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EAO Introduces Series 56 Universal Switch

Combines visual and tactile feedback with large actuation surface and intuitive symbols
SHELTON, Conn., April 2021– EAO, the expert partner for innovative, intuitive and reliable Human Machine Interfaces (HMIs), offers its new Series 56 Universal Switch that provides reliability in demanding, high-use environments. The switch features an unmistakable, distinctive click when actuated, giving a high level of user confidence.
With a large actuation surface and LED illumination, the Series 56 Universal Switch can be located quickly. The front bezel also includes a range of color options and laser engraved symbols. These features, combined with its unique design and appearance, ensures an extraordinarily high level of user comfort.
The Series 56 Universal Switch is ideal for:
▪     Transit buses and travel coaches
▪     Technology used in buildings and infrastructure
▪     Machinery
A wide range of standard, ISO 7000 or customer-specific symbols can be lasered in black onto the grey anodised symbol insets (not TSI PRM compliant). This versatility, in combination with the range of color options for the front bezel, allows an application-specific design to be produced quickly and easily. Lenses without symbols are also available.
Key advantages of the Series 56 Universal Switch include:
▪     Intuitive operation as a result of visual and tactile feedback
▪     Sealed – both front and back
▪     Large actuation surface and various front bezel colors
▪     Low mounting depth (27 mm incl. M8x1 standard connector)
▪     Long, reliable service life (>5 million cycles of operation)
▪     Standard, ISO 7000 or customer-specific laser symbols
The pushbutton provides a large actuation surface, and the enabled state of the button is signalled by green lighting which is clearly visible, even under the adverse light conditions. When the button is pushed, the user receives multi-sensory feedback that includes an audible and tactile click sound. The clear visible red LED and green illumination offers additional assurance. The standard M8 connector (M8x1, 6-pin) and low mounting depth (27mm) provides easy plug and play installation.
To learn more about the Series 56 Universal Switch, please
About EAO:
Human Machine Interfaces. Since 1947.
EAOAG, a Swiss, family-owned company founded in 1947, has developed into one of the world’s leading manufacturers of high-quality switches, keyboards, sophisticated control elements, and complete HMI control units and HMI Systems. With over 600 dedicated employees, EAO has a global production and distribution network at its disposal. And with production sites in Switzerland, Germany, North America and China, as well as our 11-country sales company and distributors in over 50 countries, we can guarantee global availability.
Your solution-focused expert and partner
EAO does much more than just manufacture individual control elements. As a solution-focused partner, we provide the option of technically and mechanically customizing existing HMI Components in line with our customers’ individual requirements. From simple control elements through to sophisticated HMI Systems, from serial production through to installation – we offer the entire range of HMI services and inspire the confidence of our customers.
For more information, visit our web site at www.eao.comor contact EAO at One Parrott Drive, Shelton, Connecticut 06484; Telephone: 203-951-4600; Fax: 203-951-4601. Send E-mail inquiries to

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