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Different versions available.
Position switches are used to monitor the position of moving parts of machines and plant. Can be used in safety circuits, as the device satisfies EN 60947-5-1 / DIN VDE 0660 part 200, and the opening contacts are positive opening. The position switch with positive opening contacts has been tested to the professional association test standard GS-ET 15 of the German Employer Liability Insurance Association, and is thus licensed for personnel protection functions. Category 1 safety position switches have contact and actuating element in a single constructional and functional unit. Category 2 safety position switches do not have contact or separated functionally. As a result of galvanic isolation of the moving contacts, the position switch is suitable for switching various potentials.
Explosion protection to CENELEC, IEC
For use in Zone 1 and Zone 2, Zone 21 and Zone 22
Enclosures have protection class "increased safety"
Replaceable contact elements in flameproof enclosure
All attachments can be displaced through 4 x 90°
Design also possible with cable already attached
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Thermoplastic enclosure
Slow action
Max. 2 contacts
Cable
available with cable entry on side
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All the electronic sensors work on a non-contacting basis using magnets - this includes Hall and magnetoresistive sensors. The exceptions are the gear-wheel sensors which use a ferrous gear-wheel. The advantage of magnetoresistive sensors is that the same sensor, a standard small model, can be used for different operational distances. The operational distances which can be achieved depend only on the strength of the magnet used. All the models can also be delivered with non-wearing Hall sensors. Besides the various standard models, we also manufacture customised housings to your requirements.
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The QUADRO-PROX series of inductive proximity switches is available with detection ranges from 0,2 up to 18 mm. The polycarbonate or metal housings with the QUADRO® (PDF) design are ideal for heavy duty applications or where space is at a premium.
The electronics have been built to conform to industry standards. Power supply of 10 - 30V and PNP / NPN / Namur output configurations are all available.
Next to the standard products DIS also supplies many CUSTOMIZED inductive switches.
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A proximity switch is a device which causes a switching action without physical contact. SCHMERSAL proximity switches respond to targets that come within the active range of their generated sensing fields. These units are completely self-contained, and house a field generator, amplifier, and other necessary circuitry to accomplish electronic switching.
The units are all solid state and have no moving parts that can wear out. The electronic switches are not susceptible to contact contamination, contact erosion, or material transfer as are mechanical switches.
Their service life, within their specified ratings, is virtually unlimited. The switching is insensitive to vibration, and is positive (full step function) without chatter, regardles of how slowly the target approaches or recedes from the sensor
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Inductive proximity switches are designed for wear-free and non-contact detection of metal objects. For this they use a high-frequency electro-magnetic AC field that interacts with the target.
Moreover uprox+ sensors offer highest switching disntance with their unique coil concept, factor 1 and highest operational safety from the start by simple and safe mounting.
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Position switches are used wherever moving parts on machinery and plants need to be positioned, controlled and monitored.
The design details in relation to body dimensions, materials, electrical loading capacity, rated values and quality characteristics are to a great extent determined by the variety of application, from precision mechanics to heavy engineering.
Many of the position switches fulfill the requirements of the IEC 60947-5-1 product standard and can therefore also be used as position switches with safety function.
The position switches are available with snap action or slow action.
A wide variety of actuator heads are available. The majority of units are also obtainable with metal rollers.
The position switches are shown in the sequence of body sizes, starting with the smallest design.
Schmersal make both standard and AS-i Safety at Work safety modules.
Click here to see the AS-i models
Or for the standard models click below
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Our huge standard programme with its diversity of housings has the optimal solution for almost any application. The various types of clamp or the dovetail connections directly integrated into the switch mean that the switches can be fitted on almost any type of cylinder. Our range also includes pneumatic cylinder switches for T-section cylinders. All the models can be supplied with dry reed contact with variable power capacities or in the electronic version. If you wish, we can develop completely new customer-specific sensors to meet your requirements.
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Z/T and E.95 range position switches are suitable for sliding and hinged safety guards, which need to be closed to ensure the necessary operational security.
In combination with AES and/or AZR range safety monitoring modules all position switches class 1 shown in this chapter achieve Control Category 3 or 4 to EN 954-1.
Further applications for positions switches class 1 are most varied positioning duties. The variety of requirements to be found in practice can be met in detail by means of a wide range of actuating elements.
Design and mode of operation:
On the position switches class 1 the guarding device and the positive break NC contact are positively linked.
Schmersal make both standard and AS-i Safety at Work position switches with safety function.
Click here to see the AS-i models
Or for the standard models click below
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One for all: 2 sizes fit almost all pneumatic drives. Standard: seamless adjustment within profile slot, variants for all applications.
• Sensing, contactless and contacting
• Voltage 24 V DC or 230 V AC
• Temperature range -20 ... +120 °C
• CE-compliant
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Features
High-pressure resistant version up to 500 bar
High-temperature inductive version up to 230°C
Welding and magnetic-field resistant inductive sensors
Inductive and capacitive principle
Up to triple operating distance compared with standard operating distance
Model with analog output
Design from Ø 3 up to M30
Cuboid designs
Disc design
Short-form design
Plug connector
Protection class IP 67
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The outstanding feature of the Contrinex series 700 inductive proximity switch is its one-piece stainless steel housing which, at one fell swoop, manages to eliminate the most critical weakness of this type of device. Forget damaged plastic caps, forget breakdowns due to inadequate sealing; they are things of the past! These switches are also exceptional in having very long operating distances, for instance 6 mm for the size M12 embeddable version. As a further bonus, these operating distances are also achieved on non-ferrous metals, e.g. aluminum and brass. These improvements result in completely new application possibilities for traditional inductive devices, without having to forego any of their advantages. In all others ways, they are normal proximity switches with the usual data and protection functions. Embeddable and non-embeddable versions in sizes M12, M18 and M30 are available immediately.
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Pizzato Elettrica introduces in the market of switches for potentially explosive environments a range of products that can satisfy the requirements of all the users. There are different switch series available in conformity with the directive ATEX 94/9/CE in the categories M2, 2G, 2D plus the new categories 3G and 3D (zones 2 and 22) introduced with the new regulations.
The approved products include both the position switches and the safety switches with different contact blocks and actuators. To introduce these products on the market there’s a special brochure available which can be downloaded from the web-site www.pizzato.com.
Pizzato Elettrica is an established company with more than 20 years experience in the sectors of position switches and safety devices for machineries. The products are entirely planned and produced in Marostica - Italy in compliance with the standard ISO 9001 and they undergo the inspection by a third party for product conformity.
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The range includes different size devices for operating pressures from 100 to 500 bars. Their main applications are in high-pressure hydraulic systems. They feature a stainless-steel housing imperviously shrunk onto a ceramic disk at the sensing face.
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Balluff single and multiple position limit switches have proven themselves for decades under the most stringent conditions. They ensure flawless function under vibration, shock, rapid temperature changes, and in the presence of aggressive coolants/lubricants and heavy chip formation. Inductive single and multiple position limit switches are also characterized by high electromagnetic compatibility.
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There has always been an industrial demand for small and reliable proximity switches with very long operating distances. Thanks to the CONDIST® technology, developed and patented by the innovative Swiss company CONTRINEX, inductive proximity switches with quadruple operating distance have been launched onto the market. These switches guarantee all functionalities with operating temperatures of -25 °C ... +70 °C. They are manufactured according to the strictest quality standards, and present the user with a wide range of technically interesting and economically advantageous application possibilities. Largely compatible with standard proximity switches, they are particularly suitable for targets which are normally difficult to detect, such as small or narrow objects, non-ferrous metals, wires, etc.. The range includes N.O. and N.C. types, PNP or NPN executions, as cable or connector versions. Available in sizes M8 and M12, the devices are quasi embeddable, and contain all important protection functions, such as short-circuit protection, EMC and polarity-reversal protection.
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The Swiss sensor manufacturer Contrinex, specialized in long operating distance and miniature devices, now offers a large selection of the world's smallest, fully self-contained inductive and photoelectric proximity switches.
With housing diameters of just 3 mm up to M5, plus cuboid 5 x 5 x 25 mm formats, the sensors have electrical characteristics equivalent to larger types. In addition, they also contain all the usual built-in protection functions, such as short-circuit, voltage-reversal and overload protection, and feature high levels of EMC.
Despite their small dimensions, the inductive models offer operating distances of 0.6 to 1.5 mm. Mechanically robust, with stainless-steel housings and full potting, these devices are highly suitable for rugged applications.
The photoelectric models are available with housing diameters of 4 mm and M5, as diffuse and through-beam executions, and have operating distances from 10 to 250 mm.
These tiny sensors are ideally suited for applications where space is limited. They require no separate amplifiers, and are thus easier to install and considerably cheaper than equivalent fibre-optic solutions.
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BERNSTEIN inductive microsensors are used wherever tight conditions predominate and finite signal acquisition is essential. Despite their small design these sensors are equipped with a complete signal analyser and an integrated output stage.
The microsensors are available in Ø 3 mm to Ø 6.5 mm and square 5 x 5 mm to 10 x 5 mm styles. The sensors comply with the specifications in EN 60947-5-2. With an extensive standard product programme Bernstein has the microsensor that meets your process specifications.
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Design Features
- Adjustable operated PM7 Magnet
- Proven reedswitch reliablity
- Repeatablity of operation
- Shunt or direct magnet operation
- Multiple Mode of Operation
Product Comments
- Pocan Material Housing
- Normally Open
- Surface Mounted by single finxing hole
- Low Pofile Package 3.7mm (0.15
- Matching Package Operating Magnet PM7
Typical Applications
- Door Interlocks
- Hook Switches
- Security Systems
- Safety Interlocks
- Position Indication
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Limit switches
The Limit Switch range from Crouzet is characterized by:
- Wide range of metal or plastic bodies
- Large choice of actuator types (push, plunger, roller, tappets, flexible, etc.)
- Connection possible by gland, cable or connector
- High resistance to accidental shocks
- Waterproof or splash protection available
- Suitable harsh environments
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NEWS 2009
MODULAR PREWIRED SWITCHES NA-NB-NF SERIES
Always consistent with its innovation and the company quality targets, Pizzato Elettrica introduces three new prewired switches series provided with innovative and unique characteristics.
The main features of these products are:
- Separation between the switch body and the wired connector, which allows the user to change a product in the field without having to completely remove the wires.
- 14 contact blocks available: these series contact blocks are versatile and compact. In the same space of the previous versions now it’s possible to have up to 4 different contacts, provided with positive opening.
- 35 actuators available, some of these were not available in the previous series: based on chosen actuator, many products variations are available.
- Single pieces of these products can be purchased separetely: this is advantageous to distributors of electrical material for stock flexibility and final customers for spare parts or new combinations.
- Metal housing (NA-NB) and polymer housing (NF), adjustable cable output.
- 3 (NA-NB) or 2 (NF) types of integrated connector cable.
- Protection degree IP67.
The new series support the FA-FB-FF series, which are currently present in the market, proposing in this way one of the widest products range in the position switches sector.
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Position switches for high temperature
For more than 20 years Pizzato Elettrica has been producing one of the world most wide range of position switches, safety switches, microswitches, foot switches. Pizzato Elettrica products are usually used worldwide in different industrial sectors characterized by their reliability and their quality/price ratio.
Eventually the range of products in the survey sector has been growing covering very specialized sectors such as switches in conformity with ATEX directive and switches with electronic contacts.
Among the various new products 2007 Pizzato Elettrica has introduced a new series of position switches especially studied for high temperature application. These products are characterized by their long mechanical life in relation to the working temperature, that is up to 1 million operation cycles at +180°C.
A dedicated brochure on these new products is available on the website www.pizzato.com.
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Burgess position switch
Characteristics • precision switching
• long mechanical life
• screw terminals
Rating 250 VAC, 15 A
Dimensions (mm) 49 x 22 x 17.5
Actuator • plunger
• plain levers
• roller levers
Approvals UL, CSA
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Position Sensing Solutions
Bimba offers pre-tested Position Sensing Solutions for Bimba actuators. Our solutions provide a cost effective interface between the pneumatic actuators and electrical control systems. Our pre-tested solutions also eliminate costly, time-consuming design and fabrication required if switches are purchased separately and provide an aesthetically pleasing installation.
Both traditional Bimba switches as well as newer generations of Bimba switches are offered to allow for maximum flexibility to fit your application.
The switches perform the same functions as conventional limit switches. They can be used as position indicators, cycle counters, or to confirm operation.
All Bimba switches are designed to sense a magnet that is incorporated into the piston of the cylinder. Magnets are standard in Bimba MRS cylinders, but must be purchased as an option on other Bimba actuators.
A variety of outputs are offered for each switch family including PNP (transistor sourcing), NPN (transistor sinking), normally open contacts, and higher power triac.
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Comus can offer a complete range of proximity switches and sensors in different technologies.
The major range is using magnetic reed switches which can be operated by a permanent magnet. Rectangular, cylindrical and threaded housings are available in plastic as well as in metal. These can also be offered with integrated connectors.
Electronic proximity switches are also available using solid State Hall Effect technology.
A very interesting range are Hybrid Proximity Switches, combining the reed switch technology for sensing and the electronics for handling the higher load requirements.
A range of Economy Proximity Switches has been added for applications requiring low cost solutions.
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Yaskawa's Bestact dustproof and flood-tight proximity switches offer industry-compatible mounting capability with IP52-IP68 (~NEMA 2-6) enclosure ratings. These switches utilize Yaskawa's world-renowned Bestact logic and inductive rated (0.5 & 0.125HP) reed switches. General locations up to 510°F (265°C) and sensing distances up to 4.33" (110mm) are possible. They do not need a DC power supply or snubber/varistor protective devices and do not employ complicated amplifying circuitry that is needed for photo-electric/inductive proximity switches. They are ideal for corrosive, dirty, extreme temperature and gaseous Class I, Division 2 hazardous location environments where failure is not tolerated and reduced maintenance costs are of the utmost importance. Two-line wiring and latching capability are other features that are offered.
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Non-contact magnetic sensor proximity switch produces a digital output. The output produced by Hall-Effect Proximity Switch sensor switches between logic low (operate point) and logic high (release point) with presence and absence of a magnet as a target. The difference between the magnetic operate and release points is called the hysteresis of the device. The built-in hysteresis circuitry allows clean switching of the output even in the presence of external mechanical vibration and electrical noise.
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PSSM25D/30
Supply Voltage: 10 - 15Vdc.
Quiescent Current: 25mA Max.
Sensing Distance: 8mm Typical
Output Type: 5V Logic Gate (Pull Down)
Case Material: Aluminium
See Data Sheet for further information
PSSM25S/30
Supply Voltage: 4.5 - 20Vdc
Sensing Distance: 8mm Min.
Output Type: Open Collector
Case Material: Aluminium
See Data Sheet for further information
PTS25D/30
Supply Voltage: 10 - 15Vdc.
Quiescent Current: 25mA Max
Sensing Distance: 8mm Typical
Output Type: 5V Logic gate (Pull down)
Case Material: Brass-Nickel Plated
See Data Sheet for further information
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Thanks to their reliability and to their facility of use, the inductive proximity detectors are today sensors of choice for many applications in the fields of automation and robotics. They can detect metal target very and are highly insensitive with the difficult industrial environments containing dirtiness, moisture, dust and oil. Available in many faces of case and various executions, our inductive proximity detectors of quality are the result of permanent technological innovations, offering new solutions. In addition to miniature detectors allowing a more close mechanical integration, we propose a whole range of sensors at analogical exit.
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Locking bands for microcylinders
Brackets for cylinders
M8 connector
Series Q200
Series Q190
Series Q100
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