15.6mm Relay weight:6g Contact form：1A Contact load: 20A 277VAC Coil voltage：3V DC,5V DC,6V DC,9V DC,12V DC,18V DC,24V DC,48V DC Coil resistance (Ω± 10%):0.2W,0.45W between contact coilsvoltage: 5000VAC Between disconnecting contacts voltage: 1000VAC