This double snap action makes these switches virtually immune to shock and vibration. These thermal cutouts operate by means of a thermally sensitive bimetal snapelement which switches a double electrical contact. Manual reset is available as a limit switch in spst construction only. Switch contacts electrical alarm contacts make or break circuits dependent upon the pointer position of. Here you can find the operating instructions of our temperature switches for download. Snapaction bimetal disc bimetal switch thermostat for. Atlas specializes in bonding aluminum, stainless steel, titanium, and copper. Wika part of your business solutions for pressure, temperature, force and level measurement, flow measurement, calibration and sf 6 gas solutions from wika are an integral component of our customers business processes this is why we consider ourselves to be not just suppliers of measurement components but rather more a competent partner that offers comprehensive solutions in close co. Rs310pxg w, rs310pxg n, gy395lxg q, gy395lxg z, gy395lxg b, gy396lxg q, gy396lxg z, gy396lxg b, ygy395lxg q, ygy395lxg z, ygy396lxg q, ygy396lxg b. The strip consists of two strips of different metals which expand at different rates as they are heated, usually steel and copper, or in some cases steel and brass. After cooling down below the reset switching temperature, the contact returns to the original state, so that the monitored equipment can again work normally. Thermal cutoutsbimetal thermostats archives cantherm. It is used for mobile or automotive applications where a switch and indicator output are both required. The entire switch is enclosed in a ceramic housing.
The robust round metal enclosure accommodates a resilient preloading disk, a bimetal disk and a silver contact. This model is a direct mount thermostat switch and comes in 12. Epoxy sealed bimetal thermostat switch 431 series senasys. For a disktype bimetal thermostat, 230c is considered to be upper limit because the disk cannot withstand the high temperature stress. This closes a switch in series with a bimetal and the basket drive motor. A bimetal switch changes its switching status relative to the temperature. The bimetal head is in free state and the contacts are closed when the electrical appliance is working in normal condition. Anfield sensors offers a variety of bimetal temperature switches. Epoxy sealed bimetal thermostat 431 series ideal for extreme environments. Here you can find data sheets of our temperature switches for download. A normally closed contact nc closed in the normal state opens a circuit and shuts down the machinery. We use a flat plate bimetal for the h series to achieve contact configuration.
The model tfs5 bimetal temperature switch is built with a normally closed contact. A bimetallic strip is used to convert a temperature change into mechanical displacement. A polypropylene boot filled with epoxy protects the bimetal disc, contacts, and terminals from water, salt, dust, etc. Snap disc thermostats have many practical applications. The usual technique is to pass current through a heater coil that eventually after 10 seconds or so warms the bimetal elements enough to actuate. Get bimetal switch at best price with product specifications. The bimetal temperature switch is universally applicable. It is of singlepole singlethrow structure and works under resistive load. It is focused on the low temperature range and small temeprature differential. Bimetal thermal switch 0f 650f cpi surface temp switch. When the disc snaps, it either completes or interrupts a circuit. Bimetal means two different metals joined together. The compact switch system is covered by means of a plate which also carries a silver contact and is isolated from the enclosure by means of an isolating washer. Instead of being a mixture of two or more metals, like alloys, bimetallic objects consist of layers of different metals.
We do, however, have experience in joining many other metals as well. Thermostatic bimetals are one of the most widely applied families of clad metals. Clad metal, thermostatic bimetal, nickel and nickel alloys. Bimetal thermostat, temperature switch, thermal switch, temperature protector. Development of a diesel cold performance evaluation method by use of design of experiment it is automatically shut down the electrical power to detect fuel temperature by bimetal thermo switch. Our s2taf is a bimetal temperature switch with brass body and an internal sensing cavity. We would be happy to discuss the pros and cons of each method for your application. Fstb ksd301g bimetal thermal switch thermostat buy. Model tt is a simple, reliable low cost immersion temperature switch that uses a bimetal sensing element. When the battery is overheated, the thermal switch would action quickly and cut the circuit off. Contact version the model tfs5 bimetal temperature switch is built with a normally closed contact.
As formed parts, spiral coils, or snap acting discs, this movement can be used to make and break electrical circuits, indicate or compensate for temperature changes, release springs, open. Bimetal temperature switches concord, ontario, canada. A bimetal temperature switch with grounded body switching and built in thermistor output. R53 series bimetal cutouts a versatile and inexpensive solution for thermal control in a wide variety of applications related articles sensor data fusion more than just sensor integration sensor fusion is more than the sum of the individual parts. Switch type bimetal protection terminals ip00, body ip65 temperature range 77f to 293f 25c to 145c temperature differential 10f 5c temperature exposure limit 300f 149c housing material brass optional stainless steel maximum overpressure 350 psi 24. Data sheet ei series bimetal thermometers ei series selection table case size ei series dual scale ranges stem lengths available s code length code inches r 21. Sealed bimetal thermostat switch 431 series senasys. The switch and lid lock assembly features a dual purpose actuator, special seal elements for the actuator shaft, a combination torsion and compression spring to put pressure on the seal elements and resiliently position the locking lever, actuator shaft bearings that slide in place, bendable tabs for prepositioning the bimetal to correct for. The different expansions force the flat strip to bend one way if heated, and in the opposite direction if cooled below its initial temperature. Description epoxy sealed bimetal thermostat 431 series ideal for extreme environments.
These highpower bimetal operated temperature switches are available either with normally closed nc or normally open no contact configuration. The bimetal switch is selfresetting and is also used to prevent motor windings from overheating motor. Ksd9700 datasheet bimetal temperature control switch thermostat. Sensata electrical protection catalog gvz components. If the temperature is sufficient, the bimetal bends, thereby actuating a snapaction switch. The top countries of suppliers are china, taiwan, china, and india, from which the percentage of bimetal switch supply is 98%, 1%, and 1% respectively. This bulletin explains the procedure for optimizing the location of the switch. Fstb ksd301g bimetal thermal switch thermostat buy thermal. A wide variety of bimetal switch options are available to you, there are 1,444 suppliers who sells bimetal switch on, mainly located in asia. A thermally sensitive bimetal snapelement with double contacts either opens or closes an electrical circuit by switching at a preset response temperature. Also digital switching was obtained for transducer used for thermostatic control and overtemperature protection. Its unique design allows for sensing of the fluid temperature without the need of a probe.
Snap disc, or snap switch thermostats are bimetal mechanical thermostats that function via the thermal expansion and contraction of a bimetal disc that snaps from a convex to a concave shape at a set temperature. Wherever the process temperature has to be indicated onsite and, at the same time, circuits need to be switched, the bimetal thermometer with switch contacts finds its use. Product info download pdf this thermostat operates as a thermal cutout. The bimetal disc carries no current, and this eliminates the possibility of arcing. Ei series bimetal thermometers ashcroft pdf catalogs. This is the method employed on some controllers such as the coldstart fuel valves found on. Bimetal thermometer with switch contacts tgs55 wika. Ksd301g series bimetal thermal switch thermostat is a kind of miniature hermetically sealed bimetal thermostat12 disc. We routinely bond and manufacture custom, helium leaktested bimetallic assemblies. A switch lever is actuated by closing the closure lid of the machine. Temperature range ei dimensions dial connection size location 2. They are often used in electric kettles as a temperature switch.
Pdf in this study, the twolayer bimetal disks used for thermostatic control and. The digital switch can be used as a standalone board mounted to the control panel, or as a completed enclosure as shown. Bimetal refers to an object that is composed of two separate metals joined together. Designed by senasys, the digital switch is a cost effective, flexible switching solution that allows for tight differentials and tolerances. The little device that makes this possible is the bimetal, or defrost, thermostat.
Trimetal and tetrametal refer to objects composed of three and four separate metals respectively. View and download ctc union 43007 user manual online. See below for a list of applications that have gone the way of bimetal thermal for a variety of reasons. It is these unique properties that make thermostatic bimetal useful in any application where it is desirable to sense and react as a function of temperature. Designing circuits should be as easy as using microsoft office. Thermal switch, thermostat switch, bimetal thermostat, thermal motor protector, circuit protection device, temperature limit switch inquiry form brb2d series thermal protector is mainly designed for the electricity protection system of singlephase ac motor 50hz, 220v in case of some abnormal working conditions like overload or stalling. Bimetal temperature switch for industrial applications. In operation, the bimetal element acts directly on a snap action electrical switch that insures a positive, instantaneous electrical contact under all. Thermal switchlow temperature bimetal thermal switch. The bimetal thermoswitch consists of an electrically insulating, flat carrier 1, at least two electric terminals 3, 4 which are secured to the carrier 1 and are respectively connected to a fixed contact 10, which is mounted on the carrier, and to a contact spring 8, which is secured at one end to the carrier 1 and at its other end carries a movable contact element 10, which. A temperaturesensitive bimetal disc, electrically and thermally isolated from the switch, is used to actuate the normallyclosed contacts. It is called a bimetal thermostat because at its heart is a strip made of two metals with different expansion rates, which when heated begins to curve.
Apr 25, 2016 ksd9700 datasheet bimetal temperature control switch thermostat, ksd9700 datasheet, ksd9700 pdf, ksd9700 pinout, equivalent, ksd9700 data, ksd9700 circuit. Ksd9700 product is a kind of thermostat which adopt the bimetal head as the temperature sensing element. Instead of being a mix of two or more metals, like alloys, bimetallic objects are made of layers of different metals. Us4995650a bimetal operated lid switch and lock for. In general, the more demanding your environment, the more likely you are to be considering a selfcontained bimetal thermal switch.
Areas of application include temperature monitoring, control, and signaling in cooling and heating. Commercial thermostats ps 0090532en third draft 21sep09. The switch opens or closes its contact upon rising temperature and resets automatically to the original switching state when the temperature has dropped. Ip67 nem montering brydeevne op til 2,5 kva kort beskrivelse bimetaltemperaturswitchen er universel anvendelig. Bimetal simple english wikipedia, the free encyclopedia. Wika your partner for pressure, temperature and level measurement.
On royal vendors freezers with serial numbers 201518ra00054 and before, the bimetal switch in the refrigeration assembly was placed on the 14. The bimetal thermoswitch consists of an electrically insulating, flat carrier 1, at least two electric terminals 3, 4, which are secured to the carrier 1 and are respectively connected to a fixed contact 10, which is mounted on the carrier, and to a contact spring 8, which is secured at one end to the carrier 1 and at its other end carries a movable contact element 9, which. We keep in researching and developing hightech and innovative bimetal thermostat, thermal protector, thermal switch, thermal cutout, and capillary thermostat with reliable quality. Based on the principle of bimetal heat expansion and cold contraction, the thermal switch can control the temperature of application under a very small range.
Testco stocks the 36t thermal switch in open on rise and close on rise. Depending on the maximum switching current they can be delivered in 0. The switch mechanism is actuated by the klixon snapaction, bimetal disc which may be. Tfs5, bimetal temperature switch, for switching voltages up to 250 v, tv 35. Wika part of your business solutions for pressure, temperature, force and level measurement, flow measurement, calibration and sf 6 gas solutions from wika are an integral component of our customers business processes.
It can be mounted into the battery pack and sense the temperature precisely. Bimetal temperature switch concord, ontario, canada. Bimetal sensors can also serve as timedelay devices. In its basic form, thermostatic bimetal is comprised of two metals with different coefficients of thermal expansion cte that are. Ksd301g series bimetal thermal switch thermostat is in wide use in a great variety of small home appliances. This switch can open or close a circuit and in so doing start or stop a process e. An interlock device for preventing access to a moving part of an appliance, such as the spin drying basket of a washing machine, until the basket has coasted to a stop during a spin drying cycle. We use a flat plate bimetal for the h series to achieve. Optimized placement of bimetal switch royal vendors. Ad173 spdt spst underclamp mount surface temperature switch cpis snapstat line of bimetallic thermal switches have a bimetal snap disc that actuates a miniature microswitch. This property is used to make a switch which opens with a temperature change. Ts05 serial thermal switch for battery pack has the smallest size and accurate temperature sensitivity. Jan 10, 2018 best bimetal thermostats factory in china, we can help you solve all the temperature control protection components, help you design,free samples. Thermostats bimetal thermostats, switch thermostats.
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