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Cabinet pc monitor peripherals - Efficient working methods are hardly imaginable without modern computer technology. This not only affects the classic office and administration sector, but of course also industrial production facilities, workshops and other areas where things are cold, hot, dirty, brisk or damp. So if computers, keyboards and screens have to be used here, then it is necessary to protect these sensitive devices in a special way. For this purpose, you can get high-quality and robust PC and monitor cabinets for use in critical environments here in the eibabo online shop. They are made of plastic or powder-coated metal and, depending on the model, have lockable viewing doors, keyboard drawers, worktops, inspection access and lecterns. This gives you the option of connecting peripherals such as scanners, printers, measuring and reading devices in addition to the PC and monitor, or storing additional documents and small tools that are frequently used.Catalogue content:In this eibabo® catalogue Cabinet enclosures > Enclosure/housing for PC, monitor or periphery you will find items from the following product groups:Item overview:Cabinet/housing for PC, monitor or peripheralsCompact cabinetComputer cabinetCountertopEnclosure/housing for PC, monitor or peripheryGrommetHousing/cabinet for PC, monitor or peripheralsMonitor cabinetMonitor workstationOperator cabinetOperator workplacePC cabinetPlaster housingTabletopWorkstationWorkstation cupboardWorkstationsfrom the following manufacturers:Manufacturer overview catalogue Cabinet pc monitor peripherals:RittalSchneider Electric
Cabinet keys - Switch cabinets and housings are available in different designs. Some simply latch, others are fitted with standard triangular or square hasps. Publicly accessible switch cabinets are usually secured with switch cabinet locks, for which a classic key is required, because nobody wants unauthorized persons to tamper with their own electrical installation. The eibabo technology store offers you suitable keys for all of these locking mechanisms. Our portfolio ranges from double-bit keys to universal key crosses to individual replacement keys. Choose from our wide range, use one of the many payment methods and monitor your delivery with our shipment tracking. eibabo is proud of tens of thousands of positive reviews.Catalogue content:In this eibabo® catalogue Energy distribution systems > Key for enclosures/cabinets you will find items from the following product groups:Item overview:3-point key4-point keyArchitect keyBeard keyBowden keyCabinet keyControl cabinet keyCrescent KeyCruciform wrenchCylinder keyDouble bit keyHalf moon keyKeyKey crossKey for barrier postKey for enclosureKey for enclosures/cabinetsKeys for cabinet systemsSocket spannerSocket wrenchSpare keySpecial keySquare keySquare socket wrenchSwitchgear cabinet keyThree-square wrenchTriangular wrenchUniversal keyfrom the following manufacturers:Manufacturer overview catalogue Cabinet keys:ABNCimcoEatonElcomFHF Funke+HusterHagerHekatronHenselIntercableJungKlaukeKnipexPentairPhoenixRittalStahlStriebel & JohnTriaxWeidmüllerWeraWihaWindowMaster
Through terminal - Which feed-through terminals should you use for your control cabinet? Are terminal blocks the same as feed-through blocks? Find out here what the differences are between feed-through terminals and what they are used for. In the eibabo® technology store you can get feed-through terminal blocks from all well-known manufacturers such as ABB, Eaton, Eberle, Hager, Metz, Phoenix, Schneider Electric, Siemens, Spelsberg, TE Connectivity, WAGO, Weidmüller, Wieland and Wöhner at great prices and in large quantities. We deliver our range worldwide.Feed-through terminals fulfill several functions and are among the most important components within a control cabinet. It is mounted on the DIN rail. Feed-through terminals are connecting elements between the incoming cables and lines of an installation and the actual control cabinet installation.What is the difference between feed-through terminals and terminal blocks?Feed-through terminals are terminal blocks. 'Terminal block' is a generic term that also includes other types of terminals. These include, for example, fuse terminals and relay terminals. Other terms describe the way a terminal is constructed or its ability to connect the conductors. In these contexts, one often hears about one-tier terminals, three-tier terminals, spring-loaded terminals, push-in terminals or screw terminals. We would like to briefly discuss some of these types in the following sections.Why are feed-through terminals indispensable components in the control cabinet?Feed-through terminals offer the necessary flexibility in the control cabinet to connect rigid incoming cables and lines to the relevant fuses, actuators or other devices. A direct connection without feed-through terminals does not make sense. A clear installation would not be possible. First, the cables and lines are clearly laid out on the terminal blocks. They then lead them from there to the devices in the control cabinet. As a result, the entire installation remains flexible because there are connection points and nodes for checking and changing the system structure.Image: Phoenix PT 2.5-3L feed-through terminalEach connection that is made takes on a function previously defined in the circuit diagram. The installation of the system and the function of individual connections remains traceable. This makes later additions, repairs and maintenance easier. If you want to make changes, these can be done by reconnecting individual wires. The rigid supply lines remain unaffected.And there are other advantages: For example, you can only connect two wires to many modular installation devices. The feed-through terminal blocks offer further advantages here. An example: A fuse is intended to protect several lines. However, you can only connect the cores of one line. In order to also integrate the other lines, you can create clear bridge connections on the feed-through terminals. The electrician can also carry out insulation measurements and other control work directly on the terminal blocks. Troubleshooting is made much easier and faster.What different feed-through terminals are there?Each manufacturer builds the feed-through terminals slightly differently. However, the principle is the same. There are single-level terminals and multi-level terminals. While you can only connect one line in the single-level terminal, several incoming and outgoing lines can be installed in multi-level terminals. Use a three-tier terminal for a three-wire cable. The is designed for connecting the protective conductor, the L conductor and the N conductor. This arrangement saves an enormous amount of space in the control cabinet. Three-tier terminals are mainly found in the control cabinets of private households and in smart home installations. TIP:On some models, the protective conductor has no connection point for the outgoing line. The protective earth contact is made directly by the clamp connection with the DIN rail. Another feature that distinguishes feed-through terminals is the way the wires are fastened. The screw terminal fixes the respective wire with a screw connection. This method takes a comparatively long time, especially when the plant is complex. A spring-loaded terminal makes electrical contact with a mechanical spring. This consists of a bent, flat copper contact. The wire must be inserted through a hole in the copper contact. This is only possible if the contact is clamped with a pointed tool. When the clamping tool is removed, the spring pulls back and the wire is jammed. The connection is released in the same way. The push-in connection is another fastening variant, similar to the spring-loaded terminal. Here, too, a spring presses against the wire. In contrast to the spring-cage connection, installation is tool-free and therefore even faster. The wire is inserted into the spring shaft of the feed-through terminal and the spring locks automatically. If you want to loosen the connection, you need a pointed tool. A small screwdriver is usually sufficient, which bends the retaining spring to the side and loosens the wire. This method saves a lot of time with cores with solid conductors. Wires with flexible conductors can also be attached using wire end sleeves using this method.Solid and flexible veinsYou can connect cables with solid cores and flexible strands in feed-through terminals. Both variants and combinations are permitted. Flexible cores can easily fan out. The use of ferrules makes handling easier with spring connections.The attachment of the wire using cutting terminals is rather rare. Use this variant if your veins are particularly thin. Here, the contact is made through a small cut in the insulation.Depending on the function and area of application, cables and wires with different cross-sections are used in the electrical installation. This affects the feed-through terminals. Appropriate feed-through terminals are available for all common cable cross-sections. Whether a clamp can be used for a specific cross-section is indicated on the clamp. It is usually possible to bridge the L conductor and the N conductor using several feed-through terminals, sometimes on several levels. Suitable cable bridges are available here in the shop.markLabeling the lines helps with orientation, especially when a new employee or another electrical company takes over the system. Some terminals have labeling fields. We recommend using this option and labeling all devices and connections in a meaningful way.The design of the neutral conductor contact is another distinguishing feature. In addition to models for classic wiring, there are feed-through terminals with which an N busbar can be used. The neutral contact on these terminals is designed accordingly so that the connection can be made with one hand. When using a busbar, you need an additional terminal for feeding. To securely fix the rail, use suitable support blocks or the fastening levers on the end clamps at the beginning and end of the row. Longer rails are additionally fixed every 20 cm. To be able to use cables with five cores, use multi-level terminals to connect the outer conductors.How to use feed-through terminals in the KNX area?In addition to the classic feed-through terminals, you can get special terminal blocks for low-voltage or KNX use. These have a different color and can therefore immediately be distinguished from other terminal blocks. This also contributes to order and clarity in the control cabinet. In terms of function, these terminal blocks hardly differ from conventional terminal blocks. You can connect cables with a cross-section of up to 1.5 mm2 to these terminals.Why are feed-through terminals not closed on one side?The available space in the control cabinet is specified in modular widths (HP). These provide information about the capacity of a control cabinet. Feed-through terminals are not manufactured according to this pitch, but as narrow as possible. The narrower a terminal, the more terminals can be installed on a specific area of the DIN rail. Good to know:Feed-through terminals are not closed on one side. The missing cover saves a little space. In relation to the length of a top-hat rail, more terminals can be mounted. Since feed-through terminals are mounted directly next to each other on the DIN rail, there is no danger of touching the contacts on the open sides. Without a side cover, a terminal is narrower. A cover is only attached to the last terminal in a row.Which installation aids and which accessories are available for feed-through terminal blocks?For the construction of a control cabinet, you receive numerous well thought-out components that simplify your work. For feed-through terminals, for example, the cross-bridges and busbars already mentioned are available. In addition, you will receive separator plates and end plates, covers, feeds or end blocks as well as test plugs, fuses, labeling fields and other components.  Catalogue content:In this eibabo® catalogue Terminal blocks > Feed-through terminal block you will find items from the following product groups:Item overview:Base clampBolt clampChangeover relayCompartment clampConnecting combsConnection moduleConnection technologyDistribution blockFeed terminalFour-level clampLightning arrowMarshalling boxMini clampMotor connection terminalMotor output terminalMulti-level clampMulti-wire terminalNeutral terminalPotential clampRelay terminalSocketSpring clampsSpring clipSwitching relayTerminal block connectorThermal voltage terminal blockThrough terminalUniversal clampfrom the following manufacturers:Manufacturer overview catalogue Through terminal:ABBEatonEberleHagerMetzPhoenixSchneider ElectricSiemensSpelsbergTE ConnectivityWAGOWeidmüllerWielandWöhner
Fuse terminal - Are you looking for high-quality and space-saving fuse terminals for your control cabinet? Are terminal blocks the same as fuse blocks? Here you can find out for which use the different fuse terminals are suitable. In the eibabo® technology store, you can obtain fuse clamps inexpensively and in large quantities from all well-known manufacturers. Shipping is worldwide. Fuse terminals are among the most important components in a control cabinet and have several functions. The terminals are snapped onto the top-hat rail of the control cabinet and form the connection between the distribution level and the installation level.What is the difference between fuse terminals and terminal blocks?The terminal block is a feed-through connection for one or more cables in the control cabinet. Depending on the application, it may be beneficial to protect a pass-through connection with a fuse. Fuse terminals consist of a base that takes on the function of the classic terminal block. A fuse is used in an additional fuse link carrier. The fuses may vary depending on the model and use case. Some variants have permanently installed circuit breakers. A fuse terminal block is therefore a terminal block with a separate fuse.Why are fuse terminals one of the most important components in the control cabinet?A large number of cables and lines arrive in a control cabinet. Depending on the complexity of the system, this can be several hundred pieces. These cables and lines are often very rigid and have a large cross-section. A direct connection to the respective fuses, actuators or other devices would therefore be very difficult. At this point, terminal blocks with and without fuses are used. The cables and lines arriving in the control cabinet are first clearly laid out on the terminals. The individual flexible wires can now be routed from the terminals to the respective devices in the control cabinet. This flexibility offers advantages during installation.Image: Wago 281-611 fuse terminalEach connection now established has a specific function. This function is usually defined in a circuit diagram. Even after the control cabinet has been installed, the individual functions must remain traceable. A good overview of the system should be ensured for later extensions, change requests and maintenance work. If you would like to make changes after a while, these can now be done very easily by changing the individual wires. The handling of the rigid supply lines is therefore no longer necessary.You can only connect two wires to many modular installation devices. Here, too, the clamps play to their advantage. If, for example, you have planned several cables for a modular installation device, you can provide these with clear jumpers on the fuse terminals. Control work and measurements can also be carried out very conveniently directly on the terminals. Relocating lines and troubleshooting are made much easier.The safety clamps in detailFuse clamps can be constructed somewhat differently depending on the manufacturer. It is divided into single-level terminals and multi-level terminals. You can only connect one incoming and one outgoing line in the single-deck terminal. Several lines can be connected in multi-level terminals. For example, use a three-tier terminal for a cable with three wires. In this way you connect the protective conductor as well as the L line and the N line. This saves a lot of space and is mainly used in the private environment and in the smart home area. It is usual for the protective conductor contact to be made directly by the clamp connection with the top-hat rail. Other models have a connection point for a protective conductor.Another distinguishing feature is the different ways of attaching a cable. With a screw terminal, the respective wire is attached to the terminal using a classic screw connection. That's safe, but more time consuming. A spring-loaded terminal makes the electrical contact using a mechanical spring. The spring consists of a bent copper contact with a hole. The contact is clamped with a pointed tool and the conductor can be inserted. If you remove the clamping tool, the spring is relieved and the conductor gets stuck.Good to knowFuse clamps are suitable for fastening solid conductors and flexible strands. Both variants are permitted. The use of ferrules makes handling flexible wires easier, as they do not accidentally fan out.There is usually a pressure point for releasing this clamping connection, which can be pressed with a screwdriver or another narrow object. If you use particularly thin wires, insulation displacement terminals can be used. With these, contact is made through a small cut through the insulation.Cables and wires are selected in different cross-sections depending on their function and area of application. This affects the selection of the appropriate fuse terminal. There are suitable fuse terminals for the common cable cross-sections. Which cross-sections are suitable in each case is indicated directly on the terminal. Fuse terminals typically offer the option of bridging the L conductor and the N conductor using several terminal blocks, sometimes on different levels. The matching cross bridges are also available here in the shop. well thought outSome terminals offer fields for labeling. Use this option to keep track of the installation at all times. In addition, a distinction is made between fuse terminals in the design of the neutral conductor contact. Models marked 'NT' have special contacts for connection to an N busbar. When using a busbar, you need a clamp for the infeed as well as support blocks for secure fixing at the beginning and end of the busbar. When using 5-wire cables, you can also use multi-level terminals to connect the phase conductors.What does push-in connection mean for a fuse terminal block?A distinction is currently made between fuse terminals with three connection variants. These are the screw connection, the spring-cage connection and the push-in connection. Which connection variant you choose depends on the area of application, the costs and the expected time savings during installation. The push-in connection is the latest of these three variants. This is similar to the tension spring connection. As with the tension spring, a spring presses against the insulated conductor. The connection is therefore vibration-proof and maintenance-free. In contrast to the tension spring connection, the advantage is the tool-free installation. The wire is simply inserted into the terminal and a spring automatically locks. A standard screwdriver is sufficient to loosen the connection. This means that wiring can be carried out in a significantly shorter time. This applies in particular to cores with solid conductors. Wires with flexible conductors can also be fixed with this method using wire end sleeves. TIP:Please use square crimped ferrules for this. These offer more surface area for the spring to open. Front crimping pliers with square crimping are particularly suitable for working in hard-to-reach places and tight spaces. Small gauge conductors may not be strong enough to open the spring. Here the support of the spring opening with a screwdriver is necessary.Are there other accessories for fuse terminals?Additional accessories are available for most fuse terminals. These include the cross-bridges and busbars already mentioned, test plugs, fuses, separator plates, end plates, feeds or end blocks.Why are fuse terminals open on one side?The available space in the control cabinet is specified in modular widths (HP). These provide information about the capacity of a control cabinet. Fuse clamps are not manufactured according to this grid dimension, but as narrow as possible. The narrower a terminal, the more terminals can be installed on a specific area of the DIN rail. Since fuse terminals are typically mounted directly next to each other on the DIN rail, there is no risk of touching the contacts on the open sides. Without a side cover, a terminal is narrower. A cover is only attached to the last terminal in a row.Are there fuse terminals with a defect indicator?Some models show defects. For example, some fuse terminals have an integrated LED, which is powered by the current present. If there is a defect, the LED does not light up and the installer can quickly localize the problem.  Catalogue content:In this eibabo® catalogue Terminal blocks > Fuse terminal block you will find items from the following product groups:Item overview:AC circuit breakerActive power meterBlade fuse terminalConnection clampControl circuit breakerDevice circuit breakerDirect current machineElectricity meterEnergy meterFour-wire meterFuse clipFuse terminal blockGlass fuse clipGround terminalGuard clampMulti-level clampPlug-in circuit breakerProtective terminal blockReactive power meterScrew cap clampSpring clipSpring terminalTerminal blockTerminal blocksTerminal stripThree-phase meterTransducer counterTransfer blocksfrom the following manufacturers:Manufacturer overview catalogue Fuse terminal:HagerPhoenixSiemensWAGOWeidmüllerWieland
Protective conductor terminal - You take care of the structure of your control cabinet and use various terminal blocks to organize your electrical installation. If you are still missing protective conductor terminals to complete your system, then you have come to the right place in this catalog from our shop. Here you can get all common variants from well-known manufacturers at top conditions. Protective earth terminals belong to the series terminals and were developed for electrical distribution installation. These are capable of accommodating fine-wire, multi-wire or solid conductor cross-sections. Cables with attached ferrules can also be installed in protective conductor terminals.What is a protective conductor?The protective conductor or PE conductor (PE stands for protective earth) is primarily used to connect the masses of electrical devices and conductive elements to earth. The protective conductor is easily recognizable by its green-yellow color.Already knewThe nationwide establishment of the protective conductor in Germany, Austria and Switzerland took several decades. More than 50 years passed from the first proposal to introduce a 'neutral conductor' around 1914 to the uniform definition of the green and yellow marking in 1965.An example: Let's take the classic NYM-J 3x1.5 mm² sheathed cable. Two wires carry current here, the one with the blue insulation and the one with the brown insulation. The third wire is the green-yellow protective conductor, which normally does not carry any current. If a current-carrying phase touches a metallic housing, a so-called residual current flows through it. If there is no protective conductor, the housing is not grounded and the residual current cannot flow. If a person touches the housing, the current is returned to earth via their body. This not only results in an unpleasant discharge, but in some cases leads to burns or, in extreme cases, to an electric shock, which can lead to cardiac arrest. However, if a protective conductor is properly installed, the enclosure is connected to earth through it. The residual current can thus flow off via the protective conductor.In the control cabinet, the incoming protective conductors are sorted and fastened via protective conductor terminals.What is a terminal block or a feed-through terminal block for protective conductors?Terminal blocks fulfill several functions and are among the most important components within a control cabinet. It is mounted on the DIN rail. In general, terminal blocks are connecting elements between the incoming cables and lines of an installation and the actual control cabinet installation. Technically, the special protective conductor clamps do not differ from the clamps for external conductors or neutral conductors, but they are specially designed to accommodate the green-yellow protective conductor. TIPMany ground terminals also have a coloured, mostly green-yellow housing. Their purpose is therefore unmistakable and the terminals in the control cabinet can be recognized as such at first glance. Feed-through terminals are also often mentioned. 'Terminal block' is a generic term that also includes other types of terminals. These include, for example, fuse terminals and relay terminals. Other terms describe the way a terminal is constructed or its ability to connect the conductors. In this context one often hears about one-tier terminals, three-tier terminals, spring-loaded terminals, push-in terminals or screw terminals.Why should I use protective conductor terminals?Feed-through terminals for protective conductors are required connecting elements in the control cabinet between the rigid incoming cables or lines and the following control cabinet installation. These offer the necessary flexibility to connect the protective conductors to the end devices easily and clearly. A clear installation would not be possible without the feed-through terminals. In practice, the incoming cables and lines are clearly laid out on the terminals and the individual wires then lead from there to the devices in the control cabinet. This keeps the entire installation flexible. There are connection points and nodes for checking and changing the system structure.Image: WAGO 2002-3207 three-level terminalEach protective conductor connection that is made assumes a protective function specified in the circuit diagram. This means that both the installation of the system and the function of individual connections are always traceable. This makes later maintenance, additions or repairs easier. Changes are possible at any time by reconnecting individual lines. The rigid supply lines remain unaffected.What is the difference between protective conductor terminals?Each manufacturer builds the protective conductor terminals slightly differently. However, the principle is the same. There are single-level clamps and multi-level clamps. While you can only connect one protective wire in the single-level terminal, several incoming and outgoing lines can be installed in multi-level terminals. A multi-level arrangement saves an enormous amount of space in the control cabinet.Another distinguishing feature is the way the wires are attached. With a screw terminal, the respective wire is fixed with a screw connection. This method is comparatively complex and takes a lot of time. Especially when the system is complex, you save a lot of time by using a spring-loaded terminal. This variant makes the electrical contact using a spring. The spring usually consists of a bent, flat copper contact. The protective conductor must be inserted through a hole in the copper contact. This is only possible if the contact is clamped with a pointed tool. When the clamping tool is removed, the spring pulls back and the protective conductor is jammed. This connection is released in the same way. Push-in mounting is another connection variant. This is similar to the spring-loaded terminal. But unlike the spring-loaded connection, installation is tool-free and therefore even faster. The protective conductor is inserted into the spring shaft of the terminal and the spring locks automatically. You need a tool to loosen the connection. Bend the retaining spring to the side with a small screwdriver and the protective conductor can be loosened. This method saves a lot of time, especially for cores with solid conductors. The use of ferrules is recommended for cores with flexible conductors (strands). Fastening the conductors using insulation displacement terminals is rather rare. Use this variant if your conductors are particularly thin. Here, the contact is made through a small cut in the insulation. Cheaper in a setProtective conductor terminal blocks are available individually or in sets of 25, 40 or 50 at an attractive price advantage. The cross-section of the protective conductor also affects the protective conductor terminal. Here in the shop you can get the right protective conductor terminals for all common cable cross-sections. Whether a clamp can be used for a specific cross-section is usually stated on the clamp.Why are protective conductor terminals not closed on one side?The space in a control cabinet is almost always tight. The storage capacity of a control cabinet is generally specified in module widths (HP). Protective conductor terminals are not manufactured according to this grid dimension, but as narrow as possible. The width is determined by the design of the electrical connection and the cable cross-section. Since the terminals are mounted directly in line, there is no risk of touching the contacts on the open sides. Without the second side cover, a terminal is slightly narrower. A cover is only attached to the last terminal in a row. The narrower the individual terminal is, the more terminals can be accommodated on a specific section of the DIN rail.You can buy protective conductor terminals quickly and cheaply in the eibabo® technology store ? your competence center for smart homes and electrical installations. We offer branded products from ABB, Dehn, Hager, Phoenix, Pollmann, Schneider Electric, Siemens, WAGO, Weidmüller, Wieland in large quantities. We deliver our range worldwide.  Catalogue content:In this eibabo® catalogue Terminal blocks > Ground terminal block you will find items from the following product groups:Item overview:Actuator terminalBase clampsBuilt-in housingCage clampConnection technologyFeed terminalFeed-through terminal blockFour-level clampGround railGround terminalGround wire disconnect terminalInformation technologyInitiator terminalInstallation clampInstallation clampsMulti-level clampProtective conductorShield connection technologySingle clampSpring clampsSpring clipTerminal blocksTerminal stripTest disconnect terminalsThree-wire terminalThrough terminalTwin clampUniversal clampfrom the following manufacturers:Manufacturer overview catalogue Protective conductor terminal:ABBDehnHagerPhoenixPollmannSchneider ElectricSiemensWAGOWeidmüllerWieland
Multi-level installation terminal - Which multilevel installation terminals are there and what functions do they have in the control cabinet? Are multi-level installation terminals the same as feed-through terminals? What's the difference? How is the assembly done? Here you will find answers to many questions. In the eibabo® technology store you can get multi-level installation terminals from all well-known manufacturers such as ABB, Hager, Phoenix, Siemens, WAGO, Weidmüller and Wieland at top conditions and in large quantities. Delivery is worldwide, fast and safe.Installation multi-level terminals are among the most important components within a control cabinet and fulfill several functions. The terminals represent connecting elements between the incoming cables and lines of an installation and the actual control cabinet installation. The assembly is carried out on the DIN rail.What are installation multi-level terminals?Installation multi-level terminals are multi-pole terminal blocks. The term 'terminal block' not only includes multi-level installation terminals, but also, for example, feed-through terminals, fuse terminals and relay terminals. Surely you have already heard or read about single-level clamps and triple-level clamps. These are other common names for feed-through terminals and tier terminals. When it comes to spring-loaded terminals, push-in terminals or screw terminals, the focus is on the type of wire attachment. But these terminals can also be counted among the multi-level installation terminals. The main feature of the installation multi-level terminals is the potential entries arranged one above the other.What is the difference to a feed-through terminal?The differences between feed-through terminals and multi-level terminals are small and mainly lie in the number and arrangement of the potential entries. A simple feed-through terminal usually only has one potential, while tier terminals can have several potentials. This saves space compared to feed-through terminals, since the feed-through terminals are arranged next to each other as individual terminals. A clear assignment of the different cores is guaranteed by the colored conductor entry openings in multi-level terminal blocks. Tier terminals are therefore more complex feed-through terminals and are often equipped with special functions for building installation, for example with N disconnect terminals, equipotential bonding terminals or distribution feed terminals.How important are multi-level installation terminals for control cabinet construction?With multi-level installation terminals, you achieve enormous flexibility in control cabinet construction. Rigid incoming cables and lines are clearly laid out on the terminals. You thus create flexible connection points to connect the actuators, fuses or other devices in the control cabinet with individual wires. This keeps the entire installation flexible, as there are nodes for testing and changing the entire system. A direct connection without installation multi-level terminals would not be clear and would lead to considerable effort in the event of changes.Image: WAGO 2003-7641 Multi-level installation terminalWith the implementation of a well-structured circuit diagram, each link created in this way takes on a comprehensible function. The installation of the system remains clear. Additions, repairs and maintenance in the future are made easier. Changes to the system are always possible by reconnecting individual wires. The rigid supply lines remain untouched.For a better overviewYou can attach labeling fields to some tier terminals. We recommend using this. Label all devices and connections sensibly. Matching labeling fields are available here in the shop.But this structure offers other advantages. During maintenance work, the electrician can carry out his insulation measurements and other control work directly on the tier terminals. This saves time and money when troubleshooting. For example, many DIN rail mounted devices (REG) only have two contact points for connecting the cables. With the use of installation clamps, you can expand this if necessary. An example: You want to protect several lines with one fuse. Unfortunately, you can only connect the wires from one line directly to the fuse. What can you do? In order to link further lines, establish clear jumper connections on the installation multi-level terminals.How can the cables be attached to the installation multi-level clamps?Each manufacturer builds the multi-level installation terminal blocks slightly differently. However, the principle is the same. While single-level terminals connect only one line as simple feed-through terminals, the installation of several incoming and outgoing lines is possible in multi-level terminals / tier terminals. A three-tier terminal block is designed for the connection of the protective conductor, the N line and the L line. The arrangement in tiers saves a lot of space in the control cabinet. Multi-level terminal blocks are used very frequently, especially in the smaller switch cabinets in private households and in smart home installations. TIP:If a terminal block does not have a connection point for the outgoing protective conductor, snapping it onto the DIN rail ensures 100 percent contact with the protective conductor contact foot. The types of attachment for the cables represent a special distinguishing feature. There are screw terminals, spring-loaded terminals and push-in terminals.With the screw terminal, a screw fixes the respective wire. This method is comparatively time-consuming, especially when dealing with a large system with many connections. Fastening with a screw must be done carefully so as not to damage the solid or flexible cable too much.With the spring-loaded terminal, the electrical contact is made with a mechanical metal spring. The spring is in the form of a curved flat contact with a hole. The wire must be put through the hole to connect. This is only possible if the spring is stretched with a pointed tool. The line will bind as soon as the tool is removed and the spring relaxes. The connection is released in the same way.The push-in connection is a variant of the spring-loaded terminal. Here, too, a spring-loaded metal contact presses against the wire. Installation is tool-free. The wire is inserted into the spring shaft of the multi-level terminal block and the contact is locked directly by the spring force. You need a tool to loosen the connection. Using a small screwdriver, bend the spring contact to the side and the wire will come loose. These connections save a lot of time with cables with solid conductors. Wires with flexible strands can also be fixed using this method, but they should be stabilized with a ferrule.The attachment of the cores using insulation displacement terminals is rare and is only used if your cable is particularly thin. With this method, the conductive contact is made by cutting the wire insulation.Special features of the neutral conductor contactIn addition to models with screw attachment and spring clamps, there are multi-level terminals where you can use an N busbar. With these terminals, the neutral conductor contact is designed in such a way that a busbar can be connected with a flick of the wrist. In this case you need an additional terminal for feeding. To ensure that the rail is held securely, use suitable trestles at the beginning and end of the row. Some clamps also offer mounting levers. Please also fix longer rails every 20 centimetres.Are there different tier terminals for the different cable cross-sections?Cables and lines with different cross-sections are used in electrical installations. This affects the tier terminals. Appropriate terminals are available for all common cable cross-sections. The suitability for certain cross-sections is indicated on the terminals. In addition, there is the option of bridging the N lines and the L lines via several tier terminals, sometimes on several levels. Suitable cable bridges are available here in the shop.Why are multi-level installation terminals open on one side?As you may know, the space available in the control cabinet is specified in modular widths (TE). The specification of the pitch units provides information about the capacity of a control cabinet and helps with the purchase decision. Installation multi-level terminals do not correspond to this grid dimension, but are manufactured as narrow as possible. So the narrower the individual terminal is, the more terminals you can install on a certain area of the DIN rail. Good to know:A pitch unit is 18 millimeters according to DIN 43880:1988-12. The installation width of the devices is 17.5 millimeters (deviation plus 0.5 millimeters) and its multiples. Installation multi-level terminals are typically mounted directly next to each other on the mounting rail. There is therefore no risk of touching the contacts on the open sides. This saves material in production and some space. Without a side cover, a terminal is slightly narrower. Only the last terminal in a row is covered.What are N disconnect terminals?Electrical systems must be checked regularly. The insulation measurement (e.g. between neutral conductor and protective conductor) is an essential part of such a test. As a result, possible insulation faults, which can cause fires and the associated damage to persons or property, are detected at an early stage. To do this, the neutral wire of each circuit must be disconnected. The use of neutral conductor disconnect terminals is therefore necessary in this country in public facilities, workplaces in trade and industry and in fire-endangered premises.  Catalogue content:In this eibabo® catalogue Terminal blocks > Multi level installation terminal block you will find items from the following product groups:Item overview:Cage clampDouble clampFeed blockFeed-through terminal blockFuse plugGround terminalInsta clampInstallation clampMulti-level clampPhase terminal blockSingle clampSpring clampSpring clipSpring terminalTerminal blockThree-wire terminalTier clampTripod clampUniversal clampfrom the following manufacturers:Manufacturer overview catalogue Multi-level installation terminal:ABBHagerPhoenixSiemensWAGOWeidmüllerWieland
Meter field - With the use of meter locations within your distribution cabinet, you provide for the connection of one or more meters to the main power supply network of your building. Meter locations are standardized and their application regulated. They consist of an upper connection space with a height of 300 mm, the actual meter field with a total height of 450 mm and a lower connection space with a height of 300 mm. Space for additional applications is provided in the meter field. Such a complete meter space has a standard width of 250 mm. Here in the eibabo online shop you can get high-quality meter fields that conform to standards for connecting many meters and a wide variety of parameters. Therefore, use the "Detailed search" in the "Filter" drop-down menu of a respective final catalog for a quick and very detailed search. Please always have the installation carried out by a specialist, because he knows exactly which components must be accommodated in the upper connection space, what can be installed in the meter panel and which application rules apply to the lower connection space.Catalogue content:In this eibabo® catalogue Meter panels > Meter panel you will find items from the following product groups:Item overview:Alternating currentComplete fieldConverter fieldCounter crossCounter distributionCounter fieldCounter space complete fieldDistribution cabinetDSO meter fieldEHZ fieldFeedFeedback fieldInstallation kitInstallation setMeter boxMeter connection cassetteMeter converter cabinetMeter panelPatch panelPhotovoltaic fieldPV fieldReserve fieldSpecial measurementStandard field counter fieldTelecommunications fieldTransducer measurementTransducer measuring fieldWall counter panelfrom the following manufacturers:Manufacturer overview catalogue Meter field:ABNEatonHagerSiemensStriebel & John
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Spelsberg - TK PC 99-6-m - Empty Case - Switchgear cabinet 57x94x94mm IP66 TK PC 99-6-m
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plus shipping
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Rittal - DK 7480.035 - Power box 19T - Accessory for switchgear cabinet DK 7480.035
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