Schmersal: Expanded H Series Modular Command and Signaling Devices Support Hygienic Applications
The H series from Schmersal is a full range of new command and signaling devices specifically designed to the latest international regulations for hygiene-sensitive applications. The new series meets the requirements of DIN EN ISO 14159 (Safety of machinery – Hygiene requirements for the design of machinery) and the latest version of EN 1672-2 (Food processing machinery – Basic concepts). This standard sets out very precise specifications for the hygienic design of all command elements at the human-machine interface (HMI) of food-processing machinery. Also taken into consideration was a new regulation, which formulates the requirements relating to the selection of materials for this particular area of use (Regulation 10/2011/EU).
The new H range not only meets the requirements of the standards and ‘hygienic design’ construction principle but is fully modular as well. Thanks to snap-on contact carriers and individual contacts which can be combined (also in a piggyback system), this concept enables very easy and rapid installation as well as maximum flexibility and the ideal preconditions for pre-wiring.
Characteristic features of the range of command and signaling devices are gap-free transitions between sealing elements and surfaces, with an absence of protruding parts. The command elements are easy to clean and so well sealed that they can withstand regular cleaning with high-pressure cleaners and aggressive cleaning agents. Gaskets and seals between component parts are blue colored.
This series of command devices offer a range of different operators including pushbuttons, mushroom buttons, emergency-stop buttons, and signal light indicators, all available in multiple colors. In addition, there are selector switches with two or three positions, step switches from 2 to 12 positions, main disconnect switches and a potentiometer drive knob.
A total of 147 different devices are available, including 26 mushroom pushbuttons, 24 selector switches with two or three positions and four potentiometer-rotary switches. The designer of a food-processing machine can freely decide which type of command device from the H range he wishes to use for the design of the HMI. With its wide range of different hygienic switchgear devices, the H range is unique to the market. In addition, and also new, the designer can order these command and signaling devices with individual laser marking, e.g. as an OEM version with logo.
More information about the H series command and signaling devices from Schmersal
