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Mersen - The eibabo® technology store is your specialist for smart home, lighting, switch programs and electrical material. And wherever electricity is used, measures must be taken to ensure the safety of the installations. These include, in particular, high-quality and reliable fuse links. The eibabo® shops from eibmarkt® stock numerous fuse links from the Mersen brand. In addition, there are many other products from this manufacturer such as switch disconnectors, fuse bases, screw caps, locking caps and isolating knives. Mersen is an international company with French roots, active in the fields of electrical energy and high-performance materials. It is present in more than 30 countries with over 50 production sites. It has 15 research and development centers. The Mersen Group operated under the name Carbone Lorraine until 2010. The origins of this company go back to the Lorraine coal company for electricity, founded in France in 1891. In the beginning, in addition to the production of electric motors, dynamos and lighting, the manufacture of carbon brushes for electric motors also played an important role. With a change in corporate identity, Carbone Lorraine became the Mersen Group. This name is both a homage to Marin Mersenne, a French theologian and mathematician, and an acronym for the words "Material, Electrical, Research, Sustainable, Energy" which serve as a guide for the company. The company's products are primarily aimed at installers in the electrical industry and manufacturers and users of motors in the automotive, new energies, industry, aerospace and transport sectors. The expanded product range includes measuring devices, power brushes, grounding brushes, lightning protection components and maintenance services.

Wöhner - We are all aware that electrical energy is one of the foundations of our modern civilization. It is the motor for prosperity and quality of life, progress, innovations and culture. Many companies are therefore developing trend-setting solutions for the electrotechnical market, aligning products with new requirements and ensuring that the available energy is used as efficiently as possible. Wöhner GmbH & Co. KG is such an electrical engineering company. It has established itself as a specialist for international fuse and busbar systems, which are mainly used in the areas of energy distribution, control technology and renewable energies. The company headquarters are located in the Bavarian Rödental. The group of companies consists of more than 10 subsidiaries and a nationwide network of agencies in over 80 countries at home and abroad. However, research, quality assurance and production still take place in Germany and thus bear the title "Made in Germany". The company has existed since 1929 and was founded as a small assembly company for electrotechnical installation material. A feeling for details combined with inventive talent has led to more than 100 patents over the years and to the continuous expansion of the product range. The eibabo® shops from eibmarkt® have been sales partners of Wöhner GmbH for many years and regularly recommend the high-quality components to their customers and partners. These include, for example, connection terminals, busbar supports, expansion terminals, switch disconnectors, fuse bases, busbar adapters, covers, fitting sleeve and fitting ring keys, connectors and fuses. Experience has shown that the company maintains exemplary production and delivery logistics. This means that most items in the eibabo® technology store are in stock and can be delivered worldwide at short notice.

Found in shop categories: 8

Load break switches - Do you want to disconnect circuits safely under load? Then you need a switch disconnector. But what do you have to pay attention to when buying a load-break switch? Switch disconnectors are available in many different versions. We give you an overview of the different models and help you to make the right purchase decision.What are switch disconnectors?Under normal conditions, load switches can switch and carry specified currents. Disconnectors, on the other hand, have a higher dielectric strength and lower leakage currents in the isolating distance. The switches must under no circumstances switch themselves back on automatically as a result of environmental influences and must have a clear indication of the off position. In a load-break switch, the functions of a load switch are combined with those of a disconnector. So it is a combination of both. The device protects, switches and separates with a safe isolating distance. This means that a load-break switch can also be used to reliably disconnect or switch a circuit under load up to the respective rated current. In general, we distinguish between three types of switch disconnectors:The classic switch disconnectorClassic switch disconnectors are designed for easy disconnection of a system and are used, for example, as a main switch, emergency stop switch or as a repair switch / maintenance switch. These devices are suitable for frequent switching. In the eibabo® shop you can get products for standard applications, for high-performance applications and for remote controls. In addition, we offer standard infrastructure devices for mounting on DIN rails. Please note that with all these devices, the supply line must always be fused separately.Fuse switch-disconnectorThe fuse switch disconnector combines disconnection with a fuse in one device. With this device, the fuse is cut out when switching. This means: When disconnecting under load, a visible arc occurs. Fuse switch-disconnectors are intended for infrequent switching and are used in industry as main switches or in main power distribution. definitionIn electrical engineering, the term 'isolation' refers to the all-round disconnection (of a part) of a system from all non-earthed lines. Load-break switch with fuseSwitch-disconnectors with a fuse also combine the switching function with a fuse in one device. However, the fuse is activated when the device is switched off. This enables you to safely replace the fuse when it is disconnected. The devices are also designed for frequent switching and are therefore also suitable for high-power applications, as main switches and in the main power distribution.What do I use a switch disconnector for?Load-break switches protect people and machines and are used for:Activation of resourcesSwitching short-circuit currentspower shiftingProtection against overcurrentProtection against electric shock These can be used as the main disconnect device in switchgear, interrupting the power supply to one or more electrical circuits. It is possible to switch or disconnect the circuits even under load up to the level of the respective rated current. With a load-break switch, you separate electrical devices, for example for maintenance work and repair purposes. The aim of the switch is to safely stop the flow of current in order to enable authorized specialist personnel to work safely. It does not matter whether it is a simple or a complex installation. Load-break switches offer ideal performance characteristics for industrial use as on/off switches, main switches, motor switches, control switches, repair switches, emergency stop switches and much more. The function as an isolating switch and load switch makes these devices very economical, especially in small systems, because the use of additional isolating switches is not necessary.Image: Hager HAB406 switch-disconnectorWhat is the difference between a classic switch disconnector and circuit breaker?Switch disconnectors and circuit breakers perform different tasks. The switch-disconnector works with the simple objective. to disconnect the power supply. This allows electricians to carry out their maintenance work, repairs and inspections safely. A circuit breaker can take on more tasks than a load-break switch. A circuit breaker connects, carries and interrupts current under standard switching conditions. This is well suited to perform the duties of a disconnector or load switch. Like the load-break switch, it offers full disconnection if required. You can use the circuit breaker as a protective device because it can control the flow of current like a fuse. The device breaks the circuit under unfavorable conditions such as overload and short circuit. A load-break switch does not offer these advantages. Depending on the model, you can control a circuit breaker manually or automatically.Conclusion: A load-break switch serves as a disconnecting device to completely stop the flow of power and is often associated with a circuit breaker or a load switch. The circuit breaker works as a switching device to interrupt the short-circuit current and the rated current. To ensure maximum security, both devices usually complement each other.How do switch-disconnectors ensure safe disconnection of the current flow?Shifting under load is a special process. Sparks and arcs can occur when two conductive contacts are separated. These allow the current to continue to flow, although the contacts are no longer touching. With small currents, a sufficiently large distance between the contacts prevents the sparks from 'jumping over'. These go out by themselves without making a new electrical connection. If this distance is too small compared to the applied voltage or if the contacts are insufficiently insulated, arcs can form.Electric arcAn arc occurs when there is a high electrical charge difference between two poles. To compensate for this imbalance, a channel forms between the poles. Inside, gas (e.g. air) is ionized and a plasma is created. The current can flow through this plasma channel.These arcs must be extinguished using special protective devices in the switch. Load-break switches and circuit breakers are therefore equipped with specific extinguishing agents in order to stop the energy flow of the arc in good time. Depending on the type of circuit breaker, these are air, oil, insulating gas or vacuum. Special chambers for deionization (arc quenching chambers) are typically used in switch-disconnectors in the low-voltage range. These artificially lengthen the arc until the voltage required to maintain it becomes too great. The arc breaks off and quenching plates prevent it from igniting again.Which switch-disconnectors are recommended?Depending on which requirements you want to meet, your eibabo® online shop offers you the right load switch, disconnector or circuit breaker. When it comes to switch disconnectors, you have the choice between all well-known manufacturers. These include ABB, Ceag, Doepke, Eaton, Elektra, Hager, Legrand Bticino, Siemens and many more.To make your selection easier, the items in this catalog are already sorted by relevance. Enjoy high quality at low prices as well as many secure payment methods and fast worldwide shipping. Catalogue content:In this eibabo® catalogue Low-voltage industrial components > Switch disconnector you will find items from the following product groups:Item overview:Auxiliary circuit breakerAuxiliary switchBasic switchCast pastedConstruction switchDistribution switchDiverter switchEngine switchFeed switchFuse bodyFuse switch disconnectorHard mirrorInsulating housingLoad separatorLow voltage circuit breakerMain switchMolded case circuit breakerMotor drivePadlock lockPlant protectionPower switchPush-through membraneReversing switchService deskStep switchSwitch disconnector protectionSwitch headTransfer switchfrom the following manufacturers:Manufacturer overview catalogue Load break switches:ABBCeagDoepkeEatonElektraHagerHenselKraus & NaimerSchneider ElectricSiemensSontheimerStahlSteidele-Stromvert.Wöhner

Fuse switch disconnectors - In the field of low-voltage switching devices, eibabo offers a wide range of fuse switch disconnectors for the electric distribution. Fuse switch disconnectors combine protection of plant components with switching capability under load and under overload. Thus, fuse switch disconnectors meet the requirements of a load switch as well as the requirements of a circuit breaker. In medium-voltage distribution systems, load break switches are used as main and transfer switches. When using fuse switch disconnectors, no separate disconnectors are needed which makes the use of fuse switch disconnectors particularly important for smaller switchboards. Load break switches are used for switching load-free and loaded transformers, cables and overhead power lines as well as reactive current compensation capacitors. In addition, fuse switch disconnectors are used to increase the safety in circuits, here they replace the simple disconnectors. If fuse switch disconnectors with integrated high-power fuses are used, they can also be applied in networks with higher short-circuit power. In conventional low-voltage networks fuse switch disconnectors are used for interrupting main circuits in the main distribution.Catalogue content:In this eibabo® catalogue Low-voltage industrial components > Fuse switch disconnector you will find items from the following product groups:Item overview:Busbar mounting devicesCapsule fuseCircuit breakerConfiguratorCurrent measurementDistribution switchEMERGENCY STOP switch (load switch)Fuse holderFuse insertFuse switch disconnectorFusesKey switch (load switch)Load switchLoad switch with fuseLoad switch without fuseLoad switch/switch-disconnector with/without fuseLoad-break switch with fuseMain switchNH bus-mount fuse switch-disconnectorNH fuse switch disconnectorNH fuse switch disconnector stripProtection switch disconnector housingRider fuseSafety switchSwitchSwitch disconnectorSwitch-disconnectorSwitch-disconnector without fusefrom the following manufacturers:Manufacturer overview catalogue Fuse switch disconnectors:ABBABNEatonEfenETAGSABHagerHenselMersenMüllerRittalRockwellSchneider ElectricSiemensSpelsbergStriebel & JohnWöhner

Housing load break switch - In this eibabo® catalogue Low-voltage industrial components > Protection switch disconnector housing you will find items from the following product groups:Item overview:Circuit breakerControl switchCounterEmergency switchFuse switch disconnectorFuse switch disconnector housingHousingLoad disconnectorLoad switchMain line distribution fuse switch disconnectorMain switchNH fuse disconnector housingNH fuse switch disconnectorNH fuse switch disconnector housingOff switchOff-load switchOn-off switchPower switchProtection switch disconnector housingRide-on fuse isolator housingRider fuse boxSafety switchSeparatorSwitchSwitch disconnectorSwitch-disconnector housingSwitchgearSwitchgear housingfrom the following manufacturers:Manufacturer overview catalogue Housing load break switch:ABBEatonHagerHenselSpelsberg

Small distributor - accessories - According to the current standards, the structure of electrical distribution boxes consists of certain basic elements. However, as in most cases, there is no limited number of standard solutions. Here, too, individual implementations that are geared to the field of application, the building and other technical requirements must be found again and again. In our eibabo product range for accessories for small distributors, you have a very large selection of high-quality accessories at your disposal. You will find a variety of different modules for data transmission. We also carry sockets for the cable connection. These can be rotated three times and have increased protection against accidental contact. You can get high-quality assembly sets, patch panels and a wide variety of clamps at good prices.Catalogue content:In this eibabo® catalogue Distribution boards > Accessories for small distribution board you will find items from the following product groups:Item overview:Accessories for small distribution boardAccessories for small distributorsAccessories/spare parts for small distribution boardBell transformer connection blockClampClipConnecting combConnector fuse switch disconnector housingCoupling piece for protection switch disconnectorDoorFuse cartridgeGuide slideHigh-voltage group kitInstallation kitInsulating supportInsulation hood phase railIsolation cap phase busbarMounting frameMounting kitMounting setMounting set cooker groupMounting set power current groupPage moduleSeparator slideSpare parts for small distribution boardStove group kitSupplementary component for small distributorsSwitching bridgefrom the following manufacturers:Manufacturer overview catalogue Small distributor - accessories:ABBABNEatonHagerMersenOBOPhoenixRittalSchneider ElectricSiemensSpelsbergStriebel & JohnWalther

Fuse strip - In electrical engineering, fuses are electrical components that protect circuits from overvoltage and prevent the resulting damage to other components, installations and buildings. Surely you know that the most important of them are the so-called fuses, residual current circuit breakers and automatic circuit breakers and, in their capacity as protective devices, use the different effects of the electric current to interrupt the circuit in the event of an overload. In addition to the fuses, you can also get all other items that you need to create your own individual energy supply in the eibabo technology store. These include cables, connection material, consumables, fuse boxes and various measuring and testing devices.Catalogue content:In this eibabo® catalogue Low-voltage industrial components > In-line fuse base you will find items from the following product groups:Item overview:Blind deviceBusbar systemCoupling switch barDivider barDouble safety barEmpty space coverageFuse barFuse baseFuse monitoringFuse strip, switchableFuse switch disconnectorFuse switch disconnector, switchableIn-line fuse baseLoad switch barPower distributionProtection switch seperatorReserve seatRider securing elementSwitch barSwitch disconnectorfrom the following manufacturers:Manufacturer overview catalogue Fuse strip:ABBABNEatonEfenGSABHagerMersenMüllerRittalSiemensStriebel & JohnWöhner

Assembly group nh-fuse - In this eibabo® catalogue Energy distribution systems > Distributor assembly Low Voltage HRC fuse systems you will find items from the following product groups:Item overview:Blind coverCover plate systemDistribution assembly fuse systemsDistribution assembly NH bus-mount fuse switch-disconnectorDistribution assembly NH fuse systemsDistribution interior fittingsDistributor assembly Low Voltage HRC fuse systemsFuse load break moduleFuse switch disconnectorInstallation kitInterior designInterior design systemLow Voltage HRC fuse baseManifold assemblyManifold constructionModuleNH fuse switch disconnector assemblyNH fuse switch disconnector strip assemblyProtection switch disconnector housingSwitch disconnectorSwitch-disconnector modulefrom the following manufacturers:Manufacturer overview catalogue Assembly group nh-fuse:HagerStriebel & John

Load switch - What are load switches and what are the switches used for? What switching properties do the different load switches have and how can you use them for your system? There are many different types of load switches on the market. And safety is the top priority when switching electrical devices. It is therefore important to choose a load switch that is suitable for your application. The following article should help you to make the right purchase decision.What are switching devices?Switching processes are omnipresent in electrical engineering. However, it is often not clear to laypersons which switch is the right one for the respective application. We give a brief overview of the various switching devices and take a closer look at the load switch. TIP:Working on electrical systems is dangerous for laypersons. Leave installations, repairs and maintenance to an experienced electrician. Switching devices are electrical devices that are used to control, switch or regulate electrical currents and voltages. These include, for example, switches, relays, current transformers, rectifiers and transformers. Their task is currentless switching, switching operating currents and/or switching short-circuit currents. The devices are differentiated according to their rated data, the switching task and the switching frequency. Commonly used switches are, for example:circuit breakerCircuit breakers are used for currentless switching on and off. Their task is to switch off downstream equipment in order to be able to work on it safely.load switchLoad switches switch currents up to their rated operational current. These switches are also used to switch on currents on an existing short-circuit up to the rated short-circuit inrush current.switch disconnectorLoad-break switches are a combination of load switch and disconnector. These are load switches with a safe isolating distance.circuit breakerIn the event of faults within the scope of the rated values, circuit breakers can switch on and hold high overload currents and switch off without damage.contactorA contactor is similar to a relay and is designed as a switch for high power with a high switching frequency. This is a device with a limited short-circuit making capacity and short-circuit breaking capacity.For safety:Isolating equipment serves to ensure safety when working on electrical systems. There must be an all-round separation from non-earthed lines. The fact that there is no voltage is no guarantee for activation.When selecting a switching device, please note not only its switching characteristics, but also the key figures with regard to:rated voltageRated operational currentrated surge currentRated short-circuit making currentRated short-circuit breaking currentRated breaking currentRated Insulation LevelType of arc quenching Load switches, load-break switches and the circuit breakers that are also often used are among the classic basic items in the eibabo® online shop. Convince yourself of our fair prices and look forward to fast delivery.What is a load switch?A load switch is a switching device for low and medium voltage ranges. This safely switches operating currents and short-circuit currents on and off under normal operating conditions. In contrast to a circuit breaker, this is usually not provided with secondary protective devices. In other words: A load switch is a switch for switching loads without a safe isolating distance. A classic example of this is the normal switch to turn the light on and off.What types of load switches are there?In the eibabo® shop you can get a large number of different load switches. These include reversing switches, star-delta switches, emergency stop switches, changeover switches, Dahlander switches, step switches and undervoltage releases. Depending on the design, the load switches can be surface-mounted, used in switch consoles or mounted as a series installation device on the DIN rail.What do I need a reversing switch for?The reversing switch is also known as a cam switch and usually has a zero position as well as a position 1 and position 2. No contact is closed in the zero position. The contacts of positions 1 and 2 are switched in such a way that a three-phase motor runs either clockwise or counterclockwise. The direction is switched over via the zero position.What is a star-delta switch?In three-phase systems, star connection and delta connection are most commonly used. Three-phase current, or three-phase alternating current, is generated in three coils, each offset by 120°, in a homogeneous magnetic field. With the star connection, one coil connection from each of the three coils is connected to a common star point. This star point serves as a connection for the neutral conductor. The other connections of the three coils form the three outer conductors. In a delta connection, the two terminals of one coil are each connected to one terminal of the other two coils. There are three connection points for connecting the three outer conductors. There is no neutral wire. The star-delta switch combines these circuits or allows switching between the circuits. This is necessary, for example, when starting a three-phase motor. In the star connection, the motor only requires about a third of the starting current. When the engine has started, it switches to delta connection. The motor draws more current in the delta connection and therefore has a higher output.You can also get combined reversing star-delta switches in the eibabo® shop.Picture: Eaton T0-4-8410/I1 star delta switchWhat do I use a Dahlander switch for?The Dahlander switch is used in so-called asynchronous machines (motors with switchable poles). The switch alternates between a delta connection and a double star connection. This changes the number of poles in a ratio of 1:2. This results in a change in engine speed of approximately 2:1. The classic application is, for example, lathes, which have a fast and a slow run.What are step switches?Electrical switches with several switching positions are called tap changers. Usually tap changers are constructed as rotary switches. The individual stages are used, for example, to change the voltage step by step or to switch the signal.What do I use undervoltage releases for?Undervoltage releases are electromagnetic or electronic components that trigger a switch-off process when the control voltage drops or fails. On the one hand, this protects sensitive devices, assemblies and drives from operation outside the required nominal voltage. On the other hand, it prevents, for example, rotating machines from starting to move uncontrollably when the voltage returns. Catalogue content:In this eibabo® catalogue Low-voltage industrial components > Off-load switch you will find items from the following product groups:Item overview:Cast pastedCentral built-in switchControl switchDahlander circuitDahlander switchFuse switch disconnectorHeater switchLoad current switchLoad switchLockingMachine switchMain switchMaintenance switchMini cam switchOff switchPotentiometerRepair switchReversing buttonReversing switchSeries switchSolar switchStar-delta switchSurface-mounted housingSwitch disconnectorSwitch position indicatorSwitching deviceToggle switchTransfer switchfrom the following manufacturers:Manufacturer overview catalogue Load switch:EatonElektraHagerHeliosKraus & NaimerMaicoMennekesRockwellSchneider ElectricStahlSälzer