Hygienic Design Enclosures and Accessories

Production Line with Food Prep areasBy Christian Westwood, Rittal’s Industry Manager for Infrastructure

The 2017 Industrial Strategy document from the UK Government “Building Britain fit for the future”1 states,

The world will need 60 per cent more food by 2050 to allow us to feed 9 billion people, while demand for water is expected to rise by 20 per cent in the agriculture sector alone. For this to be possible, the way we produce our food needs to be significantly more efficient and sustainable.”

Manufacturers in the Food and Beverage sector are faced with the challenge of improving production efficiency not only to reduce their costs but also to ensure a growing global population survives and prospers.

So, why do I think that electrical enclosures and cooling equipment, a seemingly small part of any production process, can make a significant contribution to maximising efficiency? Because they have a major role to play in limiting planned and unplanned production downtime.

Downtime, when production is halted, represents the “worst case scenario” for plant operators. These dead periods reduce output, add to costs, and impact sales. However, in hygiene-critical production situations, longer downtimes are unavoidable because of the amount of cleaning required. In meat-processing plants, for example, machines must be at a standstill up to 40 per cent of the time, to allow for essential cleaning work.  

Hygienic Design

Typically, industrial wall-mounted enclosures and standard enclosures for machines and plant don’t support a need for fast but effective cleaning. Their basic design, as well as their various “nooks and crannies”, make cleaning more difficult, meaning they can be dirt traps and thus a breeding ground for germs.

Hygienic design stands for one principle above all: provisions for the simple and thorough cleaning of everything that could come into contact with foods – from the machine to its enclosure. It is particularly important to remove the aforementioned “dead spaces” or undercuts of any kind, as well as joints without radius, because such points are particularly prone to product residue accumulations, which in turn represent an ideal substrate for microbial contamination. For the same reason, surfaces with recesses such as the uncovered threads of screw connections, or screw heads with internal hexagons (Allen screws) or Torx screws are not allowed. Corners and joints must be smooth, gap-less and cleanly rounded.

To ensure that sprayed water is able to run off the surfaces of housings and enclosures in spray and wet zones, appropriately angled drain slopes must be provided.

The specially designed Rittal Hygienic Design (HD) enclosures meet these tough hygienic requirements in full. In addition to terminal boxes and compact enclosures in common sizes, which are available ex-stock, Rittal also has a comprehensive product portfolio that ranges from enclosures to operating housings for safely accommodating electrical equipment.

The entire range has been meticulously designed to meet the requirements, regulations and guidelines of the food and beverage industry. All the external parts are made entirely of stainless steel, which means a high resistance to chemicals, cleaning agents and disinfectants.

The enclosures meet the IP 66 protection category in accordance with IEC 60 529, as well as the NEMA 4X protection class, which means they can be cleaned with a high-pressure cleaner without any impact on their internal contents.

The door seals are made of silicone instead of polyurethane (PU foam), which is more resistant to all kinds of detergents, and dyed blue, which makes it identifiable as a “foreign object” in the event of any mechanical damage. The easily replaceable (but securely inserted) one-piece gaskets, which are safely fitted on the insides of the doors and panels to the outside, guarantee an unbroken seal.

Where Cooling is Required

But the enclosure is only part of the solution. It can prevent damage to electrical equipment from dust and water ingress, but can do little to combat high temperatures. Whether the enclosure is located in a hot environment, contains equipment that produces heat, or both, a cooling solution appropriate for the application decreases the risk of components tripping or even failing, once again reducing costly interruptions to production.

The most hygienic cooling method for enclosure climate control is an air/water heat exchanger. If cooling water system is not available, then the water for individual heat exchangers can be provided via chillers which can be installed remote from the open process.

For smaller systems, the one-off procurement costs for heat exchangers, chillers and piping are generally slightly higher than the costs of classic wall-mounted cooling units. But a heat exchanger is the system of choice for hygienic environments and could quickly pay back the investment through reduced maintenance requirements and lower energy costs.

In addition to air/water heat exchangers for use with stainless steel enclosures, Rittal offers special HD versions in the 650- and 1250-watt output classes. Their design simplifies cleaning procedures and contributes to food safety.


It may surprise some to learn just how much of an impact a poor choice of enclosure can have on production and output.

But in manufacturing, it’s sometimes the small details that make all the difference.



World first – The Blue e+ cooling unit – range extended…

Off the back of Blue e+ success, we are happy to announce that Rittal has extended its Blue e+ existing range from 2kW to 6kW to include a smaller unit which provides an output class of 1.6 kW. This new unit is an important milestone for the Blue e+ range and is designed to meet the growing need in industry for compact but efficient cooling units for enclosure climate control. The new unit encompasses all of the existing innovative Blue e+ features and is available for order immediately.

Blue e+1kw

The e+ principle:

  • Efficiency – 75% energy saved due to speed-regulated components and heat pipe technology
  • Versatility – Suitable for international use due to multi-voltage support
  • Safety – Longer service life of the components inside the enclosure and the cooling unit due to component-friendly cooling
  • User-friendliness – Intuitive operation due to touch display and intelligent interfaces

You can view the full range here at our dedicated microsite ->>  https://www.rittal.com/de_de/blue_e/plus/

If you would like further information or to book a FREE cooling inspection then please do not hesitate contact us

T – 01709 704105

E – information@rittla.co.uk


Rittal’s New Online Portal: Comprehensive Guidance for Modernising Data Centres


The International Data Corporation (IDC) recently reported that 73 per cent of companies now foresee the need for major modernization of data centres, to keep pace with the speed of digital advances.  They include Industry 4.0, the Internet of Things, big data and edge computing.

Rittal’s new IT microsite (www.rittal.com/it-solutions/en/tackles this challenge head-on, with a comprehensive review of products, services and integrated solutions that can be considered and tailored to meet a company’s individual needs.

The speed of the digitization of manufacturing, trade and other sectors means businesses require a rapid and adequate provision of IT solutions, through data centres which can be:

  • procured simply and economically
  • operated efficiently and safely

Modernising data centres to meet these challenges is a challenge in itself, but one made considerably easier with Rittal’s new IT microsite, which provides companies with a range of comprehensive information and advice (www.rittal.com/it-solutions/en).

Visitors to the new site will get practical advice on topics such as Big Data, cloud computing and IT security, as well as case studies of real-life applications.  There is a large library of white papers, brochures and references and a live-chat facility to raise questions directly with Rittal experts.


The launch of the microsite is sure to be a draw at Data Centre World (DCW) 2018 where Rittal is again showcasing its expertise as an enabler of innovative IT solutions, ranging from individual IT racks right through to turnkey data centres within containers which offer users maximum modularity, scalability and efficiency.  All are fully supported by Rittal’s comprehensive consulting and service programmes that can operate for the duration of a data centre’s lifecycle.

“As the IDC research highlighted, around 75 per cent of decision-making is now based on information gathered online,” explains Clive Partridge, Rittal’s Technical Manager for IT Infrastructure. “With our new IT website and our expertise, we are providing reliable support for customers in the decision-making process”.

Visitors can talk to members of the Rittal team about the solutions showcased in the new IT microsite, as well as view products from Rittal – The System, at Data Centre World (Excel, London, 21-22 March 2018) on Stand D510.

Further information at www.rittal.co.uk and www.friedhelm-loh-group.com or on twitter @rittal_ltd.     

Rittal Hygienic Design Fire Extinguisher Enclosure

Rittal has been developing its Hygienic Design range over many years. Its customers have benefitted from better protection of their electrical and electronic equipment, as well as less time spent washing down, and cleaner manufacturing environments.

Fire extinguishers are an absolute necessity on any manufacturing site, but they can be a haven for dirt and bacteria. 

A new addition to the range, the Hygienic Design fire extinguisher enclosure, is a simple solution that not only reduces the risk of contamination from these essential devices, it also protects them, helping you to ensure that they are fully functional whenever they‘re needed.

Rittal HD Fire Extinguisher Housing

Incorporating many of the features of the Hygienic Design compact enclosure, the fire extinguisher housing solves the same issues relating to cleanliness and hygiene. 

Its sloped roof, blue silicone seal, internal hinges and locking mechanism, welded stainless steel construction, viewing window and T-handle all result in fewer dirt traps and quick and easy cleaning.  These also provide ingress protection to IP 59K, and allow for inventory checks at a glance as well as, crucially, swift and effortless single-handed access.

Further information at www.rittal.co.uk and www.friedhelm-loh-group.com or on twitter @rittal_ltd.     

Slimline motor controllers create space in enclosures

Small drives for machines and equipment are typically powered up to 9.0 A, and are protected by conventional motor circuit breakers. However, when space in the enclosure is limited, it is very difficult to find room for significant numbers of protective components.

Rittal’s new motor controllers for its RiLine Compact power distribution system offers a sophisticated solution.

To assist the engineer Rittal has also produced a 3D configurator that reduces the time required to generate Compact RiLine busbar systems.


Following the successful launch of the busbar system “RiLine Compact” at the beginning of the year, Rittal is now expanding the product range.

Until now, the small 125-A-max busbar system consisted entirely of shock-hazard-protected boards, which form the basis of the system, along with assembly components such as connection adapters for busbar infeed and component adapters for the easy set-up of switchgear and protection devices produced by other manufacturers.

Rittal will shortly be launching new motor controllers into the range. These can be fitted directly and easily onto the board in a one-step installation, to minimise the time and effort spent on wiring.

A compact solution for small spaces

Rittal offers motor controllers in three staggered current ranges: 8 A/2.4 A/8 A. These combine the functions of direct starter and reversing starter within one single device.

Its slimline profile – just 22.5 mm wide – is particularly impressive and frees up around 50 percent more space compared to the standard 45 mm-wide switching device in the range, and as much as 75 percent more space compared to the 90 mm-wide reversing combinations.
Slimline motor controllers create space in enclosures

Hybrid technology to impress

The three-phase motor controller is a high-performance hybrid switching device with a current monitoring function, offering a longer lifespan and low-loss operation.

The principle behind it is simple: first, the electronics are switched on using the input signal, and then the mechanical contacts takeover for the duration.

The motor controller also provides diagnostics, which to detect internal and external errors. The operating statuses and error messages can then be evaluated through the four different illuminated LEDs.

3D Configurator

To assist the engineer Rittal has also produced a 3 D configurator that reduces the time required to generate Compact RiLine busbar systems.

A series of easy to follow steps produces detailed drawings, the ability to select component adaptors, and a bill of materials https://www.rittal.com/com_en/riline/konfigurator/#/6.

Further information at http://www.rittal.co.uk and www.friedhelm-loh-group.com or on twitter @rittal_ltd.

Hygienic Design – Extra cleanliness guaranteed – By Rittal

The new Hygienic Design brochure from Rittal is now available.

Here you will find easy to clean enclosures, cooling products and accessories that reduce the risk of contamination giving better protection to electrical and electronic equipment.

Brochure Cover

View the brochure here:  https://www.digi-flips.com/digipdfs/wn/rit/b8853784/digi-viewer.html

Find out more visit: https://www.rittal.com/com_en/hd/index.php?lng=en

To get a copy or discuss your requirements, do not hesitate to contact us: jmartin@rittal.co.uk / 01709 704105