First, the size of the micro switch affects other characteristics
Size matters when choosing a microswitch. Switch size is directly related to its characteristics, including current range, travel, and operating force; applications that require higher current generally require larger switches, and the smaller the switch size, the smaller the travel and the current that can be interrupted; in addition, the switch The external dimensions also affect the operating force. We should also pay attention to the differential travel of the switch - the distance between the trip position of the switch and the reset position, the threshold value of which will vary depending on the application. Gangyuan Electronics, specializing in the production of switches for 23 years, has a variety of sizes and specifications to meet your diverse needs. Gangyuan Electronics, specializing in the production of switches for 23 years, has a variety of sizes and specifications to meet your diverse needs.
Second, understand the electrical requirements
Microswitches are typically capable of breaking currents from 5mA/5V DC to 25A/250V AC, engineers must know the current and voltage ratings (AC or DC) required for a specific application in order to select the appropriate switch; in addition to In addition to load requirements, engineers must select the appropriate circuit.
Environmental requirements have a great influence on the selection of micro switches, especially in high reliability and critical applications such as industrial control and medical equipment. Understand the environmental conditions of the application, including contaminants in the air that may enter the switch, the liquid in which the switch is located, and operating temperature requirements. For applications under harsh environmental conditions, it is necessary to choose a sealed switch with a wide operating temperature range; at the same time, it should be noted that the protection level of the switch should be at least IP67 to prevent liquid intrusion.
Fourth, clarify the requirements for working life
Switch reliability is critical. Different switches have different contact materials, housings and terminals to meet the electrical and mechanical life requirements of different applications; as for the slight price difference between different quality switches, you need to consider the total cost of use. Because you're not only paying for the switch, you're also paying for the long-term, trouble-free operation of the switch. In many cases, the additional cost of using a more reliable switch is offset by a lower warranty cost during use.
V. Certification requirements for inspection agencies
Choosing switches that meet various international electrical requirements can help you simplify product design for different regions. Some major standard certifications include UL certification in the United States, cUL certification or CSA certification in Canada, ENEC certification in Europe, and CQC certification in China. Gangyuan Electronics has passed ISO9001 quality management system certification, ISO14001 environmental system certification, OHSA18001 occupational health and safety management system certification, and TS16949 quality system certification. In the production and operation activities, all employees participate in the prevention and control of pollution, waste reduction and emission reduction, and provide green products that meet environmental protection (ROHS) standards, and have been selected into the China and the world's famous products list, and obtained the "Quality Management and Quality Trustworthy Products of the Ministry of Electronics Industry of China". ” title, some safety products have international certifications such as UL in the United States, TUV in Germany, CSA in Canada, and VDE in Europe.
