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Legrand Cablofil - Cablofil is a subsidiary of the Legrand Group and specializes in products for cable management in residential construction. It is one of the most popular cable management systems on the market. The so-called mesh cable tray is the most important product in the Cablofil portfolio, which is supplemented by numerous add-on, fastening and expansion elements. Everything you need to set up a cable management system is available from eibmarkt® in the eibabo® shops. Cablofil products are made from welded steel wires and meet the highest standards of durability and quality. High demands are placed on safety and economy. Fast and easy connection solutions without nuts and bolts ensure time savings in any environment with maximum strength. The system convinces with a reinforced floor and has a galvanized base frame. Since its introduction, the system has proven to be the ideal choice for cable management in almost any type of installation. It was first launched in Europe in 1972 and is now in use around the world. Cablofil has grown into a company with more than 1200 distributors in over 60 countries. Its role as a leader in the cable management industry is evidenced by numerous technical certifications and independent reviews. The Cablofil products are not only appreciated by our customers and installation partners from the electrical engineering industry, but also by commercial craftsmen and classic do-it-yourselfers. We ourselves have regularly installed them in our projects and can confirm the advantages mentioned. In the range of the eibabo® technology store you will find a large number of Cablofil products, such as cable trays, heavy-duty mesh trays, brackets, ceiling and wall brackets, U-supports, heavy-duty brackets, earthing clamps, quick connectors, fastening kits, clamping pieces and other assembly accessories. Depending on requirements, the installation of semi-circular arches, corner pieces and hanging supports is recommended.

Found in shop categories: 9

Earthed plug - Electricity is essential in all areas of daily life these days. Whether household appliances, entertainment or even driving a car - nothing works without electricity. But not only the use of electricity is important, the secure connection of the electrical devices is also crucial. SCHUKO plugs are used here. These plugs are reliable and guarantee a stable connection between the devices and the mains. SCHUKO is the abbreviation for protective contact and a system of plugs and sockets. The SCHUKO plug is part of this plug-in system, which can be plugged in and unplugged under electrical voltage or load.What is a SCHUKO plug?SCHUKO is a system of mains plugs and sockets of the CEE 7/4 standard. These are also known as Type F connectors. Type F plugs are used, for example, in Germany, the Netherlands, Portugal, Austria, Spain, Sweden, Finland, Norway and many countries in Eastern Europe.Already knewThe grounded SCHUKO plug in its current form was patented in 1929 by Siemens-Schuckertwerke AG. This was preceded by a patent by Albert Büttner, who designed the basic shape of the plug and held all the necessary parts together with just a single screw.SCHUKO plugs and the associated sockets are usually equipped with a protective earth and are intended for use in 230-volt networks with a current of 16 amps. SCHUKO plugs and sockets are unpolarized. That means: outer conductor and neutral conductor are randomly connected. In addition to the outer conductor and the neutral conductor, the system has a green-yellow protective conductor, which takes over the protective earthing with two flat contacts at the top and bottom of the plug. When plugged into a socket, the SCHUKO plug closes the connection cavity of the socket and thus prevents contact with conductive components when making contact. First, a ground is established between the flat contacts of the plug and the grounding terminals located in the socket. Only then do the phase conductor connections and the neutral conductor connections come into contact with one another. And it is precisely this fact that is special about the SCHUKO system and gives it its name: the protective contact connection diverts dangerous voltages as soon as the electrical circuit is closed by the other two poles. This design with leading protective contact ensures that there are no dangerous voltages on accessible parts of the device.Additional lateral guide slots in the socket are required for reasons of stability. These enable the use of large and heavy SCHUKO plugs, for example with a built-in transformer or timer.Image: Mennekes 10837 Schuko plugBasic information on the typification of plugs and socketsThe plugs and sockets that exist worldwide are numerous and correspondingly different. Their design and structure is often historical and adapted to the conditions of the power grid in the respective region. Worldwide, we distinguish between two standards for wired AC transmission. On the one hand, this is the 230 volt standard with a frequency of 50 Hertz / 60 Hertz. On the other hand, it is the 110 volt technology with a frequency of 50 Hertz / 60 Hertz. Based on this, individual countries and manufacturing companies began to offer their own connectors. This led to a high degree of individualization. The introduction of a globally standardized plug system failed on the one hand because of political sensitivities, wars and conflicts and, of course, because of the two already established transmission standards. Because there would be a risk of devices being damaged or short circuits or fires occurring if a device were connected to a network with a voltage other than its nominal value. As a result, the development of adapters and transformers was accepted instead to achieve cross-system international compatibility.NoticeThere are currently 15 plug / socket standards worldwide, referred to as plug types A to O. Here in Central Europe, types C, E and F are used, some of which are also compatible with each other.The Type-C plug is an unearthed two-pronged plug that used to be standard in most European countries as well as in the countries of the former USSR. This type is considered the forerunner of today's French type E and the German type F. Type C plugs are still often found in the form of flat plugs on many devices such as fairy lights, floor lamps, razors, hair dryers and other small household appliances. In the international CEE system, this plug shape is referred to as the CEE 7/16 standard. Type C plugs fit perfectly into a Type F SCHUKO socket.With the French type E plug, there is a grounding contact for the protective conductor in the center above the pins for the phase conductor and neutral conductor. The counterpart to this is a pin that protrudes from the French Type E socket. Classic plugs of this type are usually round and do not fit into the Type F SCHUKO socket because the lateral guide grooves and the recess for the earthing contacts attached at the top and bottom are missing. However, these are only very rarely found and are increasingly being replaced by CEE 7/7 plugs, which fit both type E sockets and type F SCHUKO sockets.The German Type F SCHUKO plug is widely used throughout Europe, as well as in Russia, Belarus and Ukraine. This is characterized by the grounding clamps at the top and bottom and by a guide groove on the right and left. In the international CEE system, this plug shape is referred to as the CEE 7/4 standard and is not compatible with the French Type E socket due to the lack of a recess for the grounding pin. This is why it is now considered obsolete. In the course of a homogenization of the European market, this plug is often replaced by the CEE 7/7 plug, which is a hybrid E/F plug. The CEE-7/7 SCHUKO plug is therefore the current, grounded and universal continental European standard:with grounding clips on both sides to match with Type F socketwith a socket contact to accept the ground pin of the Type E socket by the wayThe socket of the SCHUKO socket is set back by 15 mm so that there is no risk of electric shock if the plug is partially inserted. Both the SCHUKO system and the French counterpart are designed for a nominal voltage of 230 volts at 50 hertz. All components are designed for 16 amps as standard. At 230 volts, this corresponds to an output of 3,680 watts.What is a contour plug?In connection with SCHUKO plugs, we often hear the term contour plug. A contoured plug is a two-pole (i.e. unearthed) plug that has the necessary recesses for the German grounding clamps, the guide grooves and an additional hole for the French protective conductor contact on the rounded edge of the plug. The plug thus fits into both systems, but does not use the protective contacts.At eibabo® you will find not only classic SCHUKO connectors, but also 2KT SCHUKO connectors (for difficult conditions), duroplastic connectors, flat connectors, flat cable connectors and flat connectors. Rubber plugs and PVC SCHUKO plugs as well as assembly plugs, angled plugs and wall plugs are also available for the SCHUKO system. In addition to the protective contact plugs of the SCHUKO system, we also carry protective contact plugs of the Swiss system and the English plug system. Please noteSCHUKO plug connections are not always compatible with other safety plug systems. SCHUKO plugs from all approved and well-known manufacturers are offered here in the shop, including ABL Sursum, Berker, Bachmann, Merten, Mennekes, Gira, Busch-Jaeger and Apsa. Catalogue content:In this eibabo® catalogue Domestic switching devices > Plug with protective contact you will find items from the following product groups:Item overview:Angle connectorBelgium clutchBelgium plugConnectorConnectorsDevice connectorElamide connectorEuropean plugFrance clutchFrance plugFrench plugHousehold plugProtective contactRubber plugSafety plugSchuko plugSocketsSolid rubber plugfrom the following manufacturers:Manufacturer overview catalogue Earthed plug:ABLBachmannBalsBerkerBusch JaegerE+P ElektrikElsproGiraHartingHirschmannJungKleinhuisLegrand BticinoMennekesMertenMeyerSchulteWalther

Cable feed - In this eibabo® catalogue Domestic switching devices > Cable entry you will find items from the following product groups:Item overview:AdapterCable entryCable inletCable plug sealing clampCable sliderChannel introductionConduit inletConnectorCouplerCoupling pieceDiaphragmDuct entry nozzleDuct sliderExtended cable entryExtended pipe in-leadInsertMale connectorMuff sliderPipe in-leadPVC cable entrySlideSlide-in duct adapterSlider with 2 inletsSlider with strain relief and suspensionSliding nippleThreaded conduit entryTube pusherWith pull relief and suspensionfrom the following manufacturers:Manufacturer overview catalogue Cable feed:ABNBerkerBusch JaegerCorningElsoGiraHenselJacobJungLappLegrand BticinoMertenOBOPehaSiemensSpelsbergStiebel EltronTelegärtner

Junction piece - skirting duct - In this eibabo® catalogue Installation ducts for wall and ceiling > Transition piece for skirting duct you will find items from the following product groups:Item overview:Accessory for skirting channelAdapterChannel introductionConduit inletConnectionConnection for skirting channelHood moldingJunctionPipe entryPower supply systemSkirting boardSkirting channelSkirting systemSplitterTapTransition pieceTransition piece for skirting ductTransition piece for skirting trunkingfrom the following manufacturers:Manufacturer overview catalogue Junction piece - skirting duct:KleinhuisTehalit

Wall duct - When laying lines and cables, sooner or later you will definitely come to a point where you have to run your installation through a wall. Regardless of whether it is a drywall, a wooden wall, masonry or a concrete floor, with the wall ducts for cables from the eibabo technology store you can lay your installation safely through walls and floors. The annular space seals available from us, for example, are gas and watertight and are intended for sealing pipes, cables or lines in core drillings. However, there are also classic wall collars and penetration pipes for simpler applications. Protect your installation from chafing or crushing damage. Choose from our extensive range and have your wall duct for cables delivered quickly and reliably.Catalogue content:In this eibabo® catalogue Installation, isolation and connection material > Wall duct for cable you will find items from the following product groups:Item overview:Building penetrationConduitConduit sealExecutionGel castGel sleeveGrommetHeat Shrink FeedthroughHeat Shrink Wall PenetrationHeat-shrinkHeat-shrink wall ductHome introductionHouse connectionPress ring sealPressure castSealing insertShrink building entry sealShrink Wall PenetrationWall bushingWall collarWall duct for cableWall duct for cablesWall lead-throughWall penetrationWall transitWall transit for cableWall transit for cables and tubesWaterprooffrom the following manufacturers:Manufacturer overview catalogue Wall duct:3MCellpackFränkischeHauffKrüger-Werke

Cable gland - Would you like to protect cable entries in housings or devices from moisture, mechanical influences and dust? Then find out more about the possible uses of cable glands here. We will introduce you to the available materials and their properties and support you in your purchasing decision. In this catalog from the eibabo® shop you will find cable glands for all areas of application and from over 40 well-known manufacturers. Enjoy secure payment methods, fast shipping and worldwide delivery.What are cable glands?Cable glands fulfill different functions and are important components in cable management. This is a type of connector with which you can route cables and lines in housings or through bulkheads in a sealed and strain-relieved manner. Cable glands protect electrical lines in the terminal area of control cabinets, distribution boxes, plugs, control panels and other enclosures from:sparks and flamesmoisture, dust and other dirtvibrationkinking and twistingcorrosionflammable gases These components are used almost everywhere in indoor and outdoor electrical installations. Depending on the area of application, additional properties must ensure compatibility under difficult environmental conditions. These include electromagnetism and the risk of explosion. Factory-made cable bushings on housings and devices usually have a thread into which a cable gland can be screwed. If required, you will receive suitable adapters as a reduction or extension. This allows you to adapt existing threads with a different dimension accordingly.NoticeIn addition to sealing and strain relief, cable glands also prevent the cable from kinking and damage to the insulating jacket on sharp-edged holes in metal sheets and side walls.In the case of individually manufactured bushings (holes), you must fasten the cable gland with a counter nut.How is a cable gland constructed?A standard cable gland basically consists of a frame element / socket, cable lug clamp, seals, union nut, thread seal and lock nut. Seals provide the necessary protection against the ingress of moisture or solid particles. The union nut secures the cable with a cable lug clamp. The socket is clamped onto the device, the housing or the partition wall with the lock nut if this cannot be fastened with a thread. Please note that cable glands have to withstand very individual conditions. The structure of cable glands for special applications can be more complex or different.Where are cable glands used?In principle, cable glands can be found wherever electrical installations have to be carried out with particular care. This can even be the case for private installations. You will commonly find cable glands in industrial areas such as:mechanical engineering and plant constructionthe chemical industry and food productionin traffic engineering, in transport and in offshore installationsof automation and classic electrical engineering In all these areas, cable glands have to meet a wide variety of requirements. When making your selection, please pay attention to functional parameters such as protection class, impact resistance and compatibility with explosions and electromagnetic radiation.What are the properties of cable glands for hazardous areas?Explosion-proof cable glands are mechanical devices for securely sealing a cable in particularly hazardous areas. These are often used in industry and in automation systems. Explosion proof cable glands protect and secure all types of electrical, telecom, data transmission and control cables. The main functions are:Tight closing of the cable outer sheath and sealing of the cable entry into the electrical deviceProtection of live cable parts and inner insulation from dust and moistureEnsuring the continuity of the grounding circuit in case of sealing an armored cable (if the entrance has a metal structure)secure cable holder, which offers a required resistance to cable pullMaintaining the required level of explosion protection of the devices in which they are used Special sealing methods are used to ensure these properties. These are compression seals, displacement seals, membrane seals and complex insulating seals by casting insulating compound. Sometimes a double seal is used.Image: Jacob 50.640 PA/SW cable glandWhich material should I choose for a cable gland?Cable glands are available in different materials. These include some plastics and various metals. The material is a very important selection criterion to ensure a functioning application over the entire period of use. It should also match the cable material. This will prevent corrosion, excessive wear or damage. To make your choice easier, here is a brief overview of the materials:Brass - for organic compounds, water, mineral oils, lubricants and fuelsnickel-plated brass - for organic and saline solutionsStainless steel - for organic and oxidizing acids and bases as well as saline solutionsCorrosion Resistant Steel - For outdoor applications, seawaterPVDF (polyvinylidene fluoride) and PTFE (polytetrafluoroethylene) - for chemical compounds, high temperatures and mechanical stressPA (polyamide) - is the standard material for general applications without special specificationsNylon - for applications requiring high compressive strengthSilicone - when flexibility and tolerance to high temperatures are expected This list does not claim to be complete. All materials can be equipped with different sealing inserts according to the respective application conditions. These include: acrylonitrile butadiene rubber, silicone, elastomer, fluorocarbon rubber and polyethylene.What should I look out for when buying cable glands?Cable glands are safety elements in electrical systems. Cable gland manufacturers offer a wide range of products, varying in material, size, seal type, connection type, protection level and load capacity. A cable gland should be selected according to the following parameters:Type and size of the cable to be screwed (diameter, armored or unarmoured)Cable glands are divided into different clamping ranges. Each clamping area is suitable for cables of a certain diameter range. Pay attention to the required thread size or the hole diameter of the housing.Durability of the material under the respective conditions of useOperating temperature, impact resistance, electromagnetic radiation, risk of explosion and mechanical stress should be taken into account when making a purchase decision. Also consider the compatibility with chemical substances.cable routingIs the cable installed permanently or flexibly? Accordingly, select cable glands with or without tolerance to movement. TIP:Cable glands with kink protection and bending protection have flexible lamellas or spirals that support the cable a few centimeters. IP protection classThe first digit of the IP protection class indicates the compatibility with foreign bodies such as dust, dirt and physical contact. The second number describes the protection against water. Choose an IP protection class that meets your requirements. Catalogue content:In this eibabo® catalogue Cable and wire entry systems > Cable gland you will find items from the following product groups:Item overview:Angle connectorAnti-kink fittingCable entryCable gland setCone screw connectionConnectorCounter nutDistribution cabinetExplosion proofFull boltingGag nippleIntroductionJawsLimit switchMounting socketPipe socketPlastic nipplePlug-in sealPressurized water fittingRectangular plugRound plugScrew-in nippleSealing cable glandSnap cable glandStepped socketStrain reliefTrumpet fittingTwin screw connectionfrom the following manufacturers:Manufacturer overview catalogue Cable gland:ABBBarthelmeCeagCorningDEHNE+P ElektrikEatonGerichHagerHartingHauffHelukabelHenselHugroHummel ETIcotekJacobJolaKaiserKleinhuisLappLützeMetzMurrplastikOBOPflitschPhoenixPlicaRittalSchneider ElectricSchuchSiemensSpelsbergStahlTelegärtnerWaltherWeidmüller

Current monitoring device - If you would like to be in control of your electrical installation, then monitor your cables and wires for correct function and proper current flow. Especially if you want to minimize downtime or failures within production processes, you can counteract any problems early and effectively with a current monitoring relay. Learn more about the types and uses of power monitoring devices here. Use our help when making a purchase decision and choose from numerous quality products at top conditions here in your eibabo® shop.Analysis and EvidenceHigh-quality current monitoring devices are able to store errors that occur for later evaluation, to communicate with other components and, if necessary, to send out alarm signals.Devices of this type are typically installed in the control cabinet and use suitable relays to protect your system against undervoltage or overvoltage or against undercurrent or overcurrent.What types of surveillance devices are there?A monitoring device is a protective relay that is used to monitor various states of an electrical system. It is therefore an electrical switch which is triggered when certain specified parameters are exceeded. The device provides protection by shutting down the system in the event of an abnormal condition. A monitoring device (also called a control relay) typically consists of two main components: a sensing circuit for detecting condition and a trigger element. The detection element is used to determine the monitored parameters. The triggering element serves to trigger the switching process.Individual settings can often be made by the user with these devices. The protection parameters can thus be adapted to the requirements of the respective system. This is done using adjustment wheels and screws or, in the case of digital relays, using buttons and a display. Among other things, the following can be set:Delay ? to avoid false alarms due to sudden power surgesReset (manual or automatic) - used to reset the electrical system after a shiftRemote Reset - to remotely reset the electrical system after a shiftAlarm ? to trigger an alarm in the event of a trip Surveillance devices fall into different categories. These are based on the parameter being monitored. This can be voltage and current, but also filling levels or temperatures. The most common monitoring devices are:Voltage monitors - trip when the voltage in an electrical system exceeds and/or falls below a specified level.Phase monitors ? are used to monitor and protect against polarity reversal, phase failure and phase asymmetry. These constantly check the phase difference between two or more phases.Current monitors - protect equipment in an electrical system from overcurrent or undercurrent. Current monitoring relays trigger when the current exceeds or falls below a predetermined value.Frequency Monitors - Used primarily in Alternating Current (AC) systems where line frequency control is required. These relays are therefore used to protect against frequency anomalies.Temperature monitors ? primarily protect against overheating by constantly monitoring the temperature of the system and the devices that are being protected. Areas of application are predominantly industrial plants where extreme temperatures are a problem.Level monitors - are switches for level control in cisterns, tanks and other storage containers. These devices are used wherever liquid levels need to be monitored. Image: Pilz S1IM #828050 current monitoring relayThe different types of current monitorsCurrent monitors are important devices when it comes to protecting electrical systems. These help prevent damage to equipment and components by shutting off a circuit in the event of a fault. There are different types of electricity monitors. Each has its own advantages and areas of application. Depending on this, please select the right type to ensure proper protection.Primary and secondary power monitorsPrimary devices are mostly part of a circuit breaker and are mainly used in electrical networks with voltages up to 1000 volts. Secondary current monitors are connected to the circuit through a current transformer, which in turn is connected to the power supply. The current transformer reduces the current to a value suitable for the function of the monitoring device. Secondary current monitors are in turn divided into the following subspecies:Electromagnetic DevicesThe devices based on the principle of electromagnetism are the most common. These consist of a core with a copper winding and an armature with attached switch contacts. When the current is off, a spring keeps the armature away from the core. When a voltage is applied, a magnetic field builds up around the core. This attracts the armature and thus switches the connected contacts. The majority of electromagnetic devices are so-called polarized relays. These contain two cores with windings, a permanent magnet and a contact rod. Operation is dependent on the polarity of the input signal. There are electromagnetic relays for alternating and direct current. Their advantages lie in high-quality galvanic isolation, low price, low contact voltage drop and low heat development. No refrigeration is required. Devices of this type are resistant to impulse loads and interference from lightning strikes. The main disadvantages are the limited mechanical and electrical service life and the low operating speed.induction relayThe principle of operation of induction relays is based on the interaction between the current induced in a conductor and a variable magnetic flux. Therefore, with alternating current, these are used as indirect protection relays. The integrated components of the device are arranged in such a way that they are aligned with each other at the set frequency of the current and are not deflected. When the frequency changes, a moving element moves, causing the contacts to close or open. We distinguish between induction devices with a frame, with a pane and with glass.differential relaySuch devices compare the current strength before the consumer and after it. This consumer is usually a power transformer. In the normal state, both values are approximately the same. However, if a short circuit occurs, this balance is disturbed. As a result, the relay closes the contacts and turns off the faulty section of the circuit. Often found in household appliances and lamps, these relays protect people from electric shock.Relays on microcircuits in the integrated electronicsThe devices work with semiconductors such as triacs or thyristors. In the basic principle, such a device compares the incoming signal with the parameters stored in the device for trouble-free operation. If there is a deviation, the relay breaks the circuit.thermal relayThermal relays work with an integrated bimetal. This heats up when an electric current is passed through it. If the current flow deviates from the specified value, the bimetallic strip deforms, causing the contacts to open and close.What should you look for in a current monitoring device?In order for the current monitor to work, its parameters must meet the requirements of the assigned tasks. When selecting a device, pay attention to the following features:Voltage in volts - this is the voltage range in which the device normally operatesCurrent in amperes - each device is rated for a specific currentTripping power in watts - this is the minimum power of the electrical current supplied for normal operationControl power in watts - this is the maximum power of electric current at which the relay will perform its functions correctly TIPWhen making your selection, pay attention to the prevailing operating conditions. Is the device used in critical environments with high humidity, dirt, heat, cold or vibrations? Furthermore, the error detection depends on the accuracy of the measurement of the current strength in amperes. The response time of the device is another important parameter. How long does the device take from the moment of the event to triggering? Under certain circumstances, it can be advantageous to be able to individually set a delay before switching the device on or off for critical loads.As a specialist for smart home technology, we at the eibabo® online shop are your competent partner for all questions relating to intelligent electrical installation. You can get high-quality current monitoring devices from us from well-known manufacturers such as ABB, Dold, Eaton, Eltako, Hager, Pilz, Siemens and many others. Catalogue content:In this eibabo® catalogue Relays > Current monitoring relay you will find items from the following product groups:Item overview:Current measurementCurrent measuring relayDry run protectionFuse clampsLevel measurementLevel monitoringLevel relayLevel switchLoad monitoring relayLoad relayLoad shedding relayModular installation deviceOvercurrent monitorOvercurrent monitoringOvercurrent relayPower guardPower monitoringPower monitoring devicePower monitoring relayPower relayPower window relaySecurity moduleSelectivitySupplementary moduleTest functionThree-phase monitoring deviceTransfer blocksWindow current relayfrom the following manufacturers:Manufacturer overview catalogue Current monitoring device:ABBBenderDoldEatonEberleEltakoETAFinderHagerLützeMetzMurrelektronikPhoenixPilzSchalkSchneider ElectricSiemensWAGO

Electricity meters - Have you always wanted to know how much energy individual devices in your household consume? This catalog from the eibabo® shop offers you the right measuring instruments for this. Here you can get high-quality electricity meters and many other meters at top conditions. In our modern home we use numerous electrical devices. In addition to lamps, washing machines and refrigerators, media technology is a major energy consumer. Televisions, computers, chargers for smartphones and building automation are powered by electrical energy. Although some of these devices also help save electricity, it is interesting to know how much energy they actually use.What are electricity meters?Electricity meters are devices for displaying electricity consumption or energy consumption in electrical systems. AC induction meters are predominantly used in households, which directly display the consumed kilowatt hours. To find out how high your energy consumption is in a certain period of time, you need to take two measurements. Subtract the value of the second measurement from the value of the first measurement.Image: ABB B23 113-100 three-phase meter M-BusWhat types of electricity meters are there?There are two main types of electricity meters. These are used by the utility companies. On the one hand there are the electromechanical meters and on the other hand the so-called intelligent meters or smart meters. If you operate a solar system and feed electricity into the grid, you need a third type of meter, the bidirectional meter. These measure the current drawn and the current fed in. As a rule, you have little influence on the electricity meters that come from your energy supplier. These are installed where the power lines enter your building. This catalog is about electricity meters, which you can also install. This allows the consumption of a specific section of your installation or the consumption of an individual end device to be measured.How is an electromechanical meter constructed?Electromechanical induction meters are widely used and can be found in many homes. These contain an electrically conductive, non-magnetic, rotatable 'Ferraris disc'. The disk is driven by the interaction of magnetic fields generated by two electromagnets.Magnet 1 is powered by the current from the incoming power linesMagnet 2 is powered by the current demanded by the building's electrical circuits The rotation of the disk is slowed down by two permanent magnets, which exert a proportional opposing force. The aluminum disc drives a scrolling mechanism that displays kilowatt hours or fractions thereof.How does a smart meter work?Electronic electricity meters have been on the market for several years. The current standard for electronic electricity meters are digital electricity meters and so-called smart meters. These work in a similar way to electromechanical electricity meters. Instead of mechanical moving parts, they contain a battery and a communication chip. The chip sends meter readings wirelessly to a collection point. This happens several times a day depending on the time of day. The data is usually transmitted to the electricity supplier every quarter of an hour via power lines, mobile communications or high-frequency networks. Already knew?The chip is also known as an encoder or ERT device. This uses the same frequency as many cordless phones. However, the device is designed to avoid interference. The battery in the communication chip in digital electricity meters is designed for a service life of 15 to 20 years.What are the advantages of measuring with an electronic electricity meter?With an electronic electricity meter, you can not only determine how much energy you use, but also when. At first glance, this may be less important additional information. But knowing exactly when and how much electricity you are using can save you a lot of money. Electricity prices vary throughout the day. When demand is high, electricity costs more than when demand is low. Constantly rising energy costs are leading to deregulation of the electricity markets. In the future, utilities could offer electricity tariffs that bill for the electricity provided based on the time of use. This would be a significantly fairer billing method than the current variant, which is based on average costs.smart gridSmart grids are intelligent power networks that take generation, storage and consumption into account. This allows fluctuations in power in the network to be compensated. Networking and coordination is carried out using modern technologies and decentralized energy management systems.Smart meters can also be read remotely. Utility companies thus save operating costs and working time. Electronic electricity meters are therefore an essential part of the so-called smart grid. The devices help you to question your habits and save money if you use your electricity off-peak. Think of buying an electronic electricity meter as an investment in your future.How do I find the right electricity meter?Modern electricity meters can be used to display electricity consumption in real time. Especially in the KNX area, intelligent electricity meters offer many advantages. These support you with load management within your installation and with the monitoring of services and end devices. This saves you money and time because you can make adjustments according to your consumption profile. The use of data loggers or programmable logic controllers makes it easier to display, control, analyze and monitor the data. You can integrate models with a KNX interface directly into your building automation system using Engineering Tool Software (ETS). But which things are still important when buying?number of phasesWhen choosing an electricity meter, please consider how many phases are required. The most common models are single-phase or three-phase. If your current system that you are getting your data from is single phase, you will need a single phase electricity meter. If the electrical system is three-phase, use a three-phase electricity meter. As a rule, the devices can be mounted on a DIN rail. The measurement is carried out flexibly for various performance parameters such as:True RMS Voltage (Vrms)True RMS Current (Irms)Active power (kW)Active energy (kWh)Apparent Power (kVA)Apparent energy (kVAh)Reactive Power (kVAR)Reactive energy (kVARh)Power Factor (PF)frequency The devices can be used both on the primary side of the low voltage and on the secondary side of the medium voltage and high voltage.The ampPay attention to how many amps you need for the system. Commonly, smart electricity meters support 60 amps, 100 amps, and 200 amps. The right choice depends on your power system. Using a 100A electricity meter for a system that requires 200A would be impractical.Bus systems and networksIntelligent electricity meters communicate via various media and protocols. Please determine in advance which communication protocols will be used. Well-known fieldbus systems are AS-Interface, CAN, CANopen, M-Bus, EtherCAT and others. Catalogue content:In this eibabo® catalogue Meters > Kilowatt-hour meter you will find items from the following product groups:Item overview:Active consumption meterActive power meterAdditional roomBidirectional counterCable conversion converterCombination counterCombination meterConverter meterCurrent measuring adapterDIN railDIN rail counterDirect meterElectricity meterEnergy cost meterEnergy managementEnergy meterHeat pump systemsMeasuring accessoriesMeasuring technologyPower factorPower meter plugSingle phase meterSpare PartsTariff meterThree-phase meterTransducerTwo-tariff meterTwo-wire meterfrom the following manufacturers:Manufacturer overview catalogue Electricity meters:ABBABNBachmannBergEatonEltakoEMU-ELEKTRONIKFinderFroniusGMC-I MesstechnikHagerHamaJanitzaLingg & JankeNZRSchneider ElectricSiemensStiebel Eltron

Soft starters - Would you like to avoid suddenly occurring high starting currents when switching on an electric motor, reduce wear and tear on the motor and thus extend its service life? Find out here how a soft starter works and which criteria you can use to select such a device.What is a soft starter?Soft starters, soft starters or soft starters can basically be used in all electric motors. The devices are used in particular for asynchronous motors that are operated with alternating current. The starters work according to the fact that the torque developed by the electric motor is proportional to the square of the starting current and, correspondingly, proportional to the applied voltage. Thus, with a soft starter, by reducing the voltage at the moment the motor starts, you can adjust the torque and current. So, the task of these devices is to keep the motor parameters (current, voltage, torque and so on) within safe limits during the start. This is done to:to relieve the engine drive train when startingto limit the inrush currentto avoid a voltage drop in the mains voltageprevent the miniature circuit breaker in the circuit from responding too quicklyprevent engine overheatingEliminate dropouts and irregularities in the course of the mechanical driveextend engine life What is an asynchronous motor?To understand the importance of soft starters, we need to know something about the motors they are used in. Electric motors run on either direct current or alternating current. When it comes to AC motors, we mainly differentiate between asynchronous motors and synchronous motors. The difference between the two motor variants lies in the detailed design and the interaction between the rotor and stators in the magnetic field generated.Already knew?In a synchronous motor, the rotor speed is always equal to the rotational frequency of the electromagnetic field. In an asynchronous motor, there is a difference between the rotational speeds of the rotor and the rotating magnetic field in the stator.Asynchronous motors of small and medium power are the most commonly used electric motors and are used both in industry and in household appliances. In the industrial environment, three-phase asynchronous motors are used most frequently, for example as drives in construction, in traffic, in public utilities or as drives for water supply devices. The main problems of these engines are:the high starting current, which can be many times higher than the nominal current and thus leads to problems with the performance stabilitythe inevitable difference between engine torque and load torque. When switching on, the torque is often available in fractions of a second. This sudden force can lead to failure of the drive train. A soft starter avoids these problems by slowing the acceleration and deceleration of the motor. As a result, starting currents can be reduced and irregularities in the mechanical part of the drive as well as hydraulic shocks in lines and valves when starting and stopping the motors can be avoided.What is the starting current?The principle of operation of asynchronous motors is based on electromagnetic induction. The build-up of a back EMF from the application of a changing magnetic field during engine start-up causes transients in the electrical system. Definition transientTransients in electric motors are brief voltage peaks caused by switching on the electrical circuit. These transients can affect power supplies and other connected devices. When starting, the engine accelerates to full speed. Meanwhile, the starting current can reach many times the full load current. During this time, the cables must carry more current than when they are running. The voltage drop in the system is also much greater when starting up. This becomes especially clear when starting a powerful power unit or a large number of engines at once.This is why soft starters are increasingly being used when starting high-performance electric drives. The function of the starters is to supply voltage to the motor windings evenly from zero to nominal, which also allows the motor to accelerate smoothly to maximum speed. During the starting process, the soft starter gradually increases the applied voltage and the electric motor accelerates to the nominal speed without high torque peaks and current surges.How a soft starter worksYou have now learned about the main problems involved in starting induction motors. Soft starters counteract these problems and can be either mechanical or electrical or a combination of both. Mechanical soft starters directly counteract the sudden increase in engine speed by limiting the torque, for example, with brake pads, fluid couplings, magnetic locks or counterweights.The electrically constructed devices gradually increase the current or voltage from an initially low level to a maximum voltage. This starts the motor smoothly and gradually accelerates it to its rated speed. These starters usually work with an amplitude control and can therefore also start up when idling or under load. Devices of the newer generation use phase control methods and also start drives with heavy starting.Image: Siemens 3RW4037-1BB04 soft starterWhat types of soft starters are there?Soft starters are phase controlled. Thus, three types of soft starters are used: devices with one, two and with all controlled phases. The first variant is applied to single-phase motors to provide reliable protection against overload and overheating, as well as to reduce the effects of electromagnetic interference. The devices of the second type usually contain a bypass contactor in addition to the semiconductor control board. After the motor has reached rated speed, the bypass contactor is activated and supplies DC voltage to the motor. The three-phase type is the optimal and most technically advanced solution. It provides reliable current and magnetic field strength limitation without phase distortion.What should you consider when buying a soft starter?The main feature of a soft starter is the current rating. This value should be 'many times' greater than the value of the current flowing through the motor winding. How high this 'multiple' is depends on the severity of the launch. When it comes to motors for fans or pumps, the starting current is about three times higher than the rated current. Certain saws or press machines are often devices with heavy starting. These are drives with a large moment of inertia. Their starting current is about five times higher than the rated current. For motors with particularly difficult starting, the starting current can be eight to ten times higher.Please noteA soft start takes time and excess energy is converted into heat. To repeat the starting process, the starters must cool down. Therefore, if your process requires frequent switching on and off, choose a soft starter for heavy or extra heavy starting (even if your machine doesn't actually need it).Decide on a device that controls the required number of phases. In addition, a soft starter works according to a preset program. In other words: The device increases the voltage to the nominal value within a certain time. An integrated control unit with feedback function allows you to control this process and compare voltage and torque or the differences between rotor and stator.If necessary, pay attention to the ability of the starter to work when accelerating or braking. This would require an additional, integrated auxiliary contactor that bridges the main circuit so that it can cool down. This prevents phase asymmetry and overheating of the motor windings. With some models, you can set certain parameters manually using a rotary potentiometer on the device or digitally using a microcontroller. Consider whether you need additional functionality or features. These include:a certain type of protectionthe presence of power saving modesrestart capabilityWorking at reduced speed TIPA properly selected soft starter can double the service life of electric motors and save up to 30 percent electricity. With a soft starter from the eibabo® online shop, you are opting for high-quality goods from well-known manufacturers such as Eaton, Schneider, ABB or Siemens. If you want to control the speed of a machine not only at the beginning, but permanently, then the use of a frequency converter would be an alternative for you. Frequency converters are also available here in the online shop at top conditions. Catalogue content:In this eibabo® catalogue Low-voltage industrial components > Soft starter you will find items from the following product groups:Item overview:Direct soft starterDirect starterDrive technologyEngine starterPerformance starterSoft startSoft starterStarting deviceTorque controlfrom the following manufacturers:Manufacturer overview catalogue Soft starters:ABBDoldEatonFrankoniaKalejaRockwellSchneider ElectricSiemens