In the world of modern electrical engineering, where requirements for reliability and aesthetics of engineering systems are constantly growing, modular enclosures of the series RAM Block from the company DKC occupy leading positions. These solutions allow you to create unique configurations of distribution cabinets that fit perfectly into the interiors of residential, office and commercial buildings. Using a custom configurator or understanding component selection principles is a critical design step. Not only the appearance, but also the durability of the entire electrical system of the facility depends on the correct assembly of the “puzzle”.
Many electricians and designers are faced with the need to quickly and accurately assemble a cabinet without making mistakes in the part numbers. System DKC RAM Block built on the basis of modular walls and profiles, which gives incredible flexibility, but requires care when ordering. An error in the selection of even one connecting element can stop installation on site for several days. Therefore, it is important to clearly understand the logic of building the case and know which components are basic and which are optional.
Next, we will analyze in detail the structure of these cabinets, the principles of their configuration and nuances that are often overlooked. You will learn how to avoid common mistakes when ordering and installing, and you will also understand why the modular system is considered one of the most convenient on the market. We will not delve into complex mathematical calculations of loads, but will pay maximum attention to the practical side of assembly and selection of components.
Modularity concept and main system components
The basis of philosophy RAM Block is the abandonment of monolithic welded structures in favor of prefabricated modules. This allows the cabinets to be transported disassembled, taking up minimal space, and assembled directly at the installation site. The main load-bearing elements here are vertical posts and horizontal profiles, which are fastened together with special locks. Such modular design provides high rigidity of the frame even with large dimensions of the product.
The cabinet walls are powder-coated metal panels that can be either solid or glazed. Transparent polycarbonate inserts allow you to visually monitor the condition of the equipment inside without opening the door, which is especially important for public spaces. It is important to note that all panels have standard dimensions, multiples of a specific module, which makes it easy to replace them or expand the cabinet in the future.
⚠️ Attention: When ordering panels, be sure to check the type of coating. For rooms with high humidity or aggressive environments, standard powder coating may not be enough, and additional protection or the selection of a specialized series will be required.
The key element that ensures tightness is the seal. In the system RAM Block high quality used EPDM seal, which is laid along the perimeter of the door frames. It retains elasticity over a wide temperature range, guaranteeing the declared protection class IP65 or IP66. Without a properly selected and installed seal, even the most durable frame will not save the equipment from dust and moisture.
The modularity of the RAM Block system allows you to change the dimensions of the cabinet on site by adding or removing sections, which is not possible in welded cases.
Algorithm for selecting components and working with catalog data
The process of assembling a cabinet begins with determining its dimensions: height, width and depth. Unlike simple boxes, here each dimensional parameter affects the set of required profiles. For example, increasing cabinet depth requires the use of longer mounting panels and corresponding extended mounting profiles. Component Part Numbers DKC are strictly structured, and knowledge of this structure significantly speeds up the engineer’s work.
To simplify the task, it is often used DKC RAM Block configurator in digital form or paper selection tables. However, you should not rely only on automation. You must manually double-check the compatibility of the selected elements. Particular attention should be paid to the type of installation: whether the cabinet will be overhead or built-in. Built-in versions require special flanges and fasteners that are not included in the standard surface-mounted version.
Below is a table showing the dependence of the configuration on the dimensions of the cabinet (approximate data for understanding the logic):
| Dimensions (HxWxD), mm | Mounting panel type | Number of racks | Seal type |
|---|---|---|---|
| 600x400x200 | Standard, 1.5 mm | 4 corner | EPDM, profile 9x6 |
| 800x600x300 | Reinforced, 2.0 mm | 4 corner + 2 middle | EPDM, profile 12x7 |
| 1000x800x400 | With perforation | 6 racks (double) | Double circuit |
| 1200x1000x500 | Stainless steel | 8 racks (double) | Silicone heat resistant |
When placing an order, it is important to consider spare parts. Fastenersitems such as screws, nuts and washers often get lost during the installation process. It is recommended to order an additional set of hardware in the amount of 10-15% of the total quantity. This is a little thing that can save the situation if during assembly a defect is discovered in the batch or a key bolt is lost.
Tools and preparation for installation
Housing assembly RAM Block does not require complex industrial equipment, but having the right hand tools is a must. The basic set includes a screwdriver with adjustable torque, a set of screwdrivers, wrenches and side cutters. Using an impact tool (wrench) at high speeds can damage the threads in aluminum profiles or tear off screw heads, so it is better to work carefully and without fanaticism.
Before starting assembly, it is necessary to prepare the work site. The surface must be smooth, clean and dry. Even a small grain of sand that gets under the seal or between the joining planes of the profiles can break the tightness of the entire product. Therefore clean installation is not just a recommendation, but a technical requirement to obtain the declared protection class.
Particular attention should be paid to cutting the seal. If you use coil seal, it should be cut at a 45 degree angle where the corners meet. An incorrect cut will create gaps through which moisture can penetrate. For factory kits DKC Often pre-cut lengths are supplied, but when modifying a cabinet this skill will be extremely useful.
☑️ Preparing to assemble the RAM Block
⚠️ Attention: It is strictly prohibited to use abrasive materials to clean contact surfaces or profiles. This will damage the protective zinc layer and lead to rapid corrosion.
Step-by-step instructions for assembling the frame
Assembly begins with the formation of the frame. Vertical posts are connected to horizontal profiles using special brackets or screw connections. At this stage, it is important not to tighten the fasteners “all the way”, but only to fix the geometry. After assembling the rectangle, you need to check the diagonals. If they are equal, it means that the frame is assembled without distortions, and you can begin the final tightening.
The next step is installing the back panel and side walls. The panels are inserted into the grooves of the profiles and fixed. Here it is important to monitor the orientation of the panel: the outer and inner sides may differ in the presence of stiffeners or mounting holes. Mounting panel (din-rail or solid sheet) is installed inside the frame on special brackets that allow you to adjust the planting depth.
Installing doors is the most crucial moment. The hinges are hung on the racks, and the gaps are adjusted. The door should open smoothly, without distortions or spontaneous closing. The gap between the door and frame should be uniform around the entire perimeter. Only after successfully hanging and checking the operation of the locks can seals (if they are not pre-installed) and fittings be installed.
The nuances of adjusting hinges
If the door warps, do not rush to remove it. Loosen the hinge screws on the frame and slide the hinge in the desired direction. Often an offset of 1-2 mm is enough for a perfect fit.
During the assembly process, situations may arise when the standard set is not enough. For example, you need to install an additional internal door or divide the cabinet into two compartments. For this purpose they are used separating profiles and additional sets of hinges. System RAM Block provides for such extensions, but requires precise positioning of internal elements.
Features of operation and climatic version
Wardrobes DKC RAM Block designed for use in various conditions, but their possibilities are not limitless. The standard version requires operation at temperatures from -40 to +60 degrees Celsius. When installing equipment in the far north or hot climates, it is necessary to take into account the thermal expansion of materials and possible changes in the properties of seals.
To prevent condensation inside the cabinet, especially during sudden temperature changes, it is recommended to use heating or ventilation systems. Condensation is the main enemy of electronics, causing short circuits and corrosion of contacts. Installation of simple thermostats and heating elements significantly extends the life of the equipment.
Protection class IP indicated in the product labeling and depends on the configuration. It is important to understand that the protection class is only relevant when the doors are closed and locked. Any cables introduced must be sealed with glands of the appropriate diameter. A simple hole in the cabinet wall without sealing reduces the protection class of the entire product to IP00.
For cable entry, use the bottom of the cabinet or special cable entries with seals. Never damage the integrity of the top panels unless necessary to prevent condensation from entering from above.
Typical mistakes when ordering and installing
One of the most common mistakes is incorrect calculation of the depth of the cabinet relative to the equipment being installed. Circuit breakers, RCDs and other modular equipment have their own dimensions, and you need to add space for bending wires. If the depth is chosen flush, it may be impossible to close the door, or the wires will be under dangerous tension.
Another common problem is ignoring the weight of equipment. Shelves and mounting panels have a maximum load capacity. Installing a heavy transformer or uninterruptible power supply on a light shelf without additional reinforcement of the frame can lead to deformation and collapse of the structure. Always check technical load characteristics in the manufacturer's catalog.
Also often forgotten is the headroom for (expansion). The electrical network of a facility can grow, and if today the cabinet is 100% full, tomorrow there is simply no room for a new machine. It is recommended to fill the cabinet to a maximum of 80-85%, leaving a reserve for modernization.
⚠️ Attention: Do not use damaged panels with scratches to metal for outdoor installation. Even a small scratch will become a source of corrosion, which will quickly spread under the paint layer.
Frequently asked questions (FAQ)
Is it possible to combine panel colors in one RAM Block cabinet?
This is technically possible, since the geometry of the profiles is the same. However, the manufacturing plant usually supplies cabinets in a single color (RAL 7035, RAL 9016, etc.). To obtain different colors, you will need to order panels separately, which may increase delivery time and cost.
What is the maximum protection class that can be obtained with this system?
If assembled correctly, using all seals, sealed entries and the absence of unnecessary holes, the system RAM Block provides protection class up to IP66. This means complete protection against dust and powerful jets of water.
Do I need to ground the cabinet door?
Yes, this is a mandatory requirement of electrical safety rules (ELR). The door must be connected to the cabinet body with a flexible copper conductor (braid) with a cross-section of at least 4 mm² (or according to the design), since control devices accessible to the user can be installed on it.
Are DKC accessories compatible with other brands?
Mounting panels and DIN rails often have standard dimensions, but specific fasteners and profiles RAM Block unique. The use of accessories from other brands is possible, but will require the manufacture of adapters or fasteners yourself, which does not guarantee reliability and maintenance of the warranty.
To summarize, we can say that DKC RAM Block is a powerful and flexible system for professionals. Understanding the principles of its operation, attention to detail when ordering and adherence to installation technology will allow you to create a reliable and aesthetic power distribution point that will last for decades. Use configurators as an assistant, but always check the result with engineering thinking.