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Hazardous environments demand Honeywell. When conditions are hazardous and performance is critical, Honeywell Sensing and Control delivers exceptional performance.
-Designed specifically for dangerous indoor or outdoor locations
-Superior reliability and repeatability
-Explosion-proof design contains flame path to contain and cool escaping hot gases
-UL, CSA, ATEX, and IEC Ex certifications
-O-ring seals render switches weather-proof, water-tight, and dust-tight
Honeywell S&C hazardous location switches are found in applications as diverse as:
-grain elevators
-offshore drilling
-petrochemical and waste treatment plants
-paint booths
-hazardous waste-handling facilities
-pipeline valves
-maintenance equipment
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Besides the metal-enclosed precision switch of the RET series, BARTEC also offers a series of limit switches with plastic bodies. The enclosure is made of shock impact resistant proof plastic providing an IP 67 protection class according to IEC 60529. Due to its format several limit switches can be mounted in tandem formation requiring very little space. This allows a multiple triggering of switching operations. The connection cable is equipped with a strain relief device, prewired and safely cast into the enclosure by means of epoxy resin. We supply this robust limit switch with a standard length of 3 m; special lengths are available on request.
The integrated switching element changes over via NC contact with positive break operation. Operator protection corresponds the the GS-ET 15 requirements. Its high vibration resistance and long life are the result of a most extensive laboratory research. The certification for hazardous areas and the high protection class granted thanks to its structural characteristics are the ideal prerequisites for its use in almost all fields of automation, mechanical and high-tec engineering.
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Miniature ends of the road: miniature switches of position to lever, miniature detectors of end of the road to push rod,...
Ends of the road standards: standard switches of position to lever, detectors of standard end of the road to lever, sensors of end of the road stantards to push rod,...
Ends of the road prewired: miniature prewired switches of position, tight prewired detectors of end of the road, prewired sensors of end of the road with lever
Ends of the road of safety: switches of safety with n-key rollover with key
Pedals: switches with metal pedals, plastic pedal switches
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Rotary control switches with 300mm rods from 3 up to 5 positions. Control switches with
rotary gear from 12 up to 200 rpm with 4 or 6 micro switches.
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Honeywell MICRO SWITCH™ Limit Switches
Limitless leadership. Available with a variety of actuators, electrical specifications, terminations, circuitries and sealing ratings, Honeywell Sensing and Control's (S&C) limit switches offer superior flexibility and performance. These precision snap-action switches — sealed in rugged housings — are used to detect presence or absence in areas where physical contact is allowed.
And Honeywell S&C delivers all the benefits your applications demand:
-Reliability, repeatability, accuracy
-Impressive breadth of product offerings
-Tested-tough, for industrial machinery
-Supreme performance, through superior application understanding
-Withstanding shock, vibration, washdowns and outdoor environments
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- Dimensions to EN 50047 standards
- Dimensions compatible to EN 50047 standards
- Dimensions to EN 50041 standards
- Rope-pull lever versions for normal stopping
- Rope-pull level safety versions
- Direct opening operation of NC contacts
- Extensive range of operating heads
- Versions complete with interchangeable
and rotatable heads
- M20 cable entry; PG13.5 on request.
METAL AND PLASTIC LIMIT SWITCHES
- Top push rod plunger
- Top roller push plunger
- Roller centre push lever
- Roller side push lever
- Roller lever plunger
- Adjustable roller lever
- Ceramic rod lever
- Adjustable rod lever
- Wobble stick, omni directional
- Hinge operated
- Slotted lever
- Key operated.
- Bi-directional.
FOOT SWITCHES
- Open or protected versions
- IP54 or IP65 degree of protection
- M20 cable entry; PG13.5 on request.
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Machine-operated limit switches
for the control and movement limitation
for processing and manufacturing machines
for lifts
in ships
for transportation equipment
as trigger switches in safety and alarm systems
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Yaskawa's Bestact dustproof and flood-tight limit switches offer industry compatible mounting capability with IP52-IP68 (~NEMA 2-6) enclosure ratings. These switches utilize Yaskawa's world-renowned Bestact™ inductive rated (360VA, 0.5HP) reed switches. They do not need snubber, varistor, or diode protective devices for contact protection as other electromechanical and solid state switch products require. They are ideal for corrosive, dirty, extreme temperature, and gaseous Class I, Division 2 hazardous environments where reliability and reduced maintenance costs are of the utmost importance. Multi-pole options, two-line wiring, and other features are offered.
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The switching system for C2 and Ti2
l Small hysteresis on the snap-action
system
l Large variety of contact functions
l Optimized size utilising proven terminal
technology
l Snap-action type prevents undefined
status even with very slow actuation
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Precision Multiple Limit Switches
The highly precise and reliable switches are used in the most diverse machinery and industrial plant. Suitable for use under the most severe production conditions, due to their compact design they are predestined for positioning and control use in machine building and plant construction. Proven special designs are available for specific applications. An exceptional service life is ensured through their high quality standard.
Features
Minimum space requirements due to compact design
Low cost connection through the use of a common wiring cable
Cross connection of switch elements without additional terminal boxes
Easy access to all switch stations for test, adjusting and service purposes
Simple fitting
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Vane-operated Limit Switches
Vane-operated Limit Switches can be used in most applications where conventional lever-operated switches are installed. These limit switches are actuated by the passage of a steel vane or rod through a recessed slot in the switch. These limit switches are especially suited to tough, sever duty applications. (CR115A, CR115AS Series)
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Limit switches, including safety interlock versions, use Bifurcated contacts, high- speed actuators and changeable turret positions. All carry UL, CSA and CE approvals.
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Warner Electric has many years of experience in applying sensors and switches in motion control applications. Our broad range of innovative and technologically advanced products offers our customers the exact solution to satisfy their sensing applications needs.
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general data repeatability < 0,001 mm
mech. pre-run / overrun - / 1,5 mm approx.
electrical data DC voltage max. 15 VDC
switch. current DC max. 2 mA
AC voltage max. 24 VAC
switch. current AC max. 50 mA
output circuit break function (NC) mechanical
mechanical data activating pin zirconium oxide ZrO2
housing material brass nickel plated
dimension 8 mm
ambient conditions operating temperature -20 ... +75 °C
protection class IP 50
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Features:
* Complies with M8805 sealing.
* One-piece stainless steel housing.
* Sealed at plunger with "O" rings.
* Sealed at base with a glass seal.
* EMI reduction construction.
* Choice of Pin or Roller Plunger.
* Lighter in weight than others.
* Choice of axial or radial leads.
P6 series switches are sealed against immersion and corrosive atmospheres. These switches are designed for rugged duty both mechanically and electrically. A one-piece stainless steel housing, sealed at the plunger with ring seals and at the base with a glass-to-metal header provides true environment-free sealing to comply with M8805/39, M8805/40, M8805/43 and M8805/100. Most case parts are grounded for EMI reduction.
The P6 series is available with roller plunger styles for cam or slide actuation and pin plunger for in-line actuation. Other designs available on special order.
P6 series features the OTTO B2, B3 or B5 series snap-action basic switch. High contact pressure and unique contact design provides low contact resistance for low level switching as well as full rated service.
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Trak-Lok® - 449 Series
Limit Switch and Position Monitor
The Trak-Lok 449 Series limit switch and position monitor provides point-to-point limit switch signaling combined with continuous on-site visual monitoring in one compact UL/CSA rated NEMA enclosure.
It is ideally suited for use with the Tork-Mate® Series pneumatic actuator for operation of Posi-flate® inflatable seated butterfly valves.
The Trak-Lok 449 Series utilizes high grade components throughout for dependable and economical valve monitoring in an industrial process environment, providing improved information flow, safety management and productivity.
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Yaskawa's BestactTM dustproof and flood-tight limit switches offer industry compatible mounting capability with IP52-IP68 (~NEMA 2-6) enclosure ratings. These switches utilize Yaskawa's world-renowned Bestact™ inductive rated (360VA, 0.5HP) reed switches. They do not need snubber, varistor, or diode protective devices for contact protection as other electromechanical and solid state switch products require. They are ideal for corrosive, dirty, extreme temperature, and gaseous Class I, Division 2 hazardous environments where reliability and reduced maintenance costs are of the utmost importance. Multi-pole options, two-line wiring, and other features are offered.
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The SIM08 connection box provides an optimal solution for connecting all type of cylinder end-stroke switches, with the following advantages:
Security. Front and rear signals are usually joined in two series. Yet, this solution doesn’t provide any protection to an eventual double signal or connection error and make it difficult the identification of a broken switch. The SIM08 box is equipped with an alarm to any double signal and a led light for each switch permits a fast detection of a non-working switch even if the signal is in series.
Versatility. The box can be fixed directly on the mold. From the box to the press machine there’s a unique connector (IP67 water resistance) with a 5 mt. cable. On the other side of the cable the end user can connect any type of connector - as per his Company standards - with min. 6 pins.
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Planetary gear cam limit switches
Series 51
Standard switches
51 series geared cam limit switches are universal mechanical switching devices that have been designed for use in conjunction with cam discs based on a specific angle of rotation for indication of a large number of shaft revolutions. These cam discs serve to operate mechanical contacts. Geared cam limit switches are used wherever specific ranges of travel cannot be directly limited by switchgears but only indirectly via measurements of the angle of rotation. A classic example of such an application is limitation of the hook travel of crane hoisting gear.
Especially where there is a danger to persons and the use of positive opening switching contacts is required according to VDE 0660 T200, EN 60947 T5-1, IEC 947-5-1, the use of geared cam limit switches is the most efficient alternative.
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The Series 1995A PLS was designed for use in rotary applications. It incorporates many features for safe, efficient operation. The completely self-contained unit can operate up to 30 independent outputs (six standard) based on the rotary position of the resolver. It offers an on-line "fault check" that provide an automatic, in process mechanism to verify that all major programmable limit switch functions are operating properly. The "fault check" output can be energized by activating the fault-check enable input. The output is a mechanical relay that is energized during normal operation, having 1 N.O. and 1 N.C. contact. Can be used with our Series 1986 Resolver Assembly.
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Features:
» Ideal for use in high lift safety applications.
» 1 to 10 Degree Sensing Range
» Fast Installation via Infrared Light Source Programming
» Factory Programmed Trip Points, Damping and Delays
» OEM Reprogramming of Trip Point Angles
» Auto Zero on Power-up option, Eliminating need for Mechanical Zeroing
» Hermetic Sealing from Moisture and Dirt for years of Continuous Operation
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The Series 2000 Rotary Limit Switch is primarily used for machine tools, handling devices, and rotary operators where motion is expressed in shaft rotation. The primary purpose of the switch is to control the intermediate or end limits of a linear or rotary motion. The switch is often used as a safety device to protect against accidental damage to equipment.
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Geared limit switches
Geared limit switched are combinations of appliances consisting of an input shaft, gear reducer, signal transmitter and limit or safety switches. If desired, encoders, resolvers, power interfaces or potentiometers can also be integrated.
We differentiate between three types:
- FEL, FRL, FDL, etc. are geared limit switches in 90 mm flanged versions.
- KW are assemblies for installation in a housing, in response to the customer's wishes.
- KWG are geared limit switches in square or rectangular housing formats.
- MR200 are geared limit switch solutions for special applications.
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The Series 1980R combines a resolver based signal off of the existing camshaft. Many press operations are now being fitted with automation equipment that requires limit switch outputs. While most press control outputs remain unchanged from die to die, the automation outputs frequently require adjustment. The Series 1980R Cam/Resolver package provides the safety and reliability of mechanical cams for press control circuits. The industrial grade resolver supplies the input to a programmable limit switch that provides the automation other frequently changed outputs.
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Safety Limit Switches - Type LSMM
Heavy Duty Die Cast Metal Bodies Positive opening NC safety contacts to IEC 945-5-1 Unique 3 pole positively operated contacts Choice of 7 actuator heads Linear Rotary High Mechanical Life 5,000,000 cycles Simple two-screw mounting Side or End cable exit Enclosure Protected to IP67 - wash down suitable Wide operating temperature -25C to 80C Contact Blocks: 2NC 1NO Slow break 1NC 1NO Snap Action
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Limit switches are necessary for the independent delimitation of movements at cranes, lifting witnesses and similar transporting equipments. A further application results for the execution of monitoring and tasks of bolting device. The rules for the prevention of accidents require that with powered lifting gears the upward motion must be limited by a limit switch. It must still permit the downward movement after its responding. With corridor-served gantry cranes with stationary control stand limit switches are prescribed for the crane and crab traversal. The limit switches are implemented with transmission, spindle or lever drive and can switch their full achievement up to 600mal per hour.
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Limit switches
Many on/off applications require an indication for closed and/or open position.
SOMAS offers a wide range of alternative solutions including micro-switches as well as proximity switches.
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Geared Rotary Limit Switches
Geared Rotary Limit Switches are worm and gear-reduction limit switches that provide limit control on rotating-drive equipment. (CR115E Series)
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Worm gear cam limit switches
Series HGE
Standard switches
HGE series geared limit switches are universal mechanical switching devices for industrial applications.
They consist of a reduction gear and one or two contact spaces containing the switching contacts and the co-ordinated cam discs.
By the reduction gear a number of revolutions, which are transmitted to the input shaft of the geared limit switch, are reduced to an angle of rotation at the cam disc of max. 320° (with 40° cam discs).
Then the adjustable cam discs actuate the mechanical switching contacts.
By utilisation of mechanical switching contacts with forced separation to VDE 0660 part 200, limit switches are preferably used in the hoisting technology.
For that purpose the entire mechanical construction from the input shaft up to the contact bridge is positively driven. The only exception are the cam discs "V", which are fitted when particularly required by the customer, and the block adjustment.
Construction
* In relation to the reduction, the gearbox is designed either as worm gear or worm spur gear.
* All gear parts are made of metal and are lifetime-lubricated with high-quality gear lubrication Spectron F00.
* All housing parts consist of seawater-proof aluminium.
* The input shaft is made of stainless steel.
* Input shaft and switching shaft are ball bearinged.
* In relation to the number of contacts, the contacts are located in one or two switching spaces.
* With one switching space only, right-side or left-side arrangement to the input shaft can be selected optionally.
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Limit switches
