Commonly used proximity switches NCN15-30GM40-NO are commonly used in industrial settings, including eddy current and capacitive proximity switches. Because these two types of proximity switches have higher environmental requirements. When the tested object is a conductive object or an object that can be fixed on a metal object, eddy current proximity switches are generally chosen because of their response frequency, good resistance to environmental interference, wide application range, and wide range. If the measured object is non-metallic (or metallic), liquid level, powdery substance, plastic, etc. A capacitive proximity switch should be selected. This type of switch has a response frequency but good stability. Environmental factors should be considered during installation. If the measured object is a magnetic material or if magnetic steel is buried inside the measured object to distinguish it from objects moving together, a Hall proximity switch should be used. In environments with good environmental conditions and no dust pollution, photoelectric proximity switches can be used. The photoelectric proximity switch has almost no impact on the measured object during operation. Therefore, it is widely used in both high demand transmission machines and Yancao machinery. In anti-theft systems, automatic doors typically use pyroelectric proximity switches, Chaoshengbo proximity switches, and microwave proximity switches. Sometimes, in order to improve recognition reliability, the above-mentioned proximity switches are often used in combination. Regardless of the type of proximity switch selected, attention should be paid to the requirements for various indicators such as working voltage, load current, response frequency, detection distance, etc. 2、 Technical parameters: 1. Body material: A B.S2、 Filler: Epoxy3, high-power: 10W4, large switching voltage: 100 VDC5, large switching current: 0.6, small breakdown voltage: 220 VDC7, large load current: 1.0A8, large grounding resistance: 100 mΩ 9. Small insulation resistance: 108Ω 10. Release time: 0.1 ms Max11, induction time: 0.4 ms Max2. For different materials of detection bodies and detection distances, different types of proximity switches should be selected to ensure better performance in the system. Therefore, the following principles should be followed in the selection: 1.1. When the detection body is made of metal materials, frequency oscillation type proximity switches should be selected, which are sensitive to detection of iron nickel and A3 steel. The sensitivity of aluminum, brass, and stainless steel detection bodies is high. 1.2. When the detection body is made of non-metallic materials, such as; Capacitive proximity switches should be used for materials such as wood, paper, plastic, glass, and water. 1.3. When metal and non-metal materials need to be detected and controlled remotely, photoelectric proximity switches or Chaoshengbo proximity switches should be selected. 1.4. When the detection body is metal, if the detection sensitivity is required from time to time, Jiege's magnetic proximity switch or Hall type proximity switch can be selected& nbsp; Commonly used proximity switch NCN15-30GM40 NO;