The different expansions force the flat strip to bend one way if heated, and in the opposite. Its unique design allows for sensing of the fluid temperature without the need of a probe. Bimetal refers to an object that is composed of two separate metals joined together. Here you can find the operating instructions of our temperature switches for download. Thermostats bimetal thermostats, switch thermostats. The robust round metal enclosure accommodates a resilient preloading disk, a bimetal disk and a silver contact. A switch lever is actuated by closing the closure lid of the machine. Bimetal means two different metals joined together. A polypropylene boot filled with epoxy protects the bimetal disc, contacts, and terminals from water, salt, dust, etc.
In operation, the bimetal element acts directly on a snap action electrical switch that insures a positive, instantaneous electrical contact under all. Thermal cutoutsbimetal thermostats archives cantherm. We do, however, have experience in joining many other metals as well. We would be happy to discuss the pros and cons of each method for your application. 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. Ksd9700 datasheet bimetal temperature control switch thermostat. 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. They are often used in electric kettles as a temperature switch. Clad metal, thermostatic bimetal, nickel and nickel alloys.
Depending on the maximum switching current they can be delivered in 0. We use a flat plate bimetal for the h series to achieve contact configuration. 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. Sealed bimetal thermostat switch 431 series senasys. Us4995650a bimetal operated lid switch and lock for. Epoxy sealed bimetal thermostat switch 431 series senasys. In general, the more demanding your environment, the more likely you are to be considering a selfcontained bimetal thermal switch. Testco stocks the 36t thermal switch in open on rise and close on rise. Areas of application include temperature monitoring, control, and signaling in cooling and heating.
It is used for mobile or automotive applications where a switch and indicator output are both required. 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. The model tfs5 bimetal temperature switch is built with a normally closed contact. 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. Thermal switchlow temperature bimetal thermal switch. Product info download pdf this thermostat operates as a thermal cutout. Anfield sensors offers a variety of bimetal temperature switches. 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. A bimetal switch changes its switching status relative to the temperature. Designing circuits should be as easy as using microsoft office. Sensata electrical protection catalog gvz components.
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. 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. This double snap action makes these switches virtually immune to shock and vibration. Bimetal thermometer with switch contacts tgs55 wika.
Bimetal temperature switch concord, ontario, canada. Commercial thermostats ps 0090532en third draft 21sep09. Manual reset is available as a limit switch in spst construction only. 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. 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. Snapaction bimetal disc bimetal switch thermostat for. Ksd301g series bimetal thermal switch thermostat is in wide use in a great variety of small home appliances. Ksd9700 product is a kind of thermostat which adopt the bimetal head as the temperature sensing element. Our s2taf is a bimetal temperature switch with brass body and an internal sensing cavity. When the battery is overheated, the thermal switch would action quickly and cut the circuit off.
Thermostatic bimetals are one of the most widely applied families of clad metals. This switch can open or close a circuit and in so doing start or stop a process e. Contact version the model tfs5 bimetal temperature switch is built with a normally closed contact. It is focused on the low temperature range and small temeprature differential. The digital switch can be used as a standalone board mounted to the control panel, or as a completed enclosure as shown. See below for a list of applications that have gone the way of bimetal thermal for a variety of reasons. Ip67 nem montering brydeevne op til 2,5 kva kort beskrivelse bimetaltemperaturswitchen er universel anvendelig. 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. Get bimetal switch at best price with product specifications. If the temperature is sufficient, the bimetal bends, thereby actuating a snapaction switch.
These thermal cutouts operate by means of a thermally sensitive bimetal snapelement which switches a double electrical contact. Ksd301g series bimetal thermal switch thermostat is a kind of miniature hermetically sealed bimetal thermostat12 disc. Atlas specializes in bonding aluminum, stainless steel, titanium, and copper. 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. The bimetal switch is selfresetting and is also used to prevent motor windings from overheating motor. 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. We routinely bond and manufacture custom, helium leaktested bimetallic assemblies. Tfs5, bimetal temperature switch, for switching voltages up to 250 v, tv 35. Instead of being a mix of two or more metals, like alloys, bimetallic objects are made of layers of different metals. Ei series bimetal thermometers ashcroft pdf catalogs. 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. It can be mounted into the battery pack and sense the temperature precisely. 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.
On royal vendors freezers with serial numbers 201518ra00054 and before, the bimetal switch in the refrigeration assembly was placed on the 14. This property is used to make a switch which opens with a temperature change. A normally closed contact nc closed in the normal state opens a circuit and shuts down the machinery. Epoxy sealed bimetal thermostat 431 series ideal for extreme environments. Bimetal temperature switches concord, ontario, canada. This is the method employed on some controllers such as the coldstart fuel valves found on. Designed by senasys, the digital switch is a cost effective, flexible switching solution that allows for tight differentials and tolerances. A bimetallic strip is used to convert a temperature change into mechanical displacement.
Pdf in this study, the twolayer bimetal disks used for thermostatic control and. Contacts open when surface or ambient temperatures increase to the operating set point of the calibrated metal disc. The bimetal temperature switch is universally applicable. Bimetal thermostat, temperature switch, thermal switch, temperature protector. View and download ctc union 43007 user manual online. 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. Optimized placement of bimetal switch royal vendors. This model is a direct mount thermostat switch and comes in 12.
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. Fstb ksd301g bimetal thermal switch thermostat buy thermal. This closes a switch in series with a bimetal and the basket drive motor. Rs310pxg w, rs310pxg n, gy395lxg q, gy395lxg z, gy395lxg b, gy396lxg q, gy396lxg z, gy396lxg b, ygy395lxg q, ygy395lxg z, ygy396lxg q, ygy396lxg b. Instead of being a mixture of two or more metals, like alloys, bimetallic objects consist of layers of different metals. Wika your partner for pressure, temperature and level measurement.
A bimetal temperature switch with grounded body switching and built in thermistor output. Bimetal simple english wikipedia, the free encyclopedia. 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. Model tt is a simple, reliable low cost immersion temperature switch that uses a bimetal sensing element. Apr 25, 2016 ksd9700 datasheet bimetal temperature control switch thermostat, ksd9700 datasheet, ksd9700 pdf, ksd9700 pinout, equivalent, ksd9700 data, ksd9700 circuit. A temperaturesensitive bimetal disc, electrically and thermally isolated from the switch, is used to actuate the normallyclosed contacts. 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.
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. Fstb ksd301g bimetal thermal switch thermostat buy. 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. Snap disc thermostats have many practical applications. Trimetal and tetrametal refer to objects composed of three and four separate metals respectively. Also digital switching was obtained for transducer used for thermostatic control and overtemperature protection. Ts05 serial thermal switch for battery pack has the smallest size and accurate temperature sensitivity. These highpower bimetal operated temperature switches are available either with normally closed nc or normally open no contact configuration. The bimetal head is in free state and the contacts are closed when the electrical appliance is working in normal condition. The little device that makes this possible is the bimetal, or defrost, thermostat. It is of singlepole singlethrow structure and works under resistive load. 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. The switch mechanism is actuated by the klixon snapaction, bimetal disc which may be.
In its basic form, thermostatic bimetal is comprised of two metals with different coefficients of thermal expansion cte that are. 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. 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. For a disktype bimetal thermostat, 230c is considered to be upper limit because the disk cannot withstand the high temperature stress. The switch opens or closes its contact upon rising temperature and resets automatically to the original switching state when the temperature has dropped. After cooling down below the reset switching temperature, the contact returns to the original state, so that the monitored equipment can again work normally. The bimetal disc carries no current, and this eliminates the possibility of arcing. We keep in researching and developing hightech and innovative bimetal thermostat, thermal protector, thermal switch, thermal cutout, and capillary thermostat with reliable quality. Temperature range ei dimensions dial connection size location 2. Description epoxy sealed bimetal thermostat 431 series ideal for extreme environments. We use a flat plate bimetal for the h series to achieve. The entire switch is enclosed in a ceramic housing. Bimetal sensors can also serve as timedelay devices. Bimetal thermal switch 0f 650f cpi surface temp switch.