Command and Indicator Switches meet ATEX directive.

Press Release Summary:

Designed specifically for use in potentially explosive atmospheres, IP66-rated Ex BF 80 Series comprises 3 enclosure sizes housing up to 3 different command devices. Users can choose between command switches, indicator lights, and key-operated switches. Different actuating elements can be combined in one unit, which can be mounted directly at place of use. When fitted with optional wireless Ex technology, operating unit works according to energy harvesting principle.

Original Press Release:

Also Available as a Wireless Version Using Energy Harvesting Technology

Command and Indicator Switches for Potentially Explosive Atmospheres

With the Ex BF 80 series, steute is able to present a new range of command and indicator switches designed specifically for use in potentially explosive atmospheres. This series comprises three enclosure sizes housing up to three different command devices, thus offering users a variety of options. They can choose between command switches (including push buttons, mushroom buttons, double push buttons, selector switches and control switches), indicator lights and key-operated switches.

In accordance with the ATEX directive, these devices are suitable for use in gas Ex zones 1 and 2, as well as dust Ex zones 2 and 22, in other words universally. They permit different actuating elements to be combined in one compact unit which can be mounted directly at the place of use. They thus constitute a practical element within a well-designed, ergonomic man-machine interface.

Irrespective of the individual command and indicating elements chosen, the devices designed to suit protection class IP 66 are extraordinarily strong and durable, even in unfavourable application conditions. The explosion-proof elements throughout the entire series meet the ATEX and IECEx directives.

A special feature is the optional fitting of the operating unit with »wireless Ex« technology, which works according to the »energy harvesting« principle. The actuator plunger has an integrated electrodynamic energy generator which converts kinetic energy into electric energy. Energy for the transmission of radio signals is thus always available and neither cables nor batteries are needed. The Ex BF 80 series is extremely flexible to fit: it can be mounted on any wall or machine without the need to feed or fix any cables.

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