陶瓷和贝克利特KSD301温度开关

The following is a core comparison and selection guide for ceramic and Bakelite ‌KSD301 temperature switches. Comprehensive technical parameters and application scenario analysis:
1. Comparison of core material characteristics‌

特征	Ceramic material	Bakelite material
‌Temperature resistance limit‌	>300℃ (long-term stability)	≤150℃ (easy to deform and age above 160℃)
‌Thermal conductivity‌	High thermal conductivity (20-30W/m•K), 响应速度快	Low thermal conductivity (about 0.3W/m•K), delayed response
‌Insulation strength‌	Breakdown voltage ≥10kV, strong electrical isolation	Low breakdown voltage (depends on thickness)
Corrosion resistance	Resistant to chemical corrosion, suitable for acid and alkali environment	Suitable to organic solvent erosion
Mechanical strength	High hardness (Mohs 7), wear resistance	Medium strength, easy to process

提示: 150℃是材料选择分界点. 陶瓷模型 (例如KSD302) 必须高于此温度.

KSD301 SPECIFICATION，Ceramic and Bakelite KSD301 parameter download

Bakelite KSD301和陶瓷KSD302的比较

Bakelite KSD301 temperature switch

Ceramic KSD302 temperature switch

2. Models and applicable scenarios‌

Parameters‌	Ceramic model (例如KSD302)	Bakelite model (KSD301)
‌Action temperature range‌	45℃~300℃ (supports ultra-high temperature control)	40℃~250℃ (conventional temperature range)
‌典型应用‌	– Industrial furnace, 电机过热保护 – Automobile engine heating system – High temperature disinfection equipment	– 饮水机, 咖啡机 (<100℃) – Small household appliance circuit board – Low voltage heater
‌Protection level‌	防护等级00 (metal shell grounding)	防护等级00 (塑料外壳)

3. Selection considerations‌

‌Temperature sensitivity‌
If the instantaneous temperature of the equipment may be greater than 150℃ (such as motor stalling, 干燃烧), the ceramic model must be selected to avoid Bakelite melting and short circuit.
‌Cost and maintenance‌
The unit price of the Bakelite model is low (about ¥1.3~2.5), and the ceramic model is 30%~50% more expensive but has a longer life.
‌Installation compatibility‌
Pay attention to the brittleness of the ceramic model to avoid mechanical extrusion; the Bakelite model is prohibited from welding terminals (high temperature damage).

‌Fourth, Operation Suggestions‌
美人鱼复制代码
graph LR
A[Equipment operating temperature] –>|≤150℃| 乙[Select bakelite KSD301]
A –>|＞150℃| C[Select ceramic KSD302]
乙 –> D[Check load current ≤15A]
C –> 乙[Reserve heat dissipation space]

▶qummary‌: The bakelite model is cost-effective and suitable for daily household appliances; the ceramic model is just needed in high temperature and corrosive scenes and is more reliable for long-term use.