Enclosures are essential components in modern-day industry and technology. Forming the backbone of control, distribution and automation technology, they ensure complex machine and plant systems operate safely and reliably.
Thanks to their structured design and their protection of the electronics installed inside, enclosures make a key contribution to efficiency. They make installation and maintenance work more straightforward, reduce downtimes and help automate processes. They also give systems a longer service life by protecting sensitive components from environmental influences such as dust, moisture and vibrations. Last but not least, thanks to their robust design and integrated safety mechanisms, enclosures safeguard the reliability of systems – a decisive factor when it comes to ensuring smooth production processes and preventing costly downtime.
In this post, you can find out what an enclosure is and learn about its design and areas of use.
What is an enclosure?
An enclosure is a housing that has been specifically developed to accommodate and protect electrical and electronic components. It ensures switchgear, control units and wiring are organised in a structured way and protected from external influences such as dust, moisture and mechanical loads. Although basic housings and distribution cabinets also offer protection and a range of functions, enclosures are designed for challenging requirements and combine all these features in an ingenious system.
Design of modern enclosures
Enclosure materials
Enclosures are often made of powder-coated sheet steel, but they can also be made of stainless steel or plastic. Stainless steel enclosures are particularly suited to hygienically sensitive areas in sectors such as the food and pharmaceutical industries.
Interior configuration and wiring
The inside of an enclosure has support rails and mounting plates for fitting switchgear, terminals and control units. The structured wiring ensures clearly organised and reliable connection of components. Depending on the requirements, components such as relays, power distribution systems, energy measuring systems and overvoltage protection modules can also be installed. Internal enclosure lights can illuminate specific components to facilitate maintenance when it’s dark or in poor light conditions.
Cooling and climate control
If necessary, enclosures are equipped with effective climate control solutions to ensure electronics keep working efficiently and guarantee reliable operation. Depending on the environmental influences and the level of heat being generated, different cooling methods can be used, including filter fans for simple applications, heat exchangers for energy-efficient heat dissipation, and active cooling units such as compressor cooling units for challenging conditions.
Safety features
The international technical standards and protection classes applicable to enclosures ensure they work both safely and reliably. The most important technical standards are IEC and, for products being exported to North America, UL and CSA. IP protection categories define the extent to which housings and enclosures are protected from dust, water and other influences. The IK index indicates the level of protection from mechanical impacts. It is used to evaluate the robustness of the housing or enclosure. Locking devices and monitoring systems also help ensure safe and reliable operation.
Function of an enclosure
The key function of an enclosure is to protect the electronic components installed inside from external influences such as dust and water. Enclosures with special vibration-damping elements and reinforcements can also withstand the kind of vibrations that occur, for example, in the maritime industry. Enclosures additionally enable centralised control and monitoring of machine and plant systems, which helps ensure efficient automation and process optimisation.
Structured wiring and secure component installation prevent short-circuits, power outages and other faults, which delivers a huge boost to operational reliability.
Areas of use for enclosures
Enclosures are used in many different sectors:
- Industry and mechanical engineering: Control of production facilities, robotics and automation systems
- Energy supply: Distribution and control of electrical energy in power plants and substations and when using renewables such as solar and wind power
- Building technology: Management of heating, ventilation, air-conditioning and safety/security systems
- Telecommunications: Protection and organisation of network technology and communications infrastructure
- Infrastructure: Control of traffic management systems, water treatment installations and other critical infrastructure such as railway technology
Rittal as a leading supplier of control cabinets
Rittal was founded in 1961 and, as the inventor of series enclosures, has driven forward the standardisation process. Today, Rittal is the largest company in the Friedhelm Loh Group and a world-leading supplier of software, automation and hardware solutions, including enclosure systems that meet the most stringent quality requirements. With some 12,600 employees, 95 subsidiaries and 13 production sites worldwide, the Friedhelm Loh Group serves customers in a variety of sectors.
The most popular product lines include the modular VX25 enclosures, the compact AX systems and specialised compact enclosures. Impressive features of Rittal solutions include a modular design, top-quality materials and integrated climate control solutions that ensure optimum temperature control.
Efficient enclosure manufacturing with Rittal and Eplan
End-to-end digitalisation is a decisive efficiency factor in cutting-edge enclosure manufacturing. This is exactly where Eplan – also part of the Friedhelm Loh Group – comes into its own. The Eplan Platform can record planning data for electrical engineering centrally and use this in the form of a digital twin throughout the entire engineering and production process.
In conjunction with Rittal system solutions, this creates an end-to-end workflow – from circuit diagram and 3D design planning through to automated production. The result is fewer errors, shorter throughput times and a much higher level of productivity for enclosure manufacturing.
Summary
Enclosures are essential building blocks of cutting-edge control and automation technology. Their ingenious design protects sensitive electronics, enables centralised control and makes a major contribution to operational reliability. When selecting an enclosure, the factors you need to consider are quality, protection category, climate control and modularity. Thanks to its innovative systems, Rittal ticks all these boxes, meaning you can ensure the efficiency and reliability of your plant systems on a long-term basis. What’s more, the dovetailing of Eplan and Rittal solutions offers enclosure manufacturers a genuine competitive edge – from planning through to operation.
FAQs
1. What is an enclosure and what is it used for?
An enclosure is a housing for electrical and electronic components. It offers protection from dust, moisture and mechanical influences and enables reliable control and distribution of electrical energy.
2. What elements make up an enclosure?
Today’s enclosures consist of a robust housing (sheet steel, stainless steel or plastic), mounting plates, support rails and wiring elements. Lighting, climate control and safety mechanisms can be integrated as optional extras.
3. What materials are used for enclosures?
Typical materials are powder-coated sheet steel for standard applications, stainless steel for hygienic areas and plastic for corrosive environments.
4. Why is climate control important inside an enclosure?
Climate control protects sensitive electronics from overheating and moisture. Filter fans, heat exchangers or active cooling units such as compressor cooling units are used, depending on the thermal load.
5. What technical standards and protection categories apply to enclosures?
IEC, UL and CSA standards and IP protection categories for protection from dust and water are the key requirements. The IK index indicates the level of protection from mechanical impacts.
6. In which sectors are enclosures used?
Enclosures are used in industry, mechanical engineering, energy supply, building technology, telecommunications and infrastructure applications – anywhere that calls for the control and protection of electrical components.
7. What makes Rittal stand out as a supplier of control cabinets?
Rittal offers modular systems such as the VX25 and AX, combined with integrated climate control and digital engineering via the Eplan Platform. This ensures efficiency, reliability and end-to-end workflows for enclosure manufacturing.