DIN rail: Basic construction and versions () The original concept was developed and implemented in Germany in 1928, and was elaborated into the present standards in the 1950s. The fingers have rounded edges to protect wires (and hands) from cuts and abrasions.ĭid you know? The term DIN rail derives from the original specifications published by Deutsches Institut für Normung (DIN) in Germany, which have since been adopted as European (EN) and international (IEC) standards. They typically have “fingers” on the sides that create slots for wires to be added, removed, or rerouted. Wire ducts are channels that guide and separate runs of wire and cable. They secure relay sockets, circuit breakers, terminal blocks, fuses - as well as small drives, industrial-communication devices, PLCs, and other controls. A DIN rail is a standardized metal rail used for mounting components inside control panels and other electrical enclosures. Step Two: Back Panel Layout This is where the electric panel design begins to come to life.įollowing the plan, lines and drill holes are drawn on the back plate marking the location where components, including the wire ducts and DIN rails, will be mounted.ĭIN rails and wire ducts are like the bones of a control panel – everything is connected to them in one way or another. The assigned project manager will then source the specified components and enclosures in preparation for the next step of the panel build – layout of the back panel. Once the drawings are received by Simplex, they are reviewed, and adjustments (if any) are made. Occasionally, minor adjustments may need to be made to the original design. In order to ensure that all applicable regulations, UL standards, and safety requirements are met the design process can be quite complex. These devices can include air conditioners, heat exchangers, Vortex coolers, thermoelectric coolers, fans, and vents. Components must be spaced to allow “breathing room.” Devices to vent heat and cool the interior of the enclosure are also a crucial part of panel design. Enclosed electronics generate heat that can lead to component failure if not mitigated properly. Thermal management is another key factor to consider in panel design. Intelligent device drawings for VFDs, motion controllersĬontrol panel designs must consider factors such as the intended purpose of the panel, power consumption, overcurrent protection and conductor sizing, conductor/cable tagging and routing, electromagnetic interference, UL requirements, and code/regulatory compliance.I/O module and field termination strip drawings.Block diagram and/or communication system architecture.Power distribution and grounding drawings.Interior layouts with dimensions and wire management provisions.Drawings are provided by the customer and define the work to be done. Therefore, the first step in making a panel is to create design drawings. ![]() Many panels are custom made for specific applications and customers. The design and build process can be quite complex but can be divided into seven basic steps or phases: Although electrical control panels may appear straightforward in concept, many people, even those in industry, are not aware of exactly how panels are made. Modern industrial control panels consist of power circuits or control circuits (or both) which provide signals that direct the performance of machinery or equipment. As the predecessors of programmable logic controllers (PLC), they gradually replaced electro-mechanical control mechanisms and led to the development of the modern electrical control panel. Electromechanical pneumatic and hydraulic control devices fit the bill.īy the 1950s, solid-state digital logic modules were being used in industrial control systems. In the early 20 th century, factories began to transition to electric power and new types of mechanisms were developed to control equipment and production lines. Over the years, as factories grew and evolved, there was a need for more sophisticated control mechanisms. Steam powered factories ran continuously and had rudimentary control mechanisms. The belts could also be directed vertically through a hole in the ceiling to power machines on a second or third floor. ![]() Other shafts, connected via belts and gears, drove hammers, punches, presses, looms, and other machines. ![]() ![]() In the factories of the Industrial Revolution, steam engines powered a central steel drive shaft that ran along the length of the factory and sometimes continued outside into a second building.
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