Advanced manufacturing processes for cam switch components under. Bimetals form the basis of the wika temperature switches model tfs35. The bimetal temperature switch is universally applicable. Processed in strip form, they are combinations of metals that are selected and joined to best take advantage of the bimetal effect movement caused by their different coefficients of expansion, as they respond to temperature changes. Small size, no wire attached and easy for mounting or. S6taf s8taf series bimetal temperature switch the s6taf and s8taf is designed with high ingress protection, enabling it to be suitable for a variety of harsh environmental conditions. Its unique design allows for sensing of the fluid temperature without the need of a probe. The different expansions force the flat strip to bend one way if heated, and in the opposite. Wb24t10096 switch limit bimetal ge appliances parts. They are often used in electric kettles as a temperature switch. The resilient preloading disk ensures excellent performance. 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. Bimetal switch china temperature control switch miniature temperature control switch adjustable thermostat 17am ksd9700 ksd301 tb02 thermostat thermal control thermal protector thermal switch mini temperature control switch temperature switches thermal protection switch overload protector thermal cutoff switch st22. Rotating the dial clockwise increases the modulatedcycle power delivered to the load.
Bimetal strips are used in miniature circuit breakers to protect circuits from excess current. Thermostat switches bimetal, fluid filled, or digital senasys. Cadet t410b, thermostats bimetal, line voltage, heaters. A thermally sensitive bimetal snapelement with single contacts either opens or closes an electrical circuit by switching at a preset response temperature. 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. Thermal switchthermal switchbimetal thermal switchpcb. The reset switching temperature is typically 515 k below the switching temperature.
The contacts open when the surface or ambient temperatures increase to the operating snap point of the calibrated disc. Reset follows automatically after a considerable drop in temperature contact configuration. Bimetal switch a protective device to the appliance. This property is used to make a switch which opens with a temperature change. Also digital switching was obtained for transducer used for thermostatic control and overtemperature protection. The s2taf is a bimetal temperature switch featuring an internal sensing cavity that allows for sensing of the fluid temperature without the need of a probe. There are three basic types of thermostat switch actions. Thermal fuse, bimetal switch overheating, auto reset. Mounting options 12 auto reset spst break on rise or fall 8. Stelpro design inc swt1f, thermostats bimetal, line. Its fields of application include, for instance, temperature monitoring, control and signaling in. Insert element tube through bracket, straighten controller and fasten by. For help with t410bw stat bimetal dp, 22a, wht box from cadet click add to cart to buy cadet t410b t410bw stat bimetal dp, 22a, wht box.
When the disc snaps, it either completes or interrupts a circuit. Series bt bimetal thermometer is accurate and reliable even. The entire switch is enclosed in a phenolic housing. Snap disc thermostats have many practical applications. Tfs5, bimetal temperature switch, for switching voltages up to 250 v, tv 35. The low profile and compact design allows it to be used in most applications that require miniaturization. The 3150 series is a singlepole, singlethrow switch activated by a snapaction bimetal disc. Precision and high reliability thermostats 009048 issue 3. Designed by senasys, the digital switch is a cost effective, flexible switching solution that allows for tight differentials and tolerances. The digital switch can be used as a standalone board mounted to the control panel, or as a completed enclosure as shown. The ccd101n is an spdt thermostat with the same features as the ccd100n, except that it has an additional pole which can be used to operate external alarm devices or as a limit controller in conjunction with other ccd. The bimetal element directly drives pointer, eliminating gears and linkage. These corrosion resistant units are constructed from stainless steel and are hermetically sealed to prevent crystal fogging.
Please read our safety information before attempting any testing or repairs. The series bt bimetal thermometersoffer accurate, reliable service even in the toughest environments. Our bimetal snap controls and limits provide temperature control, overheating protection, and unique configurations for many applications covering a wide array of industries. Bimetal temperature switch for industrial applications.
A bimetal switch changes its switching status relative to the temperature. Series bt bimetal thermometer is accurate and reliable. It is specialy designed for pcb mounting or other applications that have very small space for thermal switch mounting. If the temperature is sufficient, the bimetal bends, thereby actuating a snapaction switch. A wide variety of bimetal limit switch options are available to you, there are 123 suppliers who sells bimetal limit switch on, mainly located in asia. The s3taf temperature switch is ideal for high amperage rating with high ingress. Click add to cart to buy cadet t410b t410bw stat bimetal dp, 22a, wht box. Bimetal thermal switch 0f 650f cpi surface temp switch. Use bracket as a template to mark the location of mounting holes in plenum. We use a flat plate bimetal for the h series to achieve contact configuration. 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. For a disktype bimetal thermostat, 230c is considered to be upper limit because the disk cannot withstand the high temperature stress. Before testing the bimetal assembly, unplug the dishwasher or shut off the power at the fuse box or breaker panel to avoid an electrical shock hazard. Instead of being a mix of two or more metals, like alloys, bimetallic objects are made of layers of different metals.
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 robust round metal enclosure accommodates a resilient preloading disk, a bimetal disk and a silver contact. Wr02x125 switch bimetal asm part number wr02x125 replaces 1476396, ah2322681, ea2322681, ps2322681, wr02x12559. A coil of wire is used to heat a bimetal strip, which bends and operates a linkage that unlatches a springoperated contact. Ashcroft 63100mm 1008 pressure gauge drawing index. Mechanical bimetal thermostats with acceleration resistance for room heatingcooling. Ts01nw serial thermal switch is same as ts01 except no wiring attached. We routinely bond and manufacture custom, helium leaktested bimetallic assemblies.
Thermostatic bimetal is a composite material, usually in the form of a strip or sheet, made up of two or more metallic layers having different coefficients of expansion. Applicable to pcb, transformer, coil and medical equipment. Available in, switch action with nominal differentials from 30f to 80f 16. Instead of being a mix of two or more metals, like alloys, bimetallic objects are made of layers of different metals bimetallic strips move when they are heated up. It is a probless design for applications with space constraints, but we also offer the 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. Mar 09, 2016 bimetal switch is such a thermal device that automatically resets itself when it snaps back to curved in once an increased temperature returns to normal. Tbk10 bimetal thermostat bimetal thermostats frico. Bimetal means two different metals joined together. To service the detergent cup and bimetal switch, it is necessary to access the interior of the door.
When permanently bonded together, these layers cause the material to change its curvature when subjected to a change in temperature. Our s2taf is a bimetal temperature switch with brass body and an internal sensing cavity. The bimetal switch is selfresetting and is also used to prevent motor windings from overheating. 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 top countries of suppliers are china, taiwan, china, and india, from which the percentage of bimetal switch supply is 98%, 1%, and 1% respectively. Click add to cart to buy stelpro design inc swt1f bimetal sp thermostat white 22a. Compared to other temperature controllers with relatively low hysteresis, the temperature difference between the temperature switch opening and closing is significantly higher so as to a ensure a more obvious status indication, i. This double snap action makes these switches virtually immune to shock and vibration. Here you can find data sheets of our temperature switches for download. We use a flat plate bimetal for the h series to achieve. The highgrade engineering plastics with high tracking index like nylon, celcon and glass filled polyamide for the components ensures greater mechanical strength. Bimetal temperature switch for switching voltages up to 48 v.
It is of singlepole singlethrow structure and works under resistive load. Areas of application include temperature monitoring, control, and signaling in cooling and heating circuits as well as compressors and engines. The 2455rc series consists of a temperaturesensitive bimetal disc, electrically isolated from the switch, which actuates the normally closed contacts. The control contains a heat sensitive bimetal switch which regulates the running cycles. The little device that makes this possible is the bimetal, or defrost, thermostat.
We do, however, have experience in joining many other metals as well. It is most suitable for where areas is a tight constraint. A bimetal temperature switch suitable for industrial control applications. Senasys designs and manufactures a wide range of thermostat switches including, bimetal snap action, fluid filled capillary style, and a digital style thermostat. Manuals 06106 armiii 101832 control and installation manual 06128 countdown timer install instructions 06152 manual actuator manual 06344 series solenoid dioderesistor 102360 06472 installation instructions, suppression disconnect switch 06552 impulse releasing module irm 102748 06699 installation instructions, 101638 manual release switch 06700 installation instructions. Thermostatic bimetals engineered materials solutions. Bimetal switch is such a thermal device that automatically resets itself when it snaps back to curved in once an increased temperature returns to normal. 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. Thermal switch mini size bimetal thermal switch manufacture in china, yangzhou wuyue electric co. This switch can open or close a circuit and in so doing start or stop a process e. We routinely bond and manufacture custom, helium leaktested bimetallic assemblies continued. The s6taf features a wide differential and the s8taf features a low differential for different application requirements. This change of curvature, or bending, in response to temperature change, flex ivity, is a fundamental property of all thermostatic bimetals.
When permanently bond ed together, these layers cause the material to change its curvature when subjected to a change in temperature. Thermostatic bimetals comprise one of the most widely applied families of clad metals. Thermostatic bimetal designers guide engineered materials. Bimetal disc thermostats are thermally actuated switches. The top countries of suppliers are china, taiwan, china, and india, from which the percentage of. This interrupts the circuit and can be reset when the bimetal strip has cooled down. Atlas specializes in bonding aluminum, stainless steel, titanium, and copper. Temperature sensing is carried out by a bimetal disc, which snaps over when the nominal. The infinite heat switch is a unique control designed to modulate power to the resistive load without feedback, open loop style. Commercial thermostats ps 0090532en third draft 21sep09. Bimetal simple english wikipedia, the free encyclopedia. The bimetal will only snap back to its initial condition after the temperature has dropped significantly. The bimetal disc carries no current, and this eliminates the possibility of arcing.
Due to the small size of this unit and the inherently low mass of the bimetal snapaction disc, response of this thermostat to temperature changes is. The ccd100n is normally used as an acrosstheline switch, but may be used to operate contactor coils and other similar devices. Ksd301 series snapaction bimetal thermostat is a kind of miniature hermetically sealed bimetal thermostat 12 disc. We would be happy to discuss the pros and cons of each method for your application. Ccd100 series, nonindicating temperature thermostat for. The top countries of suppliers are china, india, and malaysia, from which the percentage of bimetal limit switch supply is 93%, 2%, and 1% respectively. Bimetal temperature switches concord, ontario, canada. Special features of button type thermal switch ts01nw. When the bimetal disc is exposed to its predetermined calibration temperature, it snaps and either opens or closes a set of contacts.
This compact bimetallic temperature switch will meet most industrial applications. How thermostatic bimetal works thermostatic bimetal is a composite material, usually in the form of a strip or sheet, made up of two or more metallic layers having different coefficients of expansion. Available in, switch action with nominal differentials from. Stelpro design inc swt1f bimetal sp thermostat white 22a bimetal thermostat, vertical mount, 1pole, 22a, 120277v temperature range. The case is laser welded to form a hermetically sealed steel housing, with a glasstometal seal at the terminal junction. This type of control is available only with electrical contacts that open as the. Get bimetal switch at best price with product specifications. A bimetallic strip is used to convert a temperature change into mechanical displacement. The different expansions force the flat strip to bend one way if heated, and in the opposite direction if cooled below its initial.
Bimetallic temperature controllers are used in the electrical industry for automatic temperature control. The bimetal temperature switch can be universally employed. The designer or manufacturer of the appliance prefer to use a bimetal thermal switch in their components because it is a proven solution of protecting the devices from possible risks or. Ashcroft 1259 process pressure gauge drawing index. Thermostats bimetal thermostats, switch thermostats. The switch opens or closes its contact upon rising temperature and resets automatically to the original switching state when the temperature has dropped. This breaks or completes the electrical circuit that has been applied to the thermostat. A normally open noopen in the normal state switch closes a circuit on reaching the switching temperature.
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