China Thermal Protector Manufacturer

China Micro Thermal switchs & thermostat manufacturer

Thermal Cutoff Switch

Product Item: Thermal Cutoff Switch
Category: Bimetal Switch
KSD301 thermal protector is divided according to the nature of action: Can be divided into normally open action and normally closed action.
Divided by volume: can be divided into conventional large volume and ultra-thin type.
Example: The following are ultra-thin volumes 16 * 5.2 * 3. Dedicated to battery packs and electric heating products!
KSD301 thermal protector application range
Ballast professional temperature switch
Thermal protector for fluorescent lamps
Motor temperature switch
Motor temperature control switch
Transformer temperature protector
Laminator thermal switch
Rechargeable battery temperature relay
Solenoid temperature limiter
Home appliance sudden temperature controller
PCB board relay

  • PRODUCT DETAIL
KSD301 thermal protector is divided according to the nature of action: Can be divided into normally open action and normally closed action.
Divided by volume: can be divided into conventional large volume and ultra-thin type.
Example: The following are ultra-thin volumes 16 * 5.2 * 3. Dedicated to battery packs and electric heating products!
KSD301 thermal protector application range
Ballast professional temperature switch
Thermal protector for fluorescent lamps
Motor temperature switch
Motor temperature control switch
Transformer temperature protector
Laminator thermal switch
Rechargeable battery temperature relay
Solenoid temperature limiter
Home appliance sudden temperature controller
PCB board relay



The KSD9700 series is a thermal protector that uses bimetal as a temperature sensing element. When the appliance is working normally, the bimetal is in a free state and the contacts are in a closed / open state. When the temperature rises to the operating temperature value, the bimetallic element quickly acts upon the internal stress generated by the heat, opening / closing the contacts, and cutting / connecting the circuit, thereby providing thermal protection. When the temperature drops to the set temperature, the contacts are automatically closed / opened to resume normal working conditions.

Thermal Cutoff Switch
Performance Parameters:

The company produces mainly KSD series thermostat sudden jump bimetallic thermostat,Especially in high-power thermostat for the leading products in this area we have a wealth of experience and strong R & D capabilities,The company's production of temperature control performance, high precision temperature control, carrying current, the product of good synchronization.Key raw materials from abroad, with Emerson's comparable products.Now is the one obtained only through the 60A current CE, TUV, UL, CUL and CQC safety certification.The company produces thermostat varieties, current from 5A-60A,Voltage from 110V-400V. Existing home but also for industrial use.

Thermal Cutoff Switch technical parameters: AC250V, 400V 15A-60A
Temperature range: -20 ℃ -180 ℃
Reset Type: Manual reset
Safety Certification: TUV CQC UL CUL S ETL

Thermal Cutoff Switch performance and principle
KSD302 series thermostat is a bimetal strip housing fully enclosed contact temperature temperature relay, according to the principle of thermal expansion and contraction of the metal sheet is bent off after reaching the set temperature, the temperature drops to the set temperature can be automatically connected pass, play on electrical safety protection.
● widely used: Widely used: welding machines, washing machines, air conditioners, refrigerators, thermostats sanitary ware, electric hot water bottle, electric kettles, electric heaters, electric ovens, water heaters, drinking fountains, microwave ovens, disinfection cabinets, electric pressure cookers, rice cookers temperature control and other industrial and home appliance products.

● Thermal Cutoff Switch Product Specifications
⑴ Function: temperature protection and thermal protection, anti-dry
⑵ Electrical Characteristics: AC250V / 15A ~ 30A ~ 40A ~ 50A ~ 60A
⑶ Maximum ambient temperature: 180 ℃
⑷ Operating temperature range: 0 ℃ ~ 180 ℃ (optional). Temperature tolerance: ± 5
⑸ normal insulation resistance:> 100MΩ
⑹ normal contact resistance: ≤100mΩ
⑺ life:> 10,000 or more
Thermal Cutoff Switch Product Precautions
⑴ When using a contact temperature installation should be closely aligns the charged surface of the metal lid of the appliance mounting surface.
⑵ When installing the cap can not face pressure deformation, so as not to affect the performance.
⑶ To prevent leakage, can not allow the use of liquid into the interior temperature, so as not to affect the electrical reliability.
⑷ This product is a bipolar wiring, when used according to label symbols, correct wiring.
⑸ product should be less than 90% relative humidity, ambient temperature below 40 ℃ ventilated, clean, dry, non-corrosive gases stored in the warehouse.


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