First, clarify the environmental requirements for use

Temperature conditions:
If it is used in a high temperature environment, such as the control circuit near some industrial furnaces, it is necessary to choose a push button switch that can withstand the corresponding high temperature. Its internal materials and insulating parts need to have good thermal stability to ensure that it will not be deformed or damaged at high temperatures, resulting in malfunction. In low temperature environments, such as when some outdoor electrical equipment is used in cold winter, it is necessary to ensure that the switch can work normally and will not cause problems such as embrittlement and poor touchpoint contact due to low temperatures. Generally, the switch is required to be able to adapt to a wide temperature range, such as – 20 ° C to 80 ° C or even wider temperature ranges.

Humidity conditions:

In humid environments, such as bathrooms, electrical equipment control switches around swimming pools, or outdoor electrical control cabinets in some southern areas with high humidity, it is necessary to choose a push button switch with good moisture resistance. This usually means that its sealing performance is better to prevent water vapor from entering the interior and causing rust, short circuit, etc. The shell and internal structure should have a certain waterproof vapor erosion ability. You can check whether the product has the relevant waterproof and dustproof grade certification, such as IP65 (dustproof and can prevent the intrusion of sprayed water) and above will be more suitable.

Electromagnetic environment:
If it is used in places with strong electromagnetic interference, such as around some large electrical equipment, near communication base stations, etc., a metal button switch with good electromagnetic shielding ability should be selected. The metal shell itself has a certain shielding effect. At the same time, the internal circuit design and component layout should also be able to effectively reduce the influence of external electromagnetic fields on its signal transmission and touchpoint switching, ensuring stable and accurate switch operation. Check the product manual for the introduction of electromagnetic compatibility (EMC) indicators.

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