Send Message
Home ProductsKSD301 Thermostat

LC KSD301 Thermal Switch, 250V 16A, Manual Reset, Phenolic Case, Terminal 90°

China Light Country(Changshu) Co.,Ltd certification
China Light Country(Changshu) Co.,Ltd certification
Customer Reviews
Thanks very much for your perfect quality and VIP service, we will keep contract and do more business with you!

—— Mark

We received your goods last thursday and we are very pleased with the quality of your product.

—— Igor Booklan

I'm Online Chat Now

LC KSD301 Thermal Switch, 250V 16A, Manual Reset, Phenolic Case, Terminal 90°

LC KSD301 Thermal Switch, 250V 16A, Manual Reset, Phenolic Case, Terminal 90°
LC KSD301 Thermal Switch, 250V 16A, Manual Reset, Phenolic Case, Terminal 90°

Large Image :  LC KSD301 Thermal Switch, 250V 16A, Manual Reset, Phenolic Case, Terminal 90°

Product Details:
Place of Origin: China
Brand Name: LC
Certification: UL, CUL, VDE, TUV, CQC, CE, KC
Model Number: T24
Payment & Shipping Terms:
Minimum Order Quantity: 2000ea, also support pilot run order.
Price: Depend on spec and qty.
Packaging Details: 41.5*32*25cm/2000PCS
Delivery Time: 35 days
Payment Terms: T/T
Supply Ability: more than 50,000pcs per day

LC KSD301 Thermal Switch, 250V 16A, Manual Reset, Phenolic Case, Terminal 90°

Manufacturer: Light Country(Changshu) Co.,LTD Product Name: KSD301 Thermostat
Operating Temperature: 0℃~250℃ Electrical Rating: 15A/250V AC, 16A/250V AC
High Light:

ksd301 thermal switch


ksd301 temperature switch


Manual Reset KSD301 Thermostat


1. What is KSD301 thermal switch? 

KSD301 Thermal switch is a small bimetal snap-action thermal protector with shell.

Action principle is that the component bimetal disc jump at the change of temperature, the contact point can be closed/opened rapidly to connect/disconnect the circuit, to protect the machine or machine operators, or to control the temperature. 

A wide range of temperature, low temperature till high temperature, can be set according to customer requirements.

Cap/Case material, Bracket type/Terminal Orientation/Terminal Size could be customized based on actual demand.


2. Specification. 

 Model name  T24 KSD301 Thermal Switch
 Application  Household, Office, Electrical/Industrial, Communication
 Contact type  Manual Reset
 Height  12.6mm
 Electrical Rating  16A/250V AC, 15A/125V AC, 10A/250V AC
 Operating temperature  0℃~250℃
 Temperature Tolerance  ±3℃ or more(depend on customer)
 Differential  8℃ or more(depend on customer's demand.)
 Endurance  100,000 cycles or more
 Case material  Phenolic
 CAP material  Aluminum
 Bracket material  Stainless steel
 Terminal Material  Copper
 Terminal Orientation  90°
 Terminal Size  4.75mm(0.187inch)
 Circuit Resistance  50mΩ or less
 Insulation Resistance   100MΩ or more(DC 500V)
 Dielectric Strength   AC 1,450V for 1 min.


More bracket/Terminal types,case material options are as below. We would like to cooperate customer for new design.


LC KSD301 Thermal Switch, 250V 16A, Manual Reset, Phenolic Case, Terminal 90° 0

3. Attentions about thermal switch installation.

 1). During KSD301 thermal switch using process, need to avoid moisture and pollution, otherwise it will affect the electrical performance of the product. Recommended KSD301 thermal switch working environment is that relative humidity ≤90%, no contact with corrosive and flammable things.


2). During KSD301 thermal switch installation, need high attention that the temperature-sensitive surface should not be deformed, and the top of the cap should not be collapsed or deformed, so as not to affect the temperature performance and electrical performance of the product.


3). During KSD301 thermal switch installation, need to make sure the switch’s temperature-sensing surface to be evenly contacted with the temperature-controlling part, and the force should be evenly applied to stabilize the temperature-sensing. Besides, need to coat the surface of temperature-sensitive with thermal grease or other similar heat-conducting medium.


4). During KSD301 thermal switch installation, the terminals should not be bent vigorously, and the connections between terminal and wire should be in good contact, otherwise the electrical contact reliability will be affected.


5). When select KSD301 thermal switch, need to confirm the accurate temperature. To avoid temperature changes caused by thermal inertia, thermal conduction and other factors, need to consider the following factors.

 a. Detection part of temperature control.

 b. Thickness and material of heat transfer component.

 c. The power of the heating element.

 d. Amount of heated medium.

 e. Ambient temperature and air pressure.


6). Manual reset thermal switch can only be reset after the temperature drops at least 20℃; And when reset, the force should be moderate, to just can make the thermostat reset as appropriate (about 5~6N), otherwise there is an impact on the temperature.


7). During using process, need high attention to avoid cracks caused by the large force on the case inside, and liquid penetrates into the thermostat. Keep the case clean to prevent the insulation performance from decreasing or even short circuit breakdown after the thermostat polluted by the conductive medium.


8). Thermal Switch shall be installed with cap connected with the grounding metal parts or the power grounding wire of the equipment to reduce the electromagnetic radiation and interference signals of the complete machine.


9). When using KSD301 thermal switch, recommend to choose following wires considering rated current:

Rated current Traverse area UL wire gauge Rated current Traverse area UL wire gauge
≤3A 0.3 mm² AWG22 ≤15A 2.0 AWG14
≤5A 0.5 mm² AWG20 ≤20A 3.5 AWG12
≤7A 0.75 mm² AWG18 ≤30A 5.5 AWG10
≤12A 1.25 mm² AWG16 -- -- --


10). The operating temperature of thermal switch is tested at the rate of 1℃/min in the hot air circulating oven. Therefore, when select the thermostat, you can choose the temperature according to your operating conditions. We recommend that you confirm that through both normal and abnormal status.


4. About us. 

 Light Country was founded in 1985 in Taiwan.

 We dedicate on KSD301 thermal switch and rocker switch.

 These parts are widely used in household appliance, electrical products, industrial facilities, medical devices, etc.

 To provide customer best service, we’re with integration of R&D, production, sales and post-sales as well.

 Our factory already got ISO9001, ISO14001, IATF16949 certificates.

 Our products already got CQC, UL/CUL, VDE, TUV, SEMKO, NEMKO certificates, comply with ROHS/REACH regulations.

 We promise high quality products, timely delivery, attentive service, effective improvements.


 Thanks for your time, please feel free to contact us via below ways,

 Sales: Thomas Lee/Julie Liu

 Tel: +86 138 6234 1050

 Mail: or

 WhatsApp: +86 15850802713



Contact Details
Light Country(Changshu) Co.,Ltd

Contact Person: Ms. Julie

Tel: +86-180-2126-2273

Fax: 86-512-52843553

Send your inquiry directly to us (0 / 3000)