Contacts in No Time

Wires and cables routinely have to be connected to copper busbars when manufacturing control gear and switchgear systems.

The conventional approach is time-consuming and uses screw clamps or fixed conductor connection clamps.

But help is at hand, thanks to the launch of a new range of maintenance-free conductor connection clamps from Rittal.  The clamps utilize push-in technology, providing users with a fast, easy and secure method for connecting conductors to busbars.

Rittal’s push-in clamps also have a whole host of other advantages as well as extremely quick and easy cable connection.  They are maintenance-free and can be used for many different types of conductors.

Connection Clamps

Rittal has developed a new generation of conductor connection clamps enabling panel builders and switchgear manufacturers to connect cables and wires directly to busbars.

The new push-in conductor connection clamps are available in two clamping ranges, 0.5–4 mm2 and 1.5–16 mm2, and for copper busbars, 5 and 10 mm thick in each clamping range.

The push-in conductor connection clamps enable quick and easy attachment to the busbar. The stripped end of the conductor is connected to the busbar simply by pushing them together, and the connection is held securely in place with a separate spring mechanism. The spring optimises conductivity by removing oxide layers that have formed on the busbar. And optimal contact is maintained by the integral contact block with its defined and raised contact points.

You can achieve quick and easy connections with solid, multi-wire and ultrasonic welding conductors and also fine wire conductors with wire end ferrules and twin wire end ferrules.

The clamp can reduce issues such as incorrect compression/torques and loosening while its maintenance-free design improves reliability and keeps running costs down.

The conductor connection clamp can be used for numerous applications, such as connecting protective and neutral conductors to busbars or as short circuit-resistant voltage taps on the copper bars of a main busbar system. It is also possible to make string distributors or distributor blocks with a large number of connector clamps for outgoing cables.

Thanks to its numerous UL and IEC certifications, the new conductor connection clamp is suitable for use worldwide including in maritime and offshore applications. It is currently tested by ABS, DNV-GL and LR, and approvals are planned to be completed by September.

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

 

Advertisements

Calculating the Value of Automation

When it comes to processing panels, CNC machining centres, such as Perforex from Rittal Automation Systems, are light years ahead of the alternative, manual approach when it comes to productivity and efficiency. In fact, machining centres speed up processing by as much as 66 percent compared to the traditional hand-tooled method.

Now, a new web-based Return on Investment (ROI) Calculator helps customers accurately gauge how quickly a Perforex will take to pay for itself before they place the order – and they may be pleasantly surprised by what they find!

Perforex machining centres from Rittal Automation Systems are tailored to the challenges of switchgear manufacturing. They are ideal for the automated production of bore holes, cut-outs and threads in mounting plates, enclosure doors and side panels.

All the mechanical processing steps in the preparation of enclosures for population – including drilling, thread cutting, and milling of cut-outs – which are so time-consuming, cost-intensive, and error prone, can be accomplished in a single work step.

Programming a job into the machining centre takes just minutes, and is either on the basis of simple, component-oriented workshop programming, or using imported CAD data from either Rittal’s software system Eplan or DXF imports from any other CAD platforms. Any programme setting can be saved for future, identical jobs, speeding up work-flow even more. Furthermore, once done, engineers are free to work on other tasks, maximising team efficiency and business output.

Perforex systems are suitable for all materials typically found in switchgear, including steel, aluminium, copper and plastics.

Moreover, an automatic tool changer allows multiple tasks to be performed in a single operation, without the need for human intervention.

Work Out Your ROI – at the click of a Mouse

The new Rittal online calculator demonstrates how a Perforex system can deliver a rapid and tangible return on investment even for low production volumes.

Customers simply enter the typical manufacturing quantity, current machining cycle time, and labour rates per hours, and the web-based tool computes the corresponding payback period for a variety of Perforex models.

Proven efficiency gains under real-world conditions

When the directors of Peterborough-based panel builders Pneumatechnique Ltd were looking at ways to improve efficiency and offer better production consistency they turned to Rittal and its automation systems for switchgear construction. Pneumatechnique’s aim was to find ways to lower both overheads and operational costs.

Following a detailed assessment and recommendations made by Rittal’s expert team, the decision was taken by Pneumatechnique to install a Rittal Automation Perforex CNC machine. It was quickly identified that the capital expenditure could clearly be outweighed by the cost savings and the Perforex installation became a “no-brainer” as part of the investment project.

Adam Wilson, production manager at Pneumatechnique advises: “This project has seen a lot of investment not only in money but in time; it has involved a great deal of hard work. The final result is an excellent fit for us and we are now offering customers something they can’t do.”

Going forward, Adam advises that, “the Perforex system has opened up a number of new routes to market. What’s more this system looks like it will offer us the opportunity go way beyond the targets we have set for it.”

Thanks to their new, higher levels of productivity, the team expects the machining system to pay for itself in just 12 months. To find out more, go to

fri151759900

http://www.rittal.com/roi-calculator.

http://www.rittal.co.uk

 

Climate control in the food industry

Climate control of enclosures using water cooling is highly efficient, especially if there is already a central cold water supply available in the production plant. The new Hygienic Design air/water heat exchangers from Rittal are ideally suited to the food industry, where hygiene standards are exceptionally stringent.
Hygiene is an absolute must in the food industry: machinery, plant and components must readily withstand daily cleaning with pressure washers and jet steam cleaners. All surfaces must also be easy to clean, and/or designed to prevent contaminants from adhering to them.
Use water cooling to dissipate heat
Liquid cooling of enclosures offers a number of benefits: Because water has a higher thermal capacity than air, liquid cooling can dissipate large quantities of heat. What’s more, industrial environments often already have a central cooling water supply available that can be used for enclosure cooling. All that’s left to do is to mount suitable air/water heat exchangers on the enclosure. With Hygienic Design, it is particularly important that no air exchange takes place between the enclosure and the environment.
Rittal has revamped its air/water heat exchangers, and can now offer its clients in the food industry two variants of Hygienic Design. Air/water heat exchangers for wall mounting can supply cooling outputs of either 0.65 kW or 1.2 kW. The hygienic design reduces the risk of contamination in the food industry, thus helping to ensure product safety.
Modified design
Rittal has modified the design of Hygienic Design in a number of respects.
For example, the attachment to the enclosure wall using threaded bolts and nuts has been designed so that the screw fastening is not visible from the outside. The enclosure is made from stainless steel with a brushed grain size of 400, producing a surface roughness Ra of less than 0.8 μm. The smooth surface finish is easy to clean and disinfect. There are no hard-to-clean gaps where contamination could collect.
The silicone seal between the enclosure and the case prevents the transfer of colourants, flavourings and unwanted odours. The seal eliminates gaps between the air/water heat exchanger and the enclosure which would be difficult to clean.
The seals are available as spare parts, and are easily replaced in the event of mechanical damage. The seals are dyed blue in accordance with FDA Guideline 21 CFR 177.2600, making them clearly distinguishable from contaminants such as food residues. The flat seals on the water connection fittings are likewise dyed blue, and geometrically designed to sit flush against the shape of the fitting. A metal end stop prevents compression of the seal, so that edges cannot protrude and allow contaminants or micro-organisms to accumulate.
Tested hygiene
The top of the enclosure tilts forwards by 30 degrees. This prevents objects from being placed on top of the enclosure, while at the same time ensuring that liquids, such as detergents and disinfectants, run off quickly.
Air/water heat exchangers have protection categories of IP56/59, meeting the demanding requirements of pressure washing and steam cleaning.
The air/water heat exchangers have C-UR and CSA approval, making them suitable for international use.
The Hygienic Design was tested by the DGUV Food department testing and certification agency in accordance with GS-NV 6 (test principles for hygiene). The devices comply with standard DIN EN ISO 14159:2008 and are suitable for use in the food sector in conformity with DIN EN 1672-2:2009.
Further information at http://www.rittal.co.uk and http://www.friedhelm-loh-group.com or on twitter @rittal_ltd.

fri160405200fri160402095.jpg