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Stahl - Dangerous conditions prevail in many areas of industrial production. Extreme caution should be exercised when handling fire, chemicals or high pressure. Stahl is a company that takes care of safety in production plants. Stahl can look back on more than 140 years of company history and, as a global brand, has developed into one of the world's leading experts in explosion protection and plant safety. From individual products to complete system solutions and services, the company has everything on offer: explosion protection and safety technology in all forms, be it LED lighting, control boxes, signaling devices or monitoring devices and much more. During production, the company relies on the latest technologies and many years of experience in order to achieve excellent quality and convincing workmanship. The know-how is used in sectors such as the oil and gas industry, the chemical and pharmaceutical industry, the food industry and in mechanical engineering and shipbuilding. With subsidiaries in 21 countries, seven production sites and branches at over 50 locations, R. Stahl Aktiengesellschaft has a global presence. An essential part of explosion protection is ensuring the health and safety of people. For the implementation of appropriate measures, the eibabo® shops from eibmarkt® sell, among other things, indicator lights, switching amplifiers, switches, junction boxes, safety barriers, locking buttons, fuses, linear lights, cable glands, switching amplifiers as well as assembly material and tools. Wherever you need a protective device, your eibabo® technology store will ship the numerous Stahl brand products and solutions quickly and safely worldwide.

Found in shop categories: 9

Auxiliary contact block - Auxiliary switch blocks are an ideal supplement for auxiliary and power contactors. The auxiliary switch blocks we offer differ in design and mounting type, switching type (changeover, opener, closer) and number of contacts. Learn more about these devices in the following post. At eibabo® you will find a huge selection of high-quality auxiliary switch blocks with different specifications. These include:Execution of the electrical connectionType of installation and fasteningHeight of the rated operational currentand more Products such as the auxiliary switch block are among the low-voltage switching devices and are primarily used in electrical distribution installation and the installation of electrical distribution boards. Typical areas of application include engine controls and system controls, switching of lighting systems and multiplication of signals. Switch blocks expand the number of contacts with auxiliary contacts for control.Already knew?Contactors have auxiliary contacts and main contacts. The auxiliary contact is a mechanically operated contact in the auxiliary circuit. This is physically connected to the main contacts and is actuated simultaneously, carries less current and is called the auxiliary contact or control contact.Find out more about the function, structure and use of an auxiliary switch block in the following article.What is an auxiliary switch?An auxiliary contact or auxiliary switch is an additional contact within a circuit. This is used to regulate the amount of current that can flow through the system. Such a device is often installed when more current needs to flow than a single contact can handle. In practice, at least two contacts are then required. If there were only one auxiliary contact, under certain circumstances too much current would flow at one point in the circuit. This means: some areas receive no power, other areas receive more power than required. The amount of current flowing through the individual areas can be regulated with two or more contacts. This ensures that an even and correct power supply is guaranteed everywhere.How does an auxiliary switch work?When an overload trips a relay or fuse, the connected cable is also heavily loaded. In order to exclude the associated dangers, another, usually larger, switch can be controlled with an auxiliary switch. The auxiliary switch consists of a coil with high-current contacts and two sets of low-current contacts. In contrast to the coils of the main switch, these are not designed for continuous operation in the entire system. However, the auxiliary switch has delay functions. These prevent arcing and possible damage when opening the auxiliary switch while the main switch is still live.Image: Eaton DILA-XHI22 auxiliary switch moduleWhy should I use an auxiliary switch?They protect your circuit breakers and devices from damageSince auxiliary switches trip when a circuit is overloaded, the main switch or fuse are not overloaded. This protects your devices from damage caused by current spikes and heat build-up, to which your under-capacity fuses and circuit breakers would not respond. Auxiliary switches are often equipped with their own fuses. In the event of an overload due to a short circuit, its fuse will therefore trip without affecting the main circuit breaker. The auxiliary switch protects your devices from wear and tear, which would be caused by circuit breakers tripping frequently.You protect yourself from electrical hazardsAuxiliary switches ensure that no dangerous electrical faults occur due to the triggering of overloads. If an overload is not triggered, this may lead to:failures in the circuitsoverheating of componentselectric shocksfire hazard Auxiliary switches minimize these risks and ensure a safer working environment.They minimize the risk of power failuresAuxiliary switches minimize the risk of power failures because the circuit breaker is not overloaded. Even before fuses or circuit breakers trip, an overloaded circuit can cause overheating, damage to equipment, personal injury from electric shock, and other malfunctions. Auxiliary switches trip in the event of overloads before a critical level is reached. This ensures optimal performance and life expectancy for your electrical system.They increase the life expectancy of circuit breakersWithout an auxiliary contact, the circuit breaker would have to handle the additional current required by under-capacity circuits. This would degrade their ability to dissipate heat. And this leads to degradation of circuit breaker performance over time. Auxiliary switches limit the current and ensure that the main circuit breaker is not subjected to dangerous overloads.What is the difference between auxiliary switches and circuit breakers?A circuit breaker uses an insulating washer that separates the two sets of contacts. Protecting high currents and voltages on circuit breakers requires a lot of force to make a conductive connection. The classic useMost often, a circuit breaker with main contacts and auxiliary switches is used to control the operation of motor-driven equipment. When the device is not powered, a spring mechanism keeps the two sets of contacts apart. When the circuit breaker is actuated, the spring is released and the two contacts come together.An auxiliary switch requires less pressure to open and close. When closed, the two sets of contacts touch via a metal bridge. If there is a problem with the circuit breaker mechanism or an overload is detected, one pair of contacts will easily separate from the other. As a result, further protective measures can be taken, including opening the main contacts or turning them off completely. Auxiliary contacts are therefore used for monitoring, so that in the event of a malfunction, the main contacts can be opened before there is a problem with the device or the circuit breaker.As a leading specialist center for electrical engineering, the eibabo® technology store only offers you high-quality auxiliary switches and auxiliary switch blocks. Our range includes products from the manufacturers ABB, Eao, Eaton, Hager, Mennekes, Schlegel, Siemens, Stahl and Steute. Use our numerous payment methods and have your order delivered directly and quickly worldwide.  Catalogue content:In this eibabo® catalogue Low-voltage industrial components > Auxiliary contact block you will find items from the following product groups:Item overview:Auxiliary switchBuilt-in switchConnection baseContact setControl unitEngine monitoringFlat connectorFuseFuse cartridgeInrush current limiterInstallation kitLate break contactLoad disconnectorPendant controlPhase barrierProvisionPush buttonRail mounted devicesResetSealing hoodSignaling contactSwitch blockSwitch-on readySwitching cycle counterSwitching elementTouch protectionTripped signaling moduleVoltage releasefrom the following manufacturers:Manufacturer overview catalogue Auxiliary contact block:ABBEaoEatonEuchnerHagerKraus & NaimerLegrand BticinoMennekesMitsubishiRafiRockwellSchlegelSchmersalSchneider ElectricSiemensStahlSteute
Power switches motor protect. - Do you want to protect an electric motor from damage caused by overload or short circuits and need a motor protection switch for this? In this catalog from the eibabo® shop, we present a wide variety of circuit breakers for reliable motor protection. Read here how to find the right device and what you should pay attention to when buying it.Large machine parks are in operation, especially in industrial production. A correct function before and also after unforeseen events is of the utmost importance here. But even on a small scale, the electric motors used should function stably. For this reason, machines are protected against disturbances in the power supply and against overloads. Such errors occur, for example, due to improper maintenance, leaks, wear and tear or simple short circuits. Constant protection of the health and life of machine operators is just as important. Therefore, electricians and occupational safety specialists pay close attention to the implementation of all necessary measures to maintain business operations and protect employees. Motor protection switches are a component of such a safety package.What is a motor protection circuit breaker?The motor protection switch is a switching device for controlling the electric motor. The device serves to switch on, switch off and conduct current in the normal state of the circuit. The switch also has the task of automatically switching off the engine in emergency situations. The main function of motor protection switches is to protect devices from overload and short-circuit currents. When the rated current is exceeded, the circuit breakers shut off the power, ensuring the safety of electrical equipment and people.What is meant by thermal and magnetic motor protection?The tripping characteristic of a circuit breaker for motor protection is usually based on built-in thermomagnetic protection. This standard includes:protection against short circuits via a magnetic circuit breakerprotection against overload by means of a thermal circuit breaker  TIP:For safety reasons, we recommend always choosing a combined motor protection switch with both types of protection. The magnetic circuit breaker for short-circuit protection must respond quickly in the event of a high current. This type of protection is precise, reliable and economical. Ambient temperature changes do not affect tripping characteristics. Compared to thermal circuit breakers, magnetic circuit breakers have more precisely defined trigger parameters. The magnetic circuit breaker uses an electromagnetic mechanism. This is dimensioned differently according to the respective performance specifications of the motor protection switch. When the current reaches a certain threshold, the circuit is immediately broken. As a rule, this is set in such a way that tripping only occurs at ten times or more than the normal operating current of the motor. This avoids tripping during normal engine starting.The thermal circuit breaker for overload protection reacts with a delay because a motor usually draws a higher current when starting. This type of protection is one of the most reliable and economical types of protection for electric motors. These handle high starting currents and protect the motor from failures caused, for example, by a blocked rotor. The thermal overload protection works with a bimetallic strip. Deformation occurs when the bimetal is heated to a critical temperature by the current flowing to the motor. This indicates that the power consumption is continuously too high. The motor is under excessive load and may stall or otherwise fail. A special feature of thermal circuit breakers is their temperature compensation. In this way, a precise triggering behavior defined according to the respective calibration is guaranteed at different ambient temperatures.Image: Eaton PKZM0-1 motor protection switchWhat circumstances can cause a motor protection switch to trip?A wide variety of faults can occur during the operation of an electric motor. It is therefore important to be aware of these dangers, assess the probability of failure and anticipate possible causes. In this way, a motor can be optimally protected. An electric motor can fail or be damaged under the following conditions:Poor power quality due to high voltage, under voltage, surges, frequency change, incorrect installation or malfunction of the electric motor itselfGradual increase in temperature or reaching and exceeding the permissible limit values due to frequent switching on and off, insufficient cooling, high ambient temperature, reduced atmospheric pressure, high temperature of the working medium or excessive viscosity of the working mediumSudden rise in temperature due to blockages in the motor drive or phase failure Where are motor protection switches installed?The most common motor protection switches are designed as built-in devices. Alternatively, depending on the model, it can be installed in the control cabinet on the DIN rail. Mounting directly on the machine is obvious, because a machine is usually switched ON and OFF via the motor protection switch. Manual power on is done by pressing the start button labeled 'I' or '1'. Depending on the version, this can also be a rotary switch. Manual shutdown is done by pressing the stop button or turning the switch position back to '0'.What should be considered when selecting a motor protection switch?Basically, when selecting a circuit breaker for motor protection, you should be guided by three criteria: the rated current, the overload current and the short-circuit current. The rated current of the machine is the maximum allowable current at which the circuit breaker can remain on indefinitely. However, it is of no use if the switch is correctly selected in terms of current rating, and the wiring does not withstand the load, melts and causes a short circuit. Choose the motor protection switch not only according to the nominal power of the machine, but also the cable cross-section and the quality of the wiring. Thermal overload protection suitable for your system and magnetic protection against short circuits should be considered on the same premises.Notice:With motor protection switches, a mechanical load on the device cannot be ruled out. The switches are therefore often made of very robust and self-extinguishing plastic.When buying, make sure you choose a brand you trust. A motor protection switch must function reliably and, in an emergency, have the declared properties. This cannot be guaranteed without a doubt for no-name items. The price difference to a high-quality original is not that big when you compare the safety of man and machine. Therefore, opt for products from trusted manufacturers such as ABB, ABL, Condor, Eaton, Hager, Helios, Maico, Rockwell, Schneider Electric, Siemens and Stahl.Convince yourself of the quality of our articles. Your purchase is always protected by our buyer protection. We ship worldwide and offer you the shortest possible delivery time.  Catalogue content:In this eibabo® catalogue Low-voltage industrial components > Motor protection circuit-breaker you will find items from the following product groups:Item overview:AC voltageAlternating currentBasic switchCircuit breakerControl unitEngine outputEngine protectionEngine starterEngine switchLoad current switchLoad disconnectorLoad switchLow voltage circuit breakerLow voltage switchMolded case circuit breakerMotor protection functionMotor protection switchMotor protection switch systemOverload protectionShort circuit protectionSpring terminalStarter combinationStarter combinationsSwitch disconnectorTransformer circuit breakerfrom the following manufacturers:Manufacturer overview catalogue Power switches motor protect.:ABBCondorEatonHagerMaicoRockwellSchneider ElectricSiemensStahl
Circuit breaker - Are you sure that your electrical installation offers correct protection against overcurrents? Errors in protection can have dangerous consequences. Read here what you should pay attention to and the importance of the high-quality miniature circuit breakers from our eibabo® online shop.The use of electronic devices is a matter of course for us. Their use is comfortable and safe. But what happens if the television, washing machine, oven or refrigerator has a short circuit or overcurrent? These devices would be permanently damaged and fire accidents would be the result if suitable protective mechanisms were not activated as quickly as possible. In everyday life, hardly anyone thinks about these dangers. Why is that? Various safety elements are integrated in today's electrical installations, which protect people, electrical devices or the circuits themselves from damage caused by overcurrent. Modern miniature circuit breakers, among others, perform this task. They are also called circuit breakers or fuses. Do you remember?Historically, fuses contained a metal wire or strip that would melt if overcurrented, interrupting the flow of current. As a result, a tripped fuse was destroyed and had to be replaced. These so-called safety fuses are still used today, for example in vehicle construction. Circuit breakers work differently, can be reactivated manually after tripping and thus offer obvious advantages over fuses.What are circuit breakers?All non-adjustable circuit breakers are referred to as miniature circuit breakers, also known as MCBs. MCB is the abbreviation for the English term 'Miniature Circuit Breaker'. It is always an overcurrent protective device in the electrical installation when used in low-voltage networks. Miniature circuit breakers protect lines from damage caused by heating up as a result of excessive current, usually caused by a short circuit. The miniature circuit breaker is a reusable safety element that does not reset itself automatically. This makes handling very safe and you can quickly restore the power supply after it has been triggered. There are no high maintenance and replacement costs. Combinations of a miniature circuit breaker (MCB) with a residual current device (RCCB) are also available, these combined devices are referred to as RCBO devices (English: 'Residual current operated Circuit-Breaker with Overcurrent protection').What were the different miniature circuit breakers developed for?The miniature circuit breakers available from eibabo® differ not only in their rated current and design, but also in their tripping characteristics. The following standardized tripping characteristics are currently permitted for miniature circuit breakers:Type B (standard line protection)Type B miniature circuit breakers are the usual variants for private use. These switch off the circuit as soon as the current exceeds three to five times the actual current flow. Type C (higher inrush current for machines or lamp groups)Type C switches are used, among other things, in household appliances and in commercial devices such as fluorescent tubes, PCs, printers and servers. These break the circuit when the current exceeds five to ten times the actual current flow. Type D (for highly inductive or capacitive loads, e.g. with transformers, magnets or capacitors)Type D MCBs offer high resistance. These turn off the circuit when the current exceeds ten to twenty times the actual current flow. Type E (SLS / circuit breakers for main lines)SLS stands for 'Selective Circuit Breaker'. This triggers with a time delay when the current exceeds 5 to 6.25 times the actual nominal current. This means that downstream fuses or classic miniature circuit breakers switch off the current beforehand. Type K (with high inrush current with sensitive overload tripping)Type K miniature circuit breakers trip at eight to twelve times the actual current flow. These protect heavy-duty equipment such as compressors, winding motors and X-ray machines. Type Z (semiconductor protection with high line impedance)Type Z miniature circuit breakers are sensitive to short circuits and are used in semiconductor production. These break the circuit when the current exceeds two to three times the actual rated current. Image: Hager MCN316 miniature circuit breaker 3-poleIs the installation of miniature circuit breakers absolutely necessary?Miniature circuit breakers for lighting circuits and socket circuits are mandatory in the circuit distributors of apartments and residential buildings. You must install these. For industrial installations, in industrial plants and in trade, please pay attention to the higher requirements for miniature circuit breakers. Here, miniature circuit breakers / MCBs often also protect equipment and devices.How does a circuit breaker work?Miniature circuit breakers usually have two trigger mechanisms, the electromagnetic quick release and the thermal release. When an overcurrent flows through the circuit breaker, a bimetallic strip in the thermal trip unit heats up and bends. This triggers an interlock, interrupting the flow of current in the circuit. This process protects against hazards or damage to devices that can result from the overload. In addition, the melting of the lines is prevented. In the event of a short circuit, the electromagnetic trigger acts. Here the current suddenly increases and a magnetic field builds up inside a coil. A bolt reacts to this, hitting the trigger mechanism in fractions of a second and interrupting the circuit.NoticeIn the circuit breaker, the outer switching lever is not directly connected to the actual switching mechanism. The device also triggers reliably if the shift lever is jammed, locked or manipulated.To get the current flow going again, the circuit breaker can be reactivated using the shift lever.What is the difference between single-pole and multi-pole miniature circuit breakers?You use single-pole miniature circuit breakers, for example, for circuits with single-phase alternating current. Three-pole miniature circuit breakers are used in AC circuits with three current-carrying phases. In the event of an overcurrent or short circuit, these are able to switch off all phases. This happens even if the fault affects only one phase. recommendationWe advise you to protect multi-phase circuits with a multi-pole circuit breaker. Do not divide the individual phases into single-pole circuit breakers. Working with electricity is dangerous. Please have changes or extensions to your system carried out by a specialist electrician.Which miniature circuit breakers are recommended?A large selection of miniature circuit breakers for electrical distribution installation can be found in the eibabo® online catalogue. We carry high-quality and reliable miniature circuit breakers from well-known and well-known manufacturers such as Siemens, ETA, ABL Sursum, ABB Stotz S&J, Eaton, Hager, Schneider Electric or from Moeller, Doepke and Stahl.  Catalogue content:In this eibabo® catalogue Circuit breakers and fuses > Miniature circuit breaker (MCB) you will find items from the following product groups:Item overview:AC circuit breakerAC voltage machineAuxiliary circuitBuilt-in deviceBuilt-in distributor deviceBuilt-in machineBusbar automatBusbar fuseCable circuit breakerCircuit breakerControl circuit breakerDC circuit breakerDC voltageDirect currentDirect current machineEnergy TechnologyHigh performance circuit breakerInstallation machineMCB circuit breakerModular installation deviceMotor protection switchOvercurrent protectionOvercurrent switchPlug-in circuit breakerRail mounted devicesScrew circuit breakerShort circuitTax securityfrom the following manufacturers:Manufacturer overview catalogue Circuit breaker:ABBABNBachmannDoepkeEatonETAHagerMurrelektronikPhoenixSchneider ElectricSiemensStahl
Single position switches - Do you want to use single-position switches to control movements? Then use single position switches or limit switches. But what types of single-position switches are there and where are they best used? Find out here. Their functional principle is the same as with conventional switches, except that the switching process is automated or determined by external influences. Such an installation will help you avoid manual shifting where it is particularly difficult and/or dangerous.Image: Schneider Electric XCKM115H29 position switchWhat are single position switches?You won't use single-position switches that often in your home. Their areas of application are more in the industrial sector. There they ensure that a hydraulic, pneumatic, electrical or mechanical signal is triggered when a moving object has reached a specific position within a sequence control. This means, for example, that the position switch is activated or deactivated when the end of a specific production section has been reached and the next step in the process is to be started. Single position switches are also called limit switches, position switches or limit switches.What types of single position switches are there?Since the requirements in the industrial sector often depend on the respective process, the individual position switches can also be very different. A suitable solution is available for almost every application. In the following we will go into more detail about the functional principles and properties of the individual variants.Mechanical single position switchesSingle position mechanical switches can be found in both production and household settings. These switches often take the form of a button, roller, float, or lever. The classic example of the use of a mechanical single-position switch is the elevator. Only when the elevator car has reached a certain position can the door be opened. But these devices are also used in living areas in the form of microswitches. These can be found on front doors, for example, so that the lighting is switched on automatically when they are opened.Single position switch with push button or wheel switchThese versions of the single position switches consist of a housing with electrical contacts that can either open or close. These are connected to a roller with a push button or a rod. The functional principle here is also a movement mechanism. For example, if the wheel collides with another object, it is pushed down by a rod. This opens or closes the contacts in the housing and triggers a follow-up action.AssemblyWhen installing such a single-position switch, particular attention must be paid to accuracy. Otherwise, the movement of an object may not actuate the roller or push button properly, or, conversely, apply too much pressure.This may then lead to faulty switching or damage to the mechanism.micro switchSingle position switches as micro switches are used in electronics as well as in household appliances and are very small. Thus, these devices have special properties. Due to the compact dimensions, the stroke of the working part is small. As a result, installation often requires fine tuning or the use of an intermediate link. This makes it possible to increase the stroke of the working part to the extent required to ensure reliable switching.Non-contact single position switchesThis type of single position switch is widely used in industrial production. The market offers numerous variants as well as different functional principles and designs. The most important are:reed switchThis type of limit switch reacts to a magnetic field. These devices consist of several pairs of ferromagnetic contacts. The contacts inside the reed switch close or open when a magnet approaches. Since no mechanical movements trigger the contact process, the service life of the switch increases significantly. A magnet must be present as a trigger during installation, as these devices do not react to other materials. The field of application of reed switches is very diverse. These often work as a microswitch variant, for example as an alarm switch on doors and gates. When the door is closed, the magnetic field acts on the reed switch and the circuit also remains closed. When the door is opened, the magnet moves away from the reed switch. The contact opens and the alarm is triggered.Inductive switchesInductive switches are suitable alternatives to mechanical types of position switches and work without direct contact. The devices work by means of an inductor, which reacts to metal. Compared to the reed switch, these switches do not require a magnet. Inductive models are used in security systems because they respond to both the weight of a metal and its movement. The advantage of inductive switches is their tolerance to environmental pollution. As a result, inductive switches are mainly used in technological processes of industrial production. The size can vary greatly depending on the place of use and function.Switches with optical sensorsSwitches with optical sensors are also non-contact single-position switches. Such devices are often used in areas where special accuracy is required. Optical position switches work according to several principles.Reflective sensors send and receive light, which is reflected by an object located in the sensor area. Receiver and transmitter are in the same housing. The captured light energy causes a specific action at the output of the switch. The distance from the object to the sensor depends on its dimensions, texture, color and so on. If the light beam is crossed by another object and thus changes the captured light energy, a control signal is emitted. The range of such a position switch depends on the environment and its transparency.With passage sensors, the receiver and light source are separate and face each other. An object entering the area of the light beam interrupts the light and thereby changes the light energy. Then a signal is triggered.Capacitive position switchesThe principle of operation of capacitive position switches is as follows: The active surface of the switch consists of two metal electrodes. These can be thought of as capacitor plates. If an AC voltage is applied to it, current flows. The strength of the current flow depends on the medium located between the plates, the distance between the plates and the plate size. TIPCapacitive switches detect conductive and non-conductive materials in liquid, powder, or solid states. When an object appears near the active surface, the strength of the current flow changes. The position switch reacts to this and triggers an action.Are there also wireless single-position switches?Wireless instead of cable ? the wireless position switch offers you additional flexibility when designing machines and systems. You can mount these switches on fixed and moving components without a great deal of assembly work, without having to lay cables or ensure that the cables are laid without any problems. Depending on the manufacturer, the devices offer different transmission protocols or the option of integration into different wireless networks. The differences lie in the range and transmission security, among other things. In addition, there are models with or without feedback (monodirectional or bidirectional).With the single position switches from the eibabo® online shop, you can automate your production processes and thereby improve your efficiency. Since these switches are intended for industrial use, they are very robust, protected from dust and water and are particularly reliable. Manufacturers of high-quality single-position switches are ABB, Eaton, Honeywell, Omron, Rockwell, Schneider Electric, Siemens, Stahl, Steute and others.  Catalogue content:In this eibabo® catalogue Sensors > End switch you will find items from the following product groups:Item overview:Auxiliary blockAuxiliary switchAuxiliary switch moduleBasic switchComplete deviceCross switchmetalMagnetic force lockingMagnetic switchMetal bodymetalMisalignment switchObject detectionPerimeter SwitchPrecision switchProcess protectionRod leverRoller lever buttonRoller position switchRoller tappetRow position switchSafety interlockSafety position switchSafety switchSecurity sensorSecurity technologySingle position switchSpring lockingStandard twist gripSwitching point settingfrom the following manufacturers:Manufacturer overview catalogue Single position switches:ABBBaumerBernsteinEatonElobauEuchnerHoneywellKiepeKisslingKlaschkaOmronPilzRockwellSchmersalSchneider ElectricSickSiemensSteute
Explosion-proof signalling horn - Alarm horns as audible signaling devices are devices that are used to generate acoustic signals. Depending on the construction, alarm horns are powered with electric energy or compressed air. In the fire-protection technology, in fire extinguishing systems with gaseous extinguishing agents, alarm horns are used to announce a finished or imminent flooding of the protection area. You can also use alarm horns, for example, in process control to signal that certain thresholds have been exceeded. In electrically operated signal horns or sounders, a steel diaphragm is responsible for sound radiation. Together with an iron block, which closes the magnetic circuit, the membrane also forms the mechanical resonator. The fundamental frequency of the horn is determined by the mass of the iron block and the restoring force of the membrane used. Often, an additional horn is mounted for effective sound emission. The shape and material of the steel membrane determine, in addition to the internal cushioning and the spring characteristics of the system, the range of harmonics and the sound character of the horn. In contrast to electrically operated alarm horns, pressure horns operate acc. to the principle of a cushion whistle or the principle of a valve periodically closed by the flow. Some of the compressed air-operated alarm horns have a diaphragm which detects the flow and closes the valve.Catalogue content:In this eibabo® catalogue Optical and acoustic signalling equipment > Explosion proof signal horn you will find items from the following product groups:Item overview:Ex signal hornExplosion proof signal hornExplosion-proof signal hornExplosion-proof signaling deviceSignaling devicefrom the following manufacturers:Manufacturer overview catalogue Explosion-proof signalling horn:Stahl
Control switch - We all use switches or buttons every day to switch certain electrical devices on or off. It starts early in the morning when we turn off the alarm clock, turn on the light in the bathroom and activate the electric toothbrush. So we're barely awake for five minutes and have already pressed three buttons or switches. But a switch is not a button and a button is not the same as a push button switch. As different as these assemblies are, as diverse are their functions and areas of application. With the control switches offered in this eibabo catalogue, you can influence the control and operation of machines. This can, for example, only be the classic switching on and off, but also the specification of a direction of movement, the selection of a certain operating status or the setting of speeds and directions of rotation. These control switches are specially designed for use in the industrial sector, have a simple structure, are functionally designed, are easy to understand in terms of their operation and are designed to be correspondingly robust and durable.Catalogue content:In this eibabo® catalogue Low-voltage industrial components > Control switch you will find items from the following product groups:Item overview:Cam switchCode switchCoding switchControl elementControl switchCounterFront panel switchGroup switchKey switchLevel switchOn-off switchPackage counterReverserReversing buttonReversing switchRotary switchRotary toggleSelector buttonSelector switchSelector switch complete deviceSelector switch, completeSeries switchSpeed controllerStep switchSwitchSwitch disconnectorToggle switchTwo-way switchfrom the following manufacturers:Manufacturer overview catalogue Control switch:EatonKraus & NaimerMaicoRockwellSchneider ElectricStahl
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1 From 222
No results were found for the filter!
RECOMMENDED
3D
Stahl - 8040/11-V30-033-B - On-off switch EEx e - Ex-proof off switch 8040/11-V30-033-B
£116.52 incl. VAT (£0.00)

*

On-off switch EEx e - Ex-proof off switch
Stahl
| 8040/11-V30-033-B
RECOMMENDED
3D
Nobile - D 3830 ni/gebt - EB light - Downlight/spot/floodlight 1x50W D 3830 ni/gebt
£10.15 incl. VAT (£0.00)

*

plus shipping
(£20.76 RRP***)
EB light - Downlight/spot/floodlight 1x50W
Nobile
| D 3830 ni/gebt
RECOMMENDED
3D
RECOMMENDED
3D
Fakir SDA - HF 500 stahl/gr - Frost Guard Prestige - Convector HF 500 stahl/gr
£47.89 incl. VAT (£0.00)

*

Frost Guard Prestige - Convector
Fakir SDA
| HF 500 stahl/gr
RECOMMENDED
3D
RECOMMENDED
3D
Neuhaus Leuchten - 9115-55 - LED wall light 3000K steel - Spot light/floodlight 9115-55
£93.92 incl. VAT (£0.00)

*

plus shipping
(£160.19 RRP***)
LED wall light 3000K steel - Spot light/floodlight
Neuhaus Leuchten
| 9115-55
RECOMMENDED
Returns
3D
RECOMMENDED
3D
Stahl - 9143/10-156-160-10s - Exi power supply 9143/10-156-160-10s
£861.78 incl. VAT (£0.00)

*

Exi power supply
Stahl
| 9143/10-156-160-10s
RECOMMENDED
3D
RECOMMENDED
3D
Stahl - 8010/2-01-LED - Indicator light LED 8010/2-01-LED
£174.64 incl. VAT (£0.00)

*

Indicator light LED
Stahl
| 8010/2-01-LED
RECOMMENDED
3D
Stahl - 8493/11-22-6 230V AC - Sounder 230V AC 8493/11-22-6 230V AC
£4,307.79 incl. VAT (£0.00)

*

plus shipping
(£5,338.24 RRP***)
Sounder 230V AC
Stahl
| 8493/11-22-6 230V AC
RECOMMENDED
3D
Stahl - 9002/13-280-093-001 - Security barrier two channel - Current value transformer 9002/13-280-093-001
£164.60 incl. VAT (£0.00)

*

Security barrier two channel - Current value transformer
Stahl
| 9002/13-280-093-001
1 From 222