FEATURE ENCLOSURES
Moreover, it is very easy to machine, where holes or cut outs are required. GRP enclosures are non-conductive and therefore do not require a safety earth cable to be connected.
LEGISLATION The material choice is often driven by legislative requirements. For example, 17th Edition amendment 3 regulations 421.1.201 stipulate that only metal can be used for consumer units in UK domestic installations. Specifiers must therefore be mindful of the applicable legislative requirements and how these impact on the choice of material. The influence of legislation on
enclosure designs goes beyond the material choice. In particular, ATEX requirements need a certain level of enclosure protection to mitigate the risk of explosion, as well as the ingress of volatile dust, vapours and liquids, so the design must comply with ingress protection (IP) regulations. Where electrical equipment is concerned, the importance of health and safety cannot be overstated. To address this concern, specifiers have a duty to ensure that enclosures meet safety requirements and prevent unauthorised entry since certain environments require more protection than others. Impact
resistance (IK) ratings are a good indicator of the level of protection on offer and enclosure designs should be in line with the desired IK rating. With demand for enclosures
continuously evolving, manufacturers and suppliers need to be able to provide enclosures that can be easily customised
to meet the diverse demands of the end users. The starting point for specifiers is to understand the unique requirements of the customer and the intended operating environment.
Hellermanntyton
www.hellermanntyton.co.uk
DC LINE FOR APPLICATIONS WITH DC POWER SUPPLY
Our world is getting more and more digital. Complex process and control technology is increasingly gaining entry to electronic applications in the course of industry 4.0. This also involves the use of thermal management components, which are operated with DC voltage. Stego, with its many years of competence in DC products, is aware of these needs and now focuses on this trend. DC Line items for cooling and lighting applications mark the starting point. AC or DC? This is the initial question for the electrical design of control
cabinets. The decision for AC or DC voltage to supply an application is fundamental, it influences the entire circuit layout, as well as the component selection. DC supply - the transformation of AC voltage in DC voltage before entering the enclosure - is becoming increasingly prevalent in the course of industry 4.0 and more complex process and control technology. The electronics protectors from Stego recognise these needs, and the company has many years of experience with DC products in the segments of heating, regulating, cooling and lighting. Integrating its products into the DC Line takes this development into account. The enclosure light LED 025 Ecoline, with operating voltages from DC 24 - 48V
(min. DC 20V, max. DC 60V), and the Filter Fan Plus FPI/FPO 018, with DC 24V and DC 48V, mark the start in the Stego DC Line. The LED 025 Ecoline lights, in their DC variants, score with high fail-safety as well as long service life (60,000h). Glare-free brightness with daylight colour temperature (6,000 - 7,000K, 400Lm at 120° beam angle) lead to true-colour illumination with low power consumption (5W). Mounting the compact LED lamp is easy with a choice between screw, clip or magnetic fixing. Optional connection for an external switch, integrated on/off switch, or integrated motion detector, round off the features. As DC variants, the Filter Fans Plus FPI/FPO 018 also proves its advantages. Available in three standard sizes (92 x 92, 124 x 124 and 176 x 176mm), the Filter Fan Plus is mounted easily and tool-free by means of its patented ratchet mount mechanism. The outstanding airflow performance by comparison to the fan diameters, is due to the air-flap outlet technology which ventilates the air more freely than in conventional systems from the enclosure. With low power consumption of 2.7W to 12W, the Filter Fan Plus impressively confirms the efficiency of the DC approach. Stego is committed to the principles of ‘Stego engineering’. With the introduction of the DC Line, Stego proves to be a reliable and application-oriented partner for OEM manufacturers and integrators in the field of electrical engineering.
Stego 20 MARCH 2017 | ELECTRICAL ENGINEERING
www.stego.co.uk
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