Command and signalling devices with hygiene and clean-room certifications

Designed for hygiene sensitive areas of application: The N - program

Schmersal presents the latest safety technology for the food industry at the AnugaFoodTec 2015. This includes the new hygienic mushroom pushbutton of the N - program with an ergonomically improved shape as well as the cost-effective 3 - colour LED module. 

The new mushroom pushbutton NDTP30 / NDLP30, is easier to use due to its large round button area and has a better protection of the sealing membrane against mechanical damage when compared to push buttons.  One unique feature is the new 3 - colour LED module ELDE.N. With a single standard command unit three different signals or commands can now be displayed. Further benefits: Because of the reduced number of devices the operating elements can be reduced in size. This also reduces the number of surfaces that can possible be contaminated. In addition, the 3 - colour LED module is more clearly arranged and more cost-effective.  

The command and control devices of the N - program from Schmersal were tested for their suitability for hygienic applications by the Testing and Certifying Body for Food and Packaging of the DGUV (German Statutory Accident Insurance) and passed with flying colours. This is now documented once again in "black and white" with the DGUV test certificate. The tests showed that the operating device could be used in meat loading and processing machines without posing any hygiene risks.

In addition, the Fraunhofer Institute IPA has tested devices from the N - program with a view to their use in clean-room environments. The result: The command and signalling devices are suitable for use in production areas with the highest clean-room classification (air purity class 1 according to ISO 14644-1). The qualification certificate is also a recommendation for use in production environments of sterile preparations up to GMP Class C according to the EC GMP Guide, Annex 1.

The N - program was developed specifically for the food industry and other hygiene sensitive applications. The product range consists of a large portfolio of command and signalling devices, also a variety of accessories (emergency stop palm buttons, mushroom emergency push buttons, push buttons, illuminated push buttons and indicator lights, selector switches and main switches, etc.), all of which fulfil the principles of "Hygienic Design". This means the operating devices are designed so that no contamination can settle; as their geometry has no corners and edges, which allows them to be cleaned easily. Even with regular cleaning using a steam cleaner or high pressure cleaner there is still a considerable service life.  

All operating devices of the N - program also meet the requirements of protection type IP 69 K. 

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