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Stripping crimping machine - As a reliable craftsman or as a reliable craftswoman, you are always anxious to provide an excellent quality of work. In the field of electrical installation, this naturally also includes the optimal assembly of cables and lines to be laid. The eibabo online shop now offers you numerous stripping and crimping pliers that make work very easy. However, if you have to process large quantities of cables and wires every day, investing in a stripping and crimping machine can definitely be worthwhile. With these devices, the conductor is stripped and the ferrule is then crimped in just one operation and within seconds. With the help of such a device, more than 1000 line and cable ends can easily be prepared for their intended use per hour. The machines are configured in such a way that you can switch to a different cable cross-section in two simple steps. Optimize your work efficiency with the high-quality stripping and crimping machines from the eibabo technology store.Catalogue content:In this eibabo® catalogue Tools (Press, cut and isolate) > Stripping and crimping machine you will find items from the following product groups:Item overview:Assembly toolAuxiliary toolBusbar processingCrimping machineCutting machineCutting toolFerrule crimping insertStrip and crimp toolStripping and crimping machineStripping machinesStripping toolsTool for electriciansWire end treatment toolfrom the following manufacturers:Manufacturer overview catalogue Stripping crimping machine:PhoenixRittal
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
Crimping tool - Tired of frayed cable ends? Would you like to securely attach cable lugs or ferrules so that your wires are permanently fixed in screw terminals or spring terminals? With the high-quality pressing tools from the eibabo® shop, well-functioning contact connections can be made in no time at all. Manual, battery-powered and electric, hydraulic or pneumatic crimping tools are in daily use and are part of the basic equipment of a good electrician. Even the private do-it-yourselfer achieves better results if the tools used are easy to use and precisely cut, strip or press. In this article, we will introduce you to the most important pressing tools and give tips on what to look out for when buying one. Here you will find numerous high-quality crimping pliers, cable lug pliers, notched pliers, contact crimping pliers and other crimping tools at top conditions. All products in the shop are often used by us and our partners for years and can be recommended without reservation.What is crimping?Most of the items presented here are special tools for performing a wide variety of activities. But they all have one thing in common: the tools create a connection between two components by plastically deforming them. This deformation can be caused by pressing, squeezing, piercing, flanging or folding and is referred to as 'crimping'. All of these tools are by definition crimping tools, although 'crimping pliers' are often referred to as a separate product group. We mainly use the term 'press tools'.What is the difference between pressing tools?Pressing tools are different devices that permanently connect two materials or components through deformation. One of the most common applications is attaching connectors to the end of electrical wires. But many pressing tools are multifunctional. Depending on the application, you can also bend, cut or strip materials with it. The tools are designed in such a way that they are suitable for specific cable diameters, conductor cross-sections or pipe sizes in order to guarantee secure connections. There is typically no provision for the connections to be released.The biggest difference between the individual pressing tools lies in the type of function or operation. Each type has its advantages and disadvantages. When machining smaller components, for example, precision is often important. It is best to use a manually operated pressing tool here. When you need more power, hydraulic and electric models make your job easier.hand toolsManual devices are often small, light and intended for the tool case. These are in the form of pliers and are suitable for daily use on the construction site and for processing smaller components.Equipment for the workbenchBench tools are the opposite of manual tools. These are big and heavy and have power. Permanently mounted on the workbench, these can be operated electrically or manually with levers and rotary devices. Good to knowWith the manual and battery-operated devices from our shop, you are already optimally equipped for conventional electrical installations. More complex tools are more for commercial and industrial use. Electrical appliancesElectrically operated pressing tools are usually equipped with rechargeable batteries and do the work without much effort. Wired models are rare. Although these devices are not for the pocket, they are intended for mobile use on the construction site.Pneumatic pressing toolsPneumatically operated pressing tools require little effort. The compression force is provided by compressed air. These devices offer maximum performance and are suitable for demanding installations, repair services and maintenance work. Here we distinguish between small mobile devices and permanently installed models for the workshop.Hydraulic pressing toolsThese models are similar to the pneumatic variants. Here, too, there are mobile and fixed pressing tools. However, the compression force is provided by hydraulic fluid.The pliers for ferrulesA bare and unprotected wire end is not optimal for the connection with screw terminals, spring terminals or similar. This applies in particular to flexible strands, which consist of many thin wires. These ends will fray in screw terminals, become damaged, and lack the strength to be plugged into spring terminals. Wire-end ferrules were developed for this purpose, which give the wire a firm shape and improve the resistance of the wires to oxidation. This increases the longevity and reliability of a connection. A ferrule is a soft metal tube that is crimped onto the end of a stripped wire. Most ferrules are made of copper and are tinned, sometimes gold or silver plated. This serves to protect against corrosion. The diameter and length of a ferrule is determined by the thickness of the wire.NoticeFerrules are color coded for the maximum wire sizes. However, there are different, sometimes contradicting color codes. Please ensure the correct size to ensure secure connections.A ferrule is usually wider on one side to make it easier to put it on the wire. This side is covered with a plastic cable entry sleeve (protective collar). The protective collar serves as a transition between the core insulation and the ferrule. The ferrule pliers only crimp the copper part with the wire while leaving the plastic sleeve around the insulation undamaged.cable lug pliersIn addition to ferrules, cable lugs are often attached to the wires. Cable lugs are similar to ferrules. While a ferrule only encloses and protects the wire, cable lugs also have a special attachment option for the cable. This can be, for example:Ring Eyelets: The connection part consists of a flat contact surface and is in the form of an annular eyelet completely closed in a circle. There are versions with one hole or multiple holes. Cable lugs with multiple holes prevent rotation or movement of the cable lug.Clevis: The connecting portion of a fork is in the shape of a two-pronged fork. The connection point here is not a circular closed hole, but open on one side.Special shapes: There are cable lugs in special shapes, such as flat contact surfaces (with and without side guides) for sliding onto suitable mating contacts. TIP:Multifunction tools offer the option of changing the press inserts. Among other things, this allows you to process various wire-end ferrules and cable lugs with just one device. Choosing the right cable lug (and thus the choice of the correct cable lug pliers) also depends on the conductor class. You can find more information in the category 'cable lugs'.RJ45 crimping pliersRJ45 crimping pliers are specially designed for processing non-assembled network cables and telephone lines. The pliers are used to press the Western plug (RJ45) with the inserted wires of the cables. These pliers often have an integrated flat cable cutter and a possibility for stripping.Are there pressing tools for extremely thin wire cross-sections?Working with particularly thin cables does not forgive any mistakes. Problems can even arise with the classic manual press tools. For such requirements, use a press tool with a ratchet lock. This locking device in connection with an automatic cross-section adjustment controls the pressing process. Human errors are excluded and uniformly controlled pressing results are guaranteed.Can I squeeze wire ends with pliers?The pressing and squeezing of ferrules or cable lugs with conventional pliers is not recommended. You cannot produce a safe, clean and durable cold-weld joint with it. A bad crimping result means, for example, that the sleeve or the cable lug is loose and comes off. Air and moisture could enter the connection. Then corrosion occurs and the electrical conductivity would be impaired.Image: Klauke K 05 D pressing toolIsn't soldering much more stable than pressing?A proper press connection usually provides a stronger and more reliable connection than soldering. Soldered joints can break under certain circumstances, while pressed cable ends are significantly more robust. Press connections can be made more easily with cables and lines that have already been laid. Soldering in dark and hard-to-reach places is difficult.How do I release a press connection?It is not intended to release a press connection again. If you undo a press fit, the second try is unlikely to hold reliably. In these cases, shorten the cable or line and make a new press connection.Which pressing tools are the best?Professionals and ambitious do-it-yourselfers will find professional-quality crimping tools and tools for crimping, cutting and stripping at eibabo®. In addition to pressing tools of all kinds, we also have a wide range of accessories, spare parts and additional parts in our range. The pressing tools available here offer you efficient, high-quality technology. Well-known manufacturers include Cimco, Wiha, Klauke, Weidmüller, Harting, Knipex, Phoenix Contact as well as ABB Stotz and WAGO Kontakttechnik.  Catalogue content:In this eibabo® catalogue Tools (Press, cut and isolate) > Crimp tool cable lugs, cable end sleeves, screen connection you will find items from the following product groups:Item overview:Arbor press pliersBattery pressCable lug pliersClicknCrimpConnecting sleeveConnection toolsConnectorCordless cutterCrimp toolCutting toolFerrulesFinder springFour-indent crimping pliersFront pressing pliersHand toolHydraulic press headManual hydraulicsPneumatic toolPress diePress insertPressing pliers setPressing toolRoller press pliersSpecial toolStripping toolUniversal crimping pliersWire end pliersWire stripperfrom the following manufacturers:Manufacturer overview catalogue Crimping tool:ABBCimcoEricoHartingIntercableIntercable ToolsKlaukeKnipexLappPhoenixRittalSchneider ElectricStäubliTE Con.Energy+Ind/EUWAGOWeidmüllerWielandWiha
Cable shears - It can be tricky to cut a strong or rigid cable with classic scissors, pliers or a utility knife. Save yourself the trouble and grab a high-quality and inexpensive cable cutter from the eibabo® shop. In the following article we describe the different models and support you in your purchase decision.With a good pair of cable cutters, you can cut your wires and cables to the right size. Depending on the requirements and thickness of the cable, different cable cutters are used. While in the do-it-yourself sector scissors are often sufficient for cables with a diameter of up to 16 mm, professionals in the industrial sector need tools with a higher cutting capacity. Here cables can have a diameter of 50 mm and more. Especially if you have a lot to do with electrical installations professionally, the use of good cable cutters is essential. This ensures a precise cut without squeezing the veins. Hydraulic cordless cable cutters are also available in the eibabo® shop for particularly demanding tasks. The high-quality tools are mainly designed for copper and aluminum cables. Please note that not every pair of scissors is suitable for cutting steel and steel wire.What do I use cable cutters for?Cable shears (also wire cutters) are used when electrical wires and cables need to be cut cleanly. Depending on the task, the insulation or the wire should not be damaged. Cable cutters are suitable for use in new installations as well as for maintenance work and repairs to electrical installations.Image: Klauke K 106/2 cable shearsWhat are the advantages of a cable cutter?Cable cutters are designed to properly cut wire or cable. It is important to avoid or minimize damage to the insulation or the inner conductor of a wire. A clean cut makes further work easier and increases the subsequent quality of an electrical connection. If unsuitable tools are used, there is a risk of damage, cracks and cuts in the insulation as well as unclean cut edges. This can affect the reliability of an insulation. If the inner conductor is damaged, its conductivity may be disrupted or the strength of a connection cannot be guaranteed. Cable shears therefore have specially shaped cutting jaws, which are optimized for the respective task. This largely prevents slipping or accidental damage during the cut.In addition, manufacturers are beginning to expand the functionality of the cable shears for other electrical installation applications. The tools are not only used for cutting, but also for stripping or crimping ferrules. A multi-tool increases productivity and saves weight in the tool belt.With which core cross-sections or cable strengths do cable cutters work?Each cable cutter is designed for use within a specific material thickness range. Some are designed in such a way that they can be used particularly well for fine-wire cables. Others are optimized for solid conductors. In the eibabo® shop you can get cable cutters that can process cable diameters of over 100 mm or cable cross-sections of over 3,000 mm². TIP:Pay attention to the type of conductor material that cable snips or wire cutters are designed for. A wire is not always made of copper or aluminum. There are suitable tools for cutting special conductor materials. Please refer to the product description or the data sheet for the tool.How do the cable cutters differ from each other?Cable shears and wire cutters in our range are divided into:hand toolsHand tools with ratchet functionbattery powered hydraulic tools Each of these types differs significantly from the others and offers individual advantages. The simplest models are the classic hand tools. Hand-operated cable shears cut cables, lines and wires by squeezing the cutting jaws once. Ratcheting models cut through thicker cables. If it is difficult or impossible to separate with one hand, you may have to start several times. Ratchet tools are ideal for this. The cutting blade remains in position after the first 'stroke' and holds the uncut cable. The handle opens again and you can start the second (or third...) 'stroke' until the material is severed. The battery-powered hydraulic tools are used for particularly demanding tasks. These devices generate enormous force and can also cut through cables with steel wire sheathing, for example. Their area of application is in the professional, industrial environment. Hydraulic support is usually not required for domestic use.What are the advantages of ratchet shears?Whether a cable cutter with a ratchet is advantageous for you depends on your individual requirements. Are you a hobbyist who occasionally cuts through standard cables in your free time? Then you probably don't need ratcheting shears. However, if you have to work regularly with a lot of strong cables for work or other reasons, using a cable cutter with a ratchet can offer some advantages. The biggest advantage lies in the fact that it makes work easier when there are many cuts through solid cables or wires. Less effort is required and you don't get tired as quickly. A cable cutter with a ratchet also ensures a clean cut, as it can cut through massive cross-sections and diameters without readjustment. Attempting to cut very thick cables with a pair of simple cable cutters would likely require multiple attempts. This would result in damage to the insulation and the inner conductors.Notice:Ratchet shears are not designed for very thin cables and wires. Due to the more complex cutting technology, the weight is slightly higher and handling is more cumbersome than with simple hand tools.In these cases, we recommend using a simple hand tool. Experience has shown that this works faster and more precisely.How do I choose the right cable shears?The selection of the optimal cable shears is mainly influenced by two things - the type of material to be cut and its thickness. There are cable cutters that process smaller diameters. Others are better suited for larger diameters. Once you have decided on a material thickness, choose a simple model, a corresponding tool with a ratchet function or a multi-function tool. TIP:Daily use of a cable cutter inevitably leads to wear and tear. In order not to have to buy a completely new tool, there are replacement cutting heads for some models. With this information, you should be able to choose a tool that suits your needs.Who makes the best cable cutters?The market leaders in the field of cable cutting technology include, for example, Cimco, Klauke and Knipex. But ABB, Erico, Intercable, Phoenix, WAGO, Weidmüller and Wiha also produce high-quality tools. You can find cable cutters from these manufacturers in this catalog from the eibabo® shop at top conditions.  Catalogue content:In this eibabo® catalogue Tools (Press, cut and isolate) > Cable shears you will find items from the following product groups:Item overview:Cable cutting deviceCable cutting toolCable knifeCable pincersCable separatorCable shearsConnection toolsCordless cutterCutterCutting headElectrician's scissorsHand cable cutterHand cable pliersHand toolHydraulic cutterHydraulic cutting headHydraulic press headMulti cutterMultifunction cable scissorsPincersRemote controlledReplacement cutting headSafety side cuttersSecurity cable cutterSpare partStandard side cuttersStrippingWire cutterfrom the following manufacturers:Manufacturer overview catalogue Cable shears:ABBCimcoIntercableKlaukeKnipexPhoenixWAGOWeidmüllerWiha
Stripping tool - The installation of electrical cables requires a lot of manual work. One of them is stripping the respective cable ends. How do you actually go about this step? Do you take a cutter knife and cut through the insulator with the sharp blade by feel? Then it has certainly happened to you that you either removed too little or too much of the insulating layer, damaged the inner core or accidentally scratched the insulator of a neighboring conductor. In short, using a simple knife or undesigned pliers usually leads to unsatisfactory and imprecise results. In addition, the work takes significantly longer than with professional stripping tools and there is a risk of injuring yourself. With high-quality dismantling tools, cable knives, dismantling strippers or stripping pliers from the eibabo technology store, stripping is child's play and the cable ends are perfectly prepared for tinning or for attaching cable lugs and ferrules. A small investment that will improve the quality of your work and significantly increase your efficiency.Catalogue content:In this eibabo® catalogue Tools (Press, cut and isolate) > Cable stripping tool you will find items from the following product groups:Item overview:Cable knifeCable stripperCable stripping knifeCable stripping toolCan stripperCoax stripperCoax stripping toolCoax stripping tool 2-stageCoaxial cable stripping toolConductor Extraction ToolFlat cable stripperInsulation cutterMounting framePrecision Wire StripperPressing pliersRound cable stripperSales AidSheath stripperSignal transmissionStripperStripper toolStrippingStripping pliersStripping toolStripping/dismantling toolTongsWire stripperWire stripper pliersfrom the following manufacturers:Manufacturer overview catalogue Stripping tool:ABBCellpackCimcoDEHNEricoGrotheHartingIndexaIntercableIntercable ToolsKaiserKlaukeKnipexKreilingLappOBOPhoenixSchneider ElectricSiemensTelevesTriaxWAGOWeidmüllerWihaWisi
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
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
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