表面貼裝雙金屬片熱熔斷開關供應商

China custom bimetallic thermal disc cutoff switch has surface mount and PCB plug-in installation. Overheat circuit cutoffs switch (雙金屬溫控器) 係設計用于喺溫度過高嘅情況下保持組件安全嘅設備. 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. 透過防止過熱, they protect Electrical appliancesfrom damage, 延長其使用壽命, 降低火災隱患風險, 確保安全運行, 並最大限度地減少停機時間和維護成本. 此外, Bimetal disc thermal switch help in complying with industry safety standards, 令運營商和利益相關者高枕無憂. 隨著技術嘅進步, thermal switch continue to evolve, 為各種應用中嘅電機提供更精確、更可靠嘅保護.

隨著技術嘅發展, 電機嘅應用範圍越嚟越廣泛, 尤其是電機喺日常生活同生產中嘅使用都越嚟越重要. 但汽車燒傷事故都時有發生, 在現實生活中, 電機燒毀主要係由以下堵塞嘅線圈過熱引起嘅, 負載過大電機過載, 缺相同其他原因. Installing a heat protector is one of the effective ways to protect the motor. 熱敏掣, 也稱為溫度開關, 溫控掣, 等. 它是一種以雙金屬片為溫度傳感元件的溫度開關, 當電器正常工作時, 雙金屬片處於自由狀態, 聯繫人處於斷開連接狀態, 當溫度上升到動作溫度值時, 雙金屬元件被加熱以產生內應力和快速作用, 打開聯繫人, 切斷/連接電路, so as to play a bimetal thermal switch role. Wait until the ambient temperature drops to thereset temperature of the protector, 觸點將重新閉合連接嘅電路, 電機將再次工作.

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, 否則不僅不能起到保護作用, 但會導致電機因選錯而無法工作, 甚至燃燒.

1. 電壓 & 電流測定
• Bimetal disc thermal switch have different voltage ranges 400V 380V 230V 220V 110V, DC motors will also have 36V 24V 12V, 等。, according to different working voltages to choose different rated voltage protectors, 原則上, 實際應用電壓小於或等於保護器的額定電壓, 例如, 380V motor cannot choose rated voltage 220V protector, 额定電壓220V保護器可用于110V電機;

• The current of the electrical appliances motors is divided into three kinds of starting current, 正常工作電流和阻塞電流, the rated current of the protector should be greater than the maximum value of the three currents, 並且需要留出邊距. 例如, A電機正常工作電流1A, 啟動電流1.5A, 阻斷電流2A, then the rated current of the selected protector is at least 2A, 並且最好選擇3A或5A嘅額定電流以保留餘量. Some motor starting current is greater than the rated current of the protector, 但開始時間更短, 且正常工作電流和阻斷電流均小於保護器嘅額定電流, 喺呢種情況下, 你都可以選擇此保護程序. 因為啟動電流大於額定電流, 但由于時間短, the thermal effect of the current has not had time to make the double piece heat leading to protection of the protector, 以免造成誤動作.

White-Rodgers / RS PRO Surface Mount Bimetal Disc Thermostat

雙金屬溫控器KSD301 0C~350C熱控85C 95C 105C 125C 135C 145C 180C 250C 300C 350C度

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, 例如, 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. 例如, 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 日, the number of cycles of normal action reset will not exceed 100000 次, the rated voltage current life of more than 100000 times can be selected protector; Some pump motors only do 3 days of blocking, 原則上, 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 -0.08國會議員, the paint dipping rate can reach 3%; In the case of -0.03國會議員, the paint rate can reach less than one in ten thousand.

Motor protector parameters

Bimetal motor protector