Piezo switches sealed to IP69K

26 November 2008 Switches, Relays & Keypads

By achieving the seal-tight protection class of IP69K, Schurter is extending the spectrum of potential applications for its tried-and-tested PSE family of piezo switches.

The qualification test was carried out using a high-pressure vapour stream at 90 Bar and a temperature of 80°C. The hermetically sealed piezo switches can now be used in areas which are regularly disinfected or cleaned using high-pressure cleaners. This renders them ideal for use in applications exposed to high levels of dirt and grime such as food processing, commercial cooking and transportation.

Besides the lifetime of more than 20 million switching cycles, these switches also reveal a high level of robustness due to their stainless steel or aluminium housing. Standard mounting diameters of 16, 19, 22, 24, 27 and 30 mm are available, while other mounting diameters, materials, colours and shapes are possible, according to individual design requirements.

Point or ring illumination is offered in mounting sizes 22 mm and up. This feature can be used to illuminate the actuating surface in a continuous mode or to display the switch position ON or OFF. Laser lettering is available and performed in-house to minimise lead times. A broad range of standard legends and symbols are available, as are customer-specific inscriptions.

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