Waterproof tactile switches, as the name suggests, are tact switches that can be operated with wet hands, or can work properly in a humid environment. There are many kinds of waterproof switch. And this article focuses on the waterproof light touch switch identification grade.
The main evaluation standard for the waterproof performance of the waterproof tactile switch is based on the grade standard of the waterproof performance formulated by the International Electrotechnical Commission (IEC). The identification mode is IPXX, such as IP66 and IP67 and so on. And the IP is short for Ingress Protection.
IP67 is followed by two digits, the first is the solid state protection level, ranging from 0 to 6, the lowest is no special protection to people or objects outside, the highest is completely prevent outside objects and dust invasion; The second is the liquid protection level, which ranges from 0 to 8, with a minimum of 0 indicating no special protection against water or moisture and a maximum of 8 protecting against continuous immersion in water with a depth of more than 1 meter. In both cases, the higher the number, the stronger the ability.
Again, take IP67 as an example, which indicates that the protection level of this tact switch is, dustproof level 6, waterproof level 7. It indicates that this tactile switch can prevent dust from entering (overall prevent contact, prevent dust from penetrating); Protection against short immersion (anti-immersion), 30 minutes in water up to 1 m deep.
It is important to note that not all systems that provide a high level of protection are problem-free. Because high waterproofing usually requires a completely closed installation, this usually causes heat dissipation problems. System errors caused by overheating can occur. So additional cooling devices are needed.
This also shows that , it is necessary to consider the working environment and the use environment to achieve the best use state when designing and installing electronic accessories.
Post time: Apr-23-2022