Search results for Fine%20protection

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Surge protector - measur./control - Modern sensors, measuring devices and probes monitor and control complex and interdependent processes. Protect these operations from power surge failures. We will introduce you to different MSR surge arresters and support you in your purchase decision. Automated processes intervene deeply in a building management system or in production processes. As a result, a very high degree of availability of the determined and transmitted measurement data and control signals is required. Surge protection devices make a significant contribution to safeguarding the function of this technology in the event of voltage peaks of all kinds. Depending on the risk potential and the level of protection required, select the surge protection devices that are right for you and combine them with other protective circuits if necessary. Image: Dehn DPA-M-CLE-RJ45B-48 surge arrester What are MSR surge arresters? MSR stands for measurement technology, control technology and regulation technology. MSR technology is used in particular within modern bus systems and telecommunications systems. Private and industrial areas of application are: air conditioning and refrigeration systems heating systems and ventilation systems the field of water technology and waste water technology the electronics sector and smart home The MSR overvoltage protection devices are used in electrical engineering to limit and divert overvoltages in electrical lines. Particularly sensitive measuring devices and control devices can be damaged by overvoltages, incorrect measurement data can be determined and incorrect control signals can be sent. But how does the overvoltage come about? Lightning strikes, short circuits, electrostatic discharges or switching operations by the network operator generate mains voltages which are well above the normal value of 230V in Germany. The consequences of such an event depend on the level and duration of the overvoltage and the speed of the voltage pulse. The MSR surge arresters (Surge Protective Devices SPD) are usually installed directly in front of the signal inputs of the measuring devices and control devices to be protected. In the context of a three-stage overvoltage protection, these represent the so-called fine protection (type 3). What is measurement technology, control technology and regulation technology? MSR technology records a wide variety of situations and states within automated processes. Depending on the type and area of application, individual parameters are determined using different measurement methods. Typical measured variables are temperature, pressure, speed, humidity or chemical composition. These measured variables are converted into electrical signals such as current, voltage or resistance and serve as the basis for triggering logical actions. How is an MSR surge protection constructed? A general overvoltage protection is usually structured in three stages and is part of the internal lightning protection of a building. There are different requirement classes for overvoltage protection devices. We distinguish between type 1 (rough protection), type 2 (medium protection) or type 3 (fine protection). When selecting suitable protective devices, the type of possible fault and the type of device to be protected are considered. This results in a combination of different surge arresters adapted to the respective needs, which together ensure coarse, medium and fine protection. Type 1 coarse protection devices are used to divert high lightning currents. These reduce the residual voltage of an overvoltage to a level between 6000 volts and 1300 volts. Type 1 devices are usually switched before the house installation. This means that the high lightning current cannot even reach the house distribution system. Type 2 devices provide medium protection. They reduce the residual lightning voltage to values between 2000 volts and 600 volts. They are installed, for example, in the sub-distributors of individual apartments or parts of buildings. Medium protection devices also limit dangerous transient overvoltages. These are caused by the switching of transformers, circuit breakers, motors or inductive loads. Already knew? Surge arresters are not disposable fuses. The devices can ensure reliable protection over a long period of time and do not need to be replaced after they have been triggered. The Type 3 overvoltage protection further reduces the remaining overvoltage. These devices provide fine protection and protect against voltages up to a level of 1000 volts AC or 1500 volts DC. The MSR surge arresters available in this eibabo® catalog belong to this category. Are MSR Surge Arresters Really Necessary? Whether special protective measures against overvoltage are required for your MSR devices must be considered individually for each installation. Estimate the risk objectively, taking into account the probability of overvoltages and overcurrents. Base this assessment on all existing parts of your protective measures against overvoltages. Include the risk of electromagnetic phenomena such as lightning discharges or earth potential rises in your considerations. Ultimately, you should achieve reliable protection for your entire system. Please consider the organizational and financial consequences that the failure of important measurement and control devices would have for your operational processes. When should I choose an MSR surge arrester? Power connections and data lines are an integral part of our everyday lives. Stable signal transmissions are essential for smooth business operations, and not just in industrial or commercial environments. Our high-tech lifestyle also demands reliable connectivity. If you recognize yourself in any of the following questions and answers, then MSR surge arresters are for you. Do you value security? Security devices such as alarm systems, door intercom systems, access controls and emergency call devices only offer complete protection if the power supply, the monitoring sensors and the data lines work permanently. MSR surge arresters protect those systems that ensure your protection. You don't want to do without the amenities of modern living comfort? A lot of planning, work and money goes into modern smart home installations. The automatic control of temperatures, shutters or multimedia applications enable a comfortable living environment. With MSR surge arresters, this convenience is maintained even in the event of an overvoltage. TIP:Investing in reliable surge protection is usually less expensive than replacing, repairing, and installing new equipment. Would you like to secure your independence? The production of your own electricity is becoming more important every year. Modern and environmentally friendly mobility solutions and heating systems rely on electricity from your own photovoltaic system. The efficient use and storage of electricity requires complex control devices. With an MSR surge arrester, you can protect this expensive technology from surge damage. You retain your independence from energy suppliers. Do you want to protect investments and preserve property? Real estate is an investment and provision in one. The technical equipment of a building has a significant influence on its value. By using MSR surge arresters, you not only get the building services, but also your old-age provision. In our catalog you will always find the right surge arrester tailored to your requirements for your individual device variants. You get the best quality at low prices. Well-known manufacturers are ABB, Dehn, Hager, Phoenix, OBO, Kathrein, Weidmüller and many others. Catalogue content: In this eibabo® catalogue Earthing, lightning and surge protection > Surge protection device for data networks/MCR-technology you will find items from the following product groups: Item overview: Building technology Built-in protection device Combined protection Data line protection Data networks Device protection DIN rail DIN rail lightning rod Field device technology Gas discharge capsule Information technology Lightning arrester Lightning protection Mains protection Mains surge protection Overcurrent protection Overload Overvoltage protection Phone protection Standard signal protection Surge fine protection module Surge protection device Surge protection module Surge protection plug Telecom Surge Protection Telecommunication socket Telecommunications strip conductor Varistor arrester from the following manufacturers: Manufacturer overview catalogue Surge protector - measur./control: ABB Astro Strobel Auerswald CobiNet DEHN Hager Hirschmann Kathrein Mobotix OBO Phoenix Schneider Electric Siemens Telegärtner Televes Weidmüller Wisi

Overvoltage protection - Lightning strikes pose a real danger to electrical appliances at home. Washing machines, dryers, ovens, televisions and computers, but also aquariums and heating systems are electrically operated household appliances that are sensitive to overvoltage. It would be very annoying if they were damaged by a lightning strike. You should therefore protect your home electronics from the dangers of overvoltage. To protect your installation, the eibabo technology store offers you a large number of components for individual overvoltage protection. In addition to all components for an external lightning current arrester, you can also get surge arresters of the type 2 protective device, the so-called medium protection for your system, as well as special devices of the type 3 protective device, which represent the fine protection for your sockets and plug connections. We recommend that you carefully plan your electrical installation and surge protection, discuss the details with a specialist and have them installed by an experienced electrician.Catalogue content:In this eibabo® catalogue Earthing, lightning and surge protection > Surge protection device for terminal equipment you will find items from the following product groups:Item overview:AdapterAdapter for socketCenter protectionClass III arresterD arresterData line protectionDevice protectionDevice surge protectionDevice surge protection for power engineering/power supplyEndpoint protectionEnergy TechnologyFine protectionMains fine protectionModuleOver voltage protectionPhone protectionPower supplyProtectionProtective adapterSignal protectionSurge adapterSurge fine protection moduleSurge protection deviceSurge protection device for terminal equipmentSurge protection module for socketSurge protection socketType 2 arresterType 3 arresterfrom the following manufacturers:Manufacturer overview catalogue Overvoltage protection:BachmannBusch JaegerDEHNE+P ElektrikElsoFinderHagerHoubenMertenMurrelektronikOBOPhoenixRittalTehalit

Combined arrester - meas./control - What is the purpose of a combination arrester for MSR technology? It is difficult to predict when and where lightning will strike, and overvoltages always pose a risk to electrical installations. It is therefore advisable to always protect all electrical systems from damage caused by external influences. MSR technology stands for modern measurement, control and regulation technology. It is used in particular in the areas of refrigeration, heating and air conditioning systems. But MSR technology also controls complicated, interdependent and interdependent processes in the water, waste water and electronics sectors. With a combi arrester from the eibabo online shop, you protect your sensitive MSR technology as well as your telecommunications and bus systems from damage caused by lightning and overvoltage. For example, we offer you reliable discharge technology from Dehn at attractive prices.Catalogue content:In this eibabo® catalogue Earthing, lightning and surge protection > Combined arrester for data networks/MCR-technology you will find items from the following product groups:Item overview:BC combinationBuilding technologyC arresterCellular protectionCenter protectionClass C arresterCoarse, fine protectionCombined arresterCombined arrester for data networks/MCR-technologyCombined arrester for information and measurement and control technologyCombined arrester with Ex versionData line protectionDevice protectionDIN rail arresterDIN rail lightning rodFine protectionInformation technologyLightning protection moduleMedium, fine protectionMobile protection plugMSR protectionOver voltage protectionOvervoltage protectionPhone protectionProtective plugRough protectionSurge protection moduleWestern protection modulefrom the following manufacturers:Manufacturer overview catalogue Combined arrester - meas./control:DEHNOBOSchneider ElectricSiemensTelevesTriax

Fan housing bathroom-kitchen - Strongly fluctuating humidity and room temperature as well as a wide variety of smells are unavoidable in the bathroom and kitchen. Perfect ventilation of the rooms is all the more important. Because everyone wants to feel comfortable in the rooms of their living area and find them well-kept. In addition to the extremely diverse range of high-quality fans and ventilation systems from eibabo, you will find a fine selection of optimal fan housings for kitchens and bathrooms in this catalogue. In some versions that you will find in our offer, special attention was paid to the topic of fire protection. Maintenance-free fire protection shut-off devices were designed to prevent the spread of fire. Cleaning the housing is time-saving and uncomplicated thanks to the easily removable flaps. Due to the low overall depth, you can integrate your ventilation systems unobtrusively in the bathroom and kitchen.Catalogue content:In this eibabo® catalogue Gate operators, pumps and ventilators > Ventilator enclosure for in-house bathrooms and kitchens you will find items from the following product groups:Item overview:Air distribution systemCeiling fanExhaust fanFan housing for indoor bathrooms and kitchensFire protectionFlush-mounted housingInternalMaico fanOne-pipe ventilationSealing ringsSingle room ventilationSuction unitSurface-mounted housingVentilation systemVentilation systemsVentilator enclosure for in-house bathrooms and kitchensWall fanWindowlessfrom the following manufacturers:Manufacturer overview catalogue Fan housing bathroom-kitchen:HeliosLunosMaicoVaillant

Pressure switch - Would you like to control switching processes in a technical system that are triggered by changes in the pressure of a gaseous or liquid medium? Then you need a pressure switch. Here you can learn a little more about the history, the tasks and the operating principle of pressure switches. Inexpensive and reliable pressure switches for switching valves or pumps are available here in the eibabo® online shop. Choose a model that suits your system from our range.What are pressure switches?Pressure switches are used to automate a pump or compressor. The basic principle of these switching devices is that connected devices:switched on when the pressure falls below a set limitoff when the upper pressure limit is reached Image: Eaton MCSN11-V pressure switchPressure switches have many names. The following terms are very common:Differential pressure switch, pressure limiter, pressure controller, pump relay, water pressure switch, air pressure switch or compressor switchThe devices are used, for example, in liquid tanks or gas tanks in which the filling level or the internal pressure of the medium contained therein is to be monitored. This ensures that certain values are not exceeded or fallen below. Alternatively, when a critical value is reached, switching processes are triggered in order to restore the desired or programmed normal state. A distinction is made between mechanical and electronic pressure switches, which offer individual advantages depending on the desired area of application.The history of the pressure switchIn the past, pumps and compressors were switched on and off mechanically and required constant human intervention. In the early 1930s, August Frede Maschinenfabrik (today: Condor-Werke) developed a simple and functional device that was equipped with a membrane and worked according to a spring principle. This first pressure switch should automate the switching on and off of pumps or compressors. In 1935, the company received the world's first patent for a diaphragm pressure controller for the automatic control of pumps. To this day, Condor-Werke is one of the global market leaders in the development and production of pressure switches.What are the advantages of a pressure switch?A pressure switch allows full automation of the start-up and shut-down process, eliminating the need for human involvement in managing the pump or compressor. An automatic shutdown when the upper pressure limit is reached guarantees the safety of the respective system. If pumps or compressors only work within a certain pressure range due to intelligent switching processes, energy costs can be significantly reduced and resources saved. TIPBe sure to note the installation location and, accordingly, the moisture protection of the pressure switch. In addition, pressure switches are very reliable and durable.The mechanical pressure switchDepending on the design, pressure switches can work mechanically or electronically. Mechanical type devices are more common due to their reliability, durability and simplicity. The mechanical pressure switch can be installed directly on site with minimal effort.NoticeHigh-quality pushbutton switches have non-stick silver-plated contacts, a high-strength diaphragm and fine-tuning capabilities. Especially with cheap goods from the Far East, the lack of these properties can lead to failures and unreliable switching operations. Here in the eibabo® online shop you only get reliable quality goods from well-known brands.The functional principle of a mechanical pressure switch is essentially based on the combination of a membrane with a block of adjustable springs. The pressure of the working medium is transmitted through the diaphragm to the working pressure setting springs by means of nuts or screws. A differential pressure setting spring measures the value of this compression. If the compression of the working pressure setting springs exceeds a certain value due to the pressure of the diaphragm, the differential pressure setting spring opens the contacts in the contact block and the pump or compressor is switched off. When the pressure drops, the tension in the springs relaxes again and the compression decreases. The mains contacts then close again and the connected device is switched on again. Depending on the version of the pressure switch, there may be additional outlets for connecting a pressure gauge and safety valves.The electronic pressure switchAn electronic pressure switch is actually a complete pump controller. As a rule, these devices include elements for soft starting, protection against dry running, as well as ways of setting the upper and lower thresholds of the operating mode of the pump or compressor. The advantages compared to a mechanical pressure switch are the smaller dimensions and the setting principle. Sensitivity adjustment screws are located on the electronic pressure switch body.How do I protect myself from my system running dry?The cause of failures in the operation of pumps or compressors is often the lack of the required working medium in the system. This problem is annoying and affects the reliability of all components. Idling leads to overheating or damage to parts and the associated failure of the entire system. To avoid this, when choosing a pressure switch, please consider the characteristics and allowable ratings for the operation of your pump or compressor. You avoid the danger of idling as follows:Buy a device with dry-running protection. These devices are a bit more expensive, but respond very effectively to pressure drops.Invest in the installation of a controller that not only monitors the pressure. This would, for example, also switch on the pump if the actual values fall below the set target values. How do I choose a pressure switch?When choosing a pressure switch, it is necessary to determine the type of pressure switch, the required functionality and the operating pressure:Should the switch monitor the pressure of liquids or gases?Does the switch have to be able to withstand chemical compounds?In which key figures is the working pressure range?How is the power supply designed for the switch (voltage, number of phases, current)?What sizes are required for the flange connections?What additional components and options are desired? Examples of this would be: start button, thermal relay to protect the electric motor, dry running protection relay for pumps, relief valve to make starting compressors easier and so on. When installing a high-quality pump, please remember that the pressure switch should also be of the same quality. This is the only way to ensure reliable operation. by the wayThe manufacturers of high-quality devices carry out long-term tests with the pressure switches in the laboratory in order to guarantee more than half a million switching operations. Use our detailed search to select your pressure switch. There you can precisely set the parameters of the switch you want and filter accordingly. Catalogue content:In this eibabo® catalogue Low-voltage industrial components > Pressure switch you will find items from the following product groups:Item overview:Compressor switchCylinder switchDifferential pressure switchPressostatPressure limiterPressure monitoring devicePressure regulatorPressure sensorPressure sensorsPressure switchPressure transducerPressure transmitterTwo-position controllerVacuum monitorVacuum switchfrom the following manufacturers:Manufacturer overview catalogue Pressure switch:Alre-itBaumerBourdon-HaenniCondorDoepkeEatonElsterEndress + HauserHeliosHoneywell FemaIfm ElectronicIpf ElectronicJumoMaicoNE-MARockwellSchneider ElectricSickSMC Deutschland

Insert communication cover - Which connectors do I need for my data cables? Are there special junction boxes for loudspeakers? Do I receive media inserts and covers to match my switch range? Data sockets, central plates, blind covers and other connection sockets for multimedia applications are available at particularly low prices in this eibabo® catalogue. It's the inconspicuous things that define our lives more than we think. Without them, our house or apartment would not be complete. This includes inserts and covers for telecommunications and media technology connections. Shopping, chatting with friends, online banking, a movie night, working or reading the news - everything is closely related to today's communication technology. Did you know?In Europe, people use the internet for an average of 4.5 hours a day. In Asia it is more than 3 hours and in the US people spend an average of 6 hours on the internet every day. This is not surprising considering the many possibilities offered by the World Wide Web. Which connections make all these things possible? We give you a brief overview.Which connections do the inserts and covers offered here offer?In this catalog you will find inserts and covers for the following connections: RJ45 CAT, KOAX, UAE/IAE, TAE, SAT, HDMI, USB, XLR, Cinch as well as for speaker cables and others. The range also includes dummy covers, cable outlets, cable ducts and cover plates for built-in loudspeakers. Many manufacturers make inserts and covers in a standardized size. This enables you to choose, combine or vary an individual frame. Refer to the product description to find out whether the inside dimensions of the cover frame you have chosen fit the insert or the cover. This allows you to customize the media connections in your living space.What do you need an RJ45 CAT connection for?The RJ45 CAT connector is a connector for Ethernet cables typically used for computer networking. The cables are available in STP (Shielded Twisted Pair) and UTP (Unshielded Twisted Pair) versions. STP cables have a shield around each core. This protects against electromagnetic interference. STP cables are commonly used in offices with many computers or in industry. UTP cables have no shielding. These are cheaper and are mainly used in private households. The RJ45 CAT connector is suitable for networks in which large amounts of data are transmitted, for example when streaming video or downloading large files. The RJ45 CAT connector is compatible with the newer 802.11ac and 10GBASE-T standards. Choose such a deployment and appropriate coverage for your network if you have already migrated to these standards or will migrate in the future.The RJ45 CAT connector can be used for the following purposes:Functioning of Ethernet networks with high data rates over long distancesConnection of computers, switches, hubs, DSL modems, routers and other network devicesSupport for Voice over IP (VoIP), Internet Protocol Television (IPTV) and other bandwidth intensive applications Image: Gira 569703 Modular Jack RJ45 Cat6A insertWhat is the difference between IAE, UAE and TAE connections?Whether IAE, UAE or TAE - connections are an elementary part of the functionality of devices that accompany us every day. Everyone knows them, but very few know what lies behind them. IAE stands for 'Integrated Services Digital Network Access' and is a digital connection for telephony and Internet access. UAE stands for 'Universal ADSL Access' and is a special type of ADSL connection that enables high-speed Internet via the conventional telephone network. TAE stands for 'telecommunications system connection' and is an analogue telephone connection, which is still widespread in Germany.Interesting in a nutshellWhat is HDMI?HDMI (High-Definition Multimedia Interface) is one of the most common interfaces for the digital transmission of audio and video data. The HDMI insert is a special type of connection that makes it possible to use HDMI cables and thus transmit audio and video data. HDMI inserts and the matching covers are available for installation in a switch box. Why do I need a blind cover?A blank cover is a cover for a port that is not used. This allows you to prevent dust or debris from getting into the port and contaminating the can. What is a cable outlet?Within a building it can happen that power lines or data lines are required at a certain point. A socket outlet or a data cable connection on the wall is not always desirable. Instead, the line or cable is routed cleanly out of the wall using a cable outlet and can be routed further within the room. What is a cord derivation?A cord derivation or cable outlet box is used to connect an external mostly flexible cable to the flush-mounted installation. In the private sector, for example, for leading out concealed multimedia cables or in the hotel industry for connecting the TV directly to the power supply as protection against theft. Are there combined telecommunications operations and media operations?Most inserts offer one or more connection points of the same type. There are a few inserts that combine different connections, for example RJ45 CAT and SAT. Mark connectionsIf there are numerous workplaces within a room and you need a large number of connections, we recommend covers with a labeling field. With small notes on the type, purpose or affiliation, you always have an overview of your installation.The eibabo® range includes a wide variety of variants and technical designs. These include models in various shades such as aluminum grey, polar white and anthracite or with glossy and matt surfaces. All inserts and covers are available in the current standards and regulations. Depending on the installation location and the desired type of assembly, you can benefit from our large range. Optimally design the connection between your living room or work area and the digital and multimedia world. Catalogue content:In this eibabo® catalogue Domestic switching devices > Insert/cover for communication technology you will find items from the following product groups:Item overview:Antenna socketAssembly setBase unitBlank panelBlanking plugBreakout cableCable outletsCentral platesCommunication technologyCord outlet boxData communicationData connection moduleDust coverLabel fieldLotus whiteMiniature connector insertMounting adapterMounting plateNickel metallicOutlet platePlug-in hoodSolder connectionSpeaker boxSpeaker socketStrain reliefUniversal useVolume controlZone controlfrom the following manufacturers:Manufacturer overview catalogue Insert communication cover:ABLBachmannBerkerBusch JaegerCommScope EMEACommScope/AMP NetconnE+P ElektrikEatonEFB-ElektronikElsoEltakoGiraHagerHartingHomewayJungKathreinKleinhuisKreilingLegrand BticinoLeoni DatacomMaicoMertenMetzMurrelektronikOBOPanduitPehaReichle & De-MassariRutenbeckSetecSiemensStiebel EltronTechniSatTehalitTelegärtnerTriaxWeidmüller

Switching relays - How does a relay work? What different relays are there? Where are relays typically used? Which relay is right for your project? Learn more about switching and controlling circuits here. Switching relays are used in many different applications, for example in automated factories, in vehicles and in household appliances. The switching relays offered by eibabo® are high quality, inexpensive, versatile, reliable and universally applicable. The best-known manufacturers in our range are Wago, Schneider Electric, Bircher, Finder, Grothe, Hima, Issendorf, Metz Connect, Phoenix Contact, Siemens, Tele Hase and Omron.What are switching relays?A switching relay is an electromechanical device used to control electrical circuits. It consists of one or more electrical contacts that are controlled by one or more magnetic coils. When the solenoid is activated, the contacts close and current flows. When the solenoid is de-energized, the contacts open and current does not flow.Image: WAGO 788-312 socket with relayWhat should be considered when buying a switching relay?In view of the enormously large selection and the numerous specifications, choosing the right switching relay is not easy. Before you decide on a specific model, you should plan your switching device exactly and define the exact task of the relay. This results in the type of switching relay required. Now select a suitable relay for your project based on the following considerations:Is the installation fixed or moveable? Switching relays for mobile equipment should be able to withstand vibration and shock.What kind of contacts should the relay have? How many? What is the switching current and the switching voltage?Which current magnitudes and voltage magnitudes occur? Consider the nominal voltage of the coil, the coil current, the dropout voltage and pick-up voltage of the coil and resistances.Which response times and release times should not be exceeded?What is the expected switching frequency?What requirements do I place on the service life of the mechanical components?In which environment and in which temperature range is the relay used? How does a switching relay work?Depending on the design, relays can have a simple or complex structure. However, the basic functional principle is the same. The heart of a relay is the coil with an iron core. When current flows through the coil, an electric magnetic field builds up. A ferromagnetic armature responds and is attracted. This movement connects two contact springs together. The so-called working contacts in the relay close (normally open).Good to knowSwitching relays have electrical ratings for the coil and internal switch contacts. The coil voltage is the voltage required for the coil to operate properly. The circuit voltage rating represents the maximum rating of the switch contacts and should not be exceeded.In some designs, so-called break contacts are opened when the magnetic field is created. These are called openers. There are combinations of openers and closers, so-called changeover contacts or changeover contacts. As soon as the coil no longer generates a magnetic field, the armature is returned to its initial position by spring force. The working contacts are no longer closed.In addition, there are numerous other relay types, some for special purposes. As a rule, these relays differ in the functional principle, in structure and size, in the switching capacity and in the contacts. A few examples briefly explained:For example, thermal relays use a bimetallic strip that bends when heated, opening or closing the contacts. Thermal relays are commonly used in circuit breakers.Photoelectric relays respond to light pulses and open or close the contacts accordingly. These are used, for example, in photo flash devices and surveillance systems.In static relays there are no moving contacts. The switching action is triggered by thermionic valves, transistors or amplifiers. This list could be continued, for example with time delay relays, solid state relays, coupling relays, distance relays, differential relays, undervoltage relays or overvoltage relays. There are separate categories for many of these special shapes here in the eibabo® shop. Please use our intelligent search.What are switching relays used for?Relays allow a low current circuit to control or switch one or more higher current circuits. Switching relays in a variety of designs are required in electrical distribution and electrical installation. The switching relays from our shop can be used for all interface applications in demanding control systems. This allows you to connect highly sensitive and almost powerless controls of a PLC, a control system or a process computer with the power level of a machine or another connected consumer.What are the advantages and disadvantages of switching relays compared to other switching mechanisms?Switching relays offer the following advantages:Switching relays are inexpensive.The components are robust and tolerate voltage peaks and current peaks.Switching relays provide potential-free isolation from the load circuit.The heat development is low. Cooling is not necessary.Switching relays switch both very low signals and high-frequency power.In many cases, the current switching status can be seen with the naked eye.Thinner gauge wire can be used to connect the control switch to the relay.Relays make it possible to direct current to a device via the shortest path. This reduces voltage losses. TIP:Semiconductors, semiconductor circuits or transistors are used as an alternative to relays. These offer an extremely fast response time. However, switching relays also have disadvantages:The mechanical components are subject to a certain amount of wear.Switching relays react sensitively to shocks and mechanical loads.The switching actions are audible.The response times and fall times are very long compared to semiconductors.The insulating capacity often depends on the environmental conditions. Why are protective devices used on some switching relays?If a relay is switched off and the coil suddenly loses current, a large voltage spike can occur. For this reason, protective mechanisms such as resistors or diodes are switched across the coil of the relay. These reduce or prevent the risk of these voltage peaks flowing back into the control circuit and damaging sensitive components. Resistors last longer, diodes provide more efficient protection against voltage spikes. You can judge what kind of protection is required based on the sensitivity of your components in the connected circuit.Why doesn't my switching relay switch off anymore?When choosing the right relay, you should pay attention to the loads that occur. Current peaks when switching can cause the contacts to 'stick' or 'weld' together. If the relay is not designed for the loads that occur, the surfaces of the contact springs will change over time. This can result in the contacts no longer opening when the relay is de-energized. Conversely, loads that are too low can also lead to a similar effect, since the self-cleaning process no longer takes place. Catalogue content:In this eibabo® catalogue Relays > Switching relay you will find items from the following product groups:Item overview:AC contactorBracket mountBuilt-in relayChangeover relayCloserComplete relayCoupling moduleDC voltage relayInrush voltageInstallation relayManual control levelMiniature relayMounting clipPlug-in relayPower relayRailway relayRelay couplerRelay interface moduleRelay socketRelay switchRelay terminalRemote switching relaySingle relaySwitch moduleToggle relayTransfer blocksUniversal relayWindow drivesfrom the following manufacturers:Manufacturer overview catalogue Switching relays:ABBAlbrightBircherComatDoldFinderGlen DimplexGrotheHimaIndexaLegrand SEKOLützeMetzMurrelektronikOmronPhoenixRockwellSchalkSchneider ElectricSHCSiemensTeleTTIWAGOWeidmüllerWieland

Electrical material - Electrical technology and electrical material surround us in virtually all areas of our lives and it is unimaginable to do without them in our daily routines. Especially because the subject areas are so diverse, ranging from entertainment equipment in the living room, right down to electrical distribution boxes in manufacturing companies, we now view the use of electrical material as something natural, without really stopping to think about it. Electrical technology and electrical material are in fact so complex, however, that even a simple categorization is often difficult. Yet this does not diminish the importance of the topic, which is evident by the fact, among others, that already in the early stages of various projects, the use of electrical technology is generally planned down to the finest detail. If we simply take the example of a new home-building project, even prior to the ground-breaking ceremony, it is already necessary to specify the exact type and manner in which electrical material is to be used. In the phase of basic installation, there are frequently very practical questions: What type of cables and wires (e.g. sheathed cables, underground cables, coaxial cables) and tubes (e.g. FBY cable conduit) should be installed and how long should they be? What type of sealing material should be used, and what kind of in-wall casing is appropriate? The brand manufacturer Kaiser, for example, offers very attractive options with its ThermoX, HaloX and FlamoX basic installation solutions. Moreover, the question arises where the sockets and connections are located in the new structure. The eibabo® online shop offers you the right items for electrical installation, and because only the highest standards are good enough for our customers, we exclusively carry top products of the most well-known premium manufacturers such as ABB, Cimco, Dehn, Eaton, Finder, Hager, Hensel, Kaiser, OBO, Phoenix, Rittal, Siemens, Spelsberg, WAGO and many more. In the implementation of projects, the basic installation is often seamlessly followed by decisions on the use of plug-in systems and plug connectors. These are mainly found in home connections, sockets and other cable connections, and are installed to provide electricity for users. The eibabo® shop encompasses a broad spectrum of topics, including more than 25,000 items in the area of electrical technology alone, helping you to find high-quality material for your individual needs. Another typical use for electrical material are electrical installations, which can no longer be viewed as a matter of secondary importance, particularly with regard to increasingly frequent networking. In addition to known elements such as residual current circuit breakers, electrical meters and control cabinets, products involving lightning surge protection are becoming more and more important. Modern, intricate devices typically are very sensitive to voltage fluctuations, which often makes them very prone to damage and function errors. This is where surge protection devices from name-brand manufacturers such as Dehn, Eaton, Hager, Phoenix, along with additional electrical material from the eibabo® shop can provide the proper remedy.

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