Dobavitelji bimetalnih termičnih izklopnih stikal za površinsko montažo

China custom bimetallic thermal disc cutoff switch has surface mount and PCB plug-in installation. Overheat circuit cutoffs switch (bimetal thermostat) so naprave, zasnovane za varovanje komponent v situacijah, ko pride do previsoke temperature. List of Select Surface Mount Thermal Switches and thermal protectors product Specs, datasheets, manufacturers & suppliers.

Surface Mount Bimetal disc Thermal Switch are indispensable components in the safe and efficient operation of motors/ Electrical appliances. S preprečevanjem pregrevanja, they protect Electrical appliancesfrom damage, podaljšajo njihovo življenjsko dobo, zmanjšati nevarnost požara, zagotoviti varno delovanje, ter čim bolj zmanjšati čas izpada in stroške vzdrževanja. Nadalje, Bimetal disc thermal switch help in complying with industry safety standards, zagotavlja brezskrbnost upravljavcem in zainteresiranim stranem. Ker tehnologija napreduje, thermal switch continue to evolve, ponuja natančnejšo in zanesljivejšo zaščito motorjev v številnih aplikacijah.

Z razvojem tehnologije, obseg uporabe motorja je vedno bolj obsežen, vedno bolj pomembna je tudi uporaba motorja v vsakdanjem življenju in proizvodnji. Zgodi pa se tudi nesreča z vžigom motorja, v resničnem življenju, izgorevanje motorja je v glavnem posledica naslednjega pregrevanja blokirane tuljave, obremenitev je prevelika preobremenitev motorja, pomanjkanje faze in drugi razlogi. Installing a heat protector is one of the effective ways to protect the motor. toplotno stikalo, imenovano tudi temperaturno stikalo, stikalo za nadzor temperature, itd. Je neke vrste temperaturno stikalo z bimetalno pločevino kot elementom za zaznavanje temperature, ko električna naprava normalno deluje, bimetalna pločevina je v prostem stanju, stik je v odklopljenem stanju, ko temperatura naraste na vrednost delovne temperature, bimetalni element se segreje, da povzroči notranjo napetost in hitro delovanje, odprite kontakt, prekiniti/poveži tokokrog, so as to play a bimetal thermal switch role. Wait until the ambient temperature drops to thereset temperature of the protector, kontakt bo ponovno zaprl priključeno vezje, in motor bo spet delal.

Temperature Switch for Motor Heat Sink Cooling Fan

17AM Normally Closed thermal Switch Thermostat For Motor

Surface Mount motor KSD9700 Bimetal temperature switch thermostat

Choosing The Right thermal switch
How to choose the right circuit Off bimetal disc switch is very important, sicer ne samo, da ne more igrati zaščitne vloge, vendar bo povzročil, da motor ne bo deloval zaradi napačne izbire, ali celo zažgejo.

1. Napetost & Trenutna odločnost
• Bimetal disc thermal switch have different voltage ranges 400V 380V 230V 220V 110V, DC motors will also have 36V 24V 12V, itd., according to different working voltages to choose different rated voltage protectors, načeloma, dejanska napetost je manjša ali enaka nazivni napetosti zaščite, na primer, 380V motor cannot choose rated voltage 220V protector, in nazivno napetost 220V zaščitnik se lahko uporablja v 110V motorju;

• The current of the electrical appliances motors is divided into three kinds of starting current, normalni delovni tok in blokirani tok, the rated current of the protector should be greater than the maximum value of the three currents, in je treba pustiti rob. Na primer, normalni delovni tok motorja 1A, začetni tok 1,5A, blokirni tok 2A, then the rated current of the selected protector is at least 2A, in najbolje je izbrati nazivni tok 3A ali 5A, da ohranite rezervo. Some motor starting current is greater than the rated current of the protector, vendar je začetni čas krajši, in normalni delovni tok in blokirni tok sta manjša od nazivnega toka zaščitnika, v tem primeru, lahko izberete tudi to zaščito. Ker je začetni tok večji od nazivnega toka, ampak zaradi kratkega časa, the thermal effect of the current has not had time to make the double piece heat leading to protection of the protector, da ne bi prišlo do napake.

White-Rodgers / RS PRO Surface Mount Bimetal Disc Thermostat

Bimetalni termostat KSD301 0C~350C Termalni nadzor 85C 95C 105C 125C 135C 145C 180C 250C 300C 350C Stopnja

KSD301 Bimetal Thermostats Thermal Cutoff Switch

2. Choose to thermal switch the temperature
• The choice of thermal switch temperature is related to three factors: insulation level of enameled wire, installation position and protector type.

The thermal switch temperature is lower than the maximum allowable temperature, na primer, the maximum temperature ofF class is 155℃, and the actual selection can be 145℃ or 150℃.

•The installation position is divided into built-in inside the coil and bundled outside the coil, because when the motor is blocked and forwarded heat, the overheating phenomenon spreads from inside and outside. If the protector is buried in the interior, the thermal switch temperature is slightly lower than the highest temperature of the enamelled wire; If it is tied outside the coil, consider the temperature difference between the inside and outside, and choose a lower temperature protector. Na primer, the insulation level is F class enameled wire, coil inside and outside the temperature difference of 20℃, then choose 155-20=135℃ or so of the protector;

Motor protector has protection functions such as overload, phase failure, imbalance, underload, grounding/leakage, and stall. It can form a motor control protection unit with electrical components such as contactors and motor starters. It has functions such as remote automatic control, on-site direct control, panel indication, signal alarm, and field bus communication.

3. Selection of the thermal switch life
Different motor lock-in test time different requirements for the life of the protector are not the same, such as normal household motor lock-in 18 days, the number of cycles of normal action reset will not exceed 100000 krat, the rated voltage current life of more than 100000 times can be selected protector; Some pump motors only do 3 days of blocking, načeloma, the life requirement is hundreds of times.

4. Selection of the thermal switch for sealing performance
Motor coil in the thermal switch process will dip paint to enhance the insulation performance of the process, dip paint is divided into drop paint, immersion, vacuum into the paint and other processes, especially the vacuum into the paint pressure is large, insulating paint is easy to enter the inside of the protector, resulting in the failure of the protector. The ST01 series of An Electronics has a very high sealing, under the condition of -0.08MP, the paint dipping rate can reach 3%; In the case of -0.03MP, the paint rate can reach less than one in ten thousand.

Motor protector parameters

Bimetal motor protector