Industrial door drive units for fire ...
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W 27-3 Ex: the photoelectric series in standard-compliant protective housings for the Ex-zone
The new W 27-3 Ex is the standard-compliant solution for object detection in Zone 2 (gas) and Zone 22 (non-conductive dusts) Ex-zones. Standard-compliant means: the sensor and its metal protective housing comply with Categories 3G and 3D of the 94/9/EU (ATEX) directive – thus users need have no worries about the mechanical strength of the device stipulated in the directive (and often underestimated). For all the Ex-protection provided, sensor performance is not neglected: long ranges, rapid commissioning and high operational reliability make the W 27-3 Ex an EXcellent automation solution.
The W 27-3 Ex series meets the requirements of Category 3G and 3D, based on the 94/9/EU Directive. The relevant standards demand, among other things, that the housings of such electrical equipment must have a mechanical strength corresponding to test criteria in order to achieve the Ex-protection Category. The responsibility for standard-compliant design is transferred to the user (at the latest) on purchase and operation of the device, and the user must then make a major effort to determine and guarantee the mechanical strength of the device. These costs and risks are completely absent when the W 27-3 Ex is used. At the same time, users have a complete series at their disposal, with which they can solve their tasks individually, efficiently, reliably and standard-compliantly.
Ex-photoelectric switches: rapid commissioning thanks to intensive red light
Long operating ranges with large functional reserves and rapid commissioning – made possible by a new, intensive red-light transmission LED – are vital features of the two Ex-photoelectric switches in the series. The WL 27-3Ex photoelectric reflex switch offers an operating range of 0.1 - 11 m; the WSE 27-3Ex through-beam system can be used over distances of 0 - 25 m. Whether on the reflector or the receiver – alignment of both devices is considerably simpler with the new transmission LED and the bright li
The W 27-3 Ex series meets the requirements of Category 3G and 3D, based on the 94/9/EU Directive. The relevant standards demand, among other things, that the housings of such electrical equipment must have a mechanical strength corresponding to test criteria in order to achieve the Ex-protection Category. The responsibility for standard-compliant design is transferred to the user (at the latest) on purchase and operation of the device, and the user must then make a major effort to determine and guarantee the mechanical strength of the device. These costs and risks are completely absent when the W 27-3 Ex is used. At the same time, users have a complete series at their disposal, with which they can solve their tasks individually, efficiently, reliably and standard-compliantly.
Ex-photoelectric switches: rapid commissioning thanks to intensive red light
Long operating ranges with large functional reserves and rapid commissioning – made possible by a new, intensive red-light transmission LED – are vital features of the two Ex-photoelectric switches in the series. The WL 27-3Ex photoelectric reflex switch offers an operating range of 0.1 - 11 m; the WSE 27-3Ex through-beam system can be used over distances of 0 - 25 m. Whether on the reflector or the receiver – alignment of both devices is considerably simpler with the new transmission LED and the bright liThis product information
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