Thermik S01
Overview
Product sourcing insights & recommendations
The Thermik S01 is a globally recognized bimetallic thermal protector known for its reliability and precision in motor and industrial protection. Below is a synthesis of its technical performance, market trends for 2026, and sourcing insights.
Core Product Insights: Thermik S01
The S01 series is a "Normally Closed" (NC) switch that automatically resets once the temperature drops below the threshold. ThermikTanpoqiuer
* Switching Range: Supports 60°C to 200°C in 5°C increments. ThermikLinkedin
* Electrical Capacity: Rated for 250V AC (2.5A) and up to 40A DC for specific cycles, making it highly versatile for both AC appliances and DC automotive components. ThermikTanpoqiuer
* Durability: Features a high pressure resistance of up to 450 N and high-voltage resistance of 2.0 kV, ensuring stability in harsh industrial environments. Thermik
Market Trends & Industry Dynamics (2026–2035)
The global thermal protector market is experiencing a robust growth phase, projected to reach USD 5.37 Billion by 2035 with a CAGR of 5.82%. SphericalinsightsDataintelo
* EV & Battery Expansion: The rapid shift toward Electric Vehicles is a primary driver, as thermal switches like the S01 are critical for safeguarding battery packs and high-power charging systems from thermal runaway. SphericalinsightsCarbonbrief
* Miniaturization: There is a surge in demand for compact switches (like the 9.5mm diameter S01) due to the shrinking footprint of consumer electronics and wearables. Sphericalinsights
* Smart Integration: Future trends point toward "Intelligent Thermal Protection," where traditional switches are paired with IoT-enabled sensors for predictive maintenance. Sphericalinsights
Sourcing & Supplier Landscape
Authentic German-made Thermik products command a premium, while various alternatives are available for cost-sensitive applications.
* Pricing: Original Thermik S01 units typically range from $6.00 to $25.00 depending on the specific model and order volume. AlibabaAlibaba
* Chinese Alternatives: Cost-effective alternatives (e.g., 9700 series) are available for as low as $0.13 - $0.80, though they may differ in precision and pressure resistance. AlibabaAlibaba
* Supplier Hubs: Major distribution hubs for these components are located in Shenzhen and Dongguan, China, offering both original imports and local equivalents. AlibabaAlibaba
Thermik S01 Temperature Switch
Products · 2 lists

Original German Thermik S01 Series Temperature Switch Motor Thermal Protection 60-250°C
Shenzhen Quansheng Electronics Co., Ltd.🇨🇳CN4 yrs
Germany Original Brand New THERMIK S01.070.05.0016.016 Temperature Control Switch Thermal Protector

Germany Original brand new THERMIK S01.070.05.0016.016 Temperature Control Switch Thermal Protector
Shenzhen Keshengtai Electronics Co., Ltd.🇨🇳CN5 yrs
HCET S01 Mini Button Type Thermik Adjustable Temperature Sensitive Control Switch
Nanjing Haichuan Electronic Co., Ltd.verified🇨🇳CN11 yrs
Hot Selling S01 Thermik Temperature Switch Thermal Cutoff Protector 150℃ Temperature Controller Thermal Protector
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Button type thermal protector snap action and bimetallic thermostat thermik s01 disc bimetal thermal protector motor switch
Yangzhou Baozhu Electric Appliance Co., Ltd.🇨🇳CN15 yrs
GB-6S01 IP67 Semi-circular Type-C Thermostat Switch 3 Gear Temp Control 3.7-5.5V 0-2A for Heating Clothes Garment Bulk Supply
Shenzhen Green Bright Technology Limited Company🇨🇳CN8 yrs
BW KSD9700 TB02 BHB2D YS11 17AM ST-22 ST-12 KSD301 KSD302 KSD01F S01 S06 TP1 TP2 Thermostat Thermal Switch Battery Protector
Dongguan Tianrui Electronics Co., Ltd.🇨🇳CN16 yrs
Normally Close Temperature Switch KSD-01F Thermal Switch Thermostat Temperature Controller
Shenzhen R.D.S Electronics Co., Ltd.🇨🇳CN7 yrs
Normally Close Temperature Switch KSD-01F Thermal Switch Thermostat Temperature Controller
Shenzhen Zhonghaisheng Technology Co., Ltd.🇨🇳CN9 yrs
XK-W2001 Digital Display Electronic Thermostat Temperature Controller Switch Adjustable Temperature Socket W2001
Shenzhen Pinkuo Trading Co., Ltd.🇨🇳CN2 yrs
KSD301 250V 10A Normally Closed NC Thermostat Temperature Thermal Control Switch
Shenzhen Hanheng Technology Trading Co., Ltd.verified🇨🇳CN7 yrs
KSD301 250V10A16A 90C Automatic Reset Snap Action Thermal Switch Bimetal Thermostat Heater Temp Control Switch Toggle High
Dongguan Runneng Electric Mechanical Co., Ltd.🇨🇳CN4 yrs
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Shenzhen Sungood Electronics Technology Co., Ltd.verified🇨🇳CN4 yrs
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KSD301 250V 10A Normal Closed Open Temperature Switch Thermal Control 40C 50C 70C 80C 90C 100C 120C 130C 140C 150C Centigrade
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XK-W2001 Digital Display Electronic Thermostat Temperature Controller Switch Adjustable Temperature Socket W2001
Shenzhen Alisi Electronic Technology Co., Ltd.🇨🇳CN8 yrs
Baile Ksd 301 Temperature Switch 250v 10a Bimetal Thermal Switch Thermostat for Heating Floor
Jiangsu Baile Electric Co., Ltd.🇨🇳CN13 yrs
KSD301 10A Thermostat Switch 40C~150C Temperature Thermostat Switches Thermal Control 75C 85C 95C 105C 125C 135C 150C Degree
Shenzhen Binyueda Electronics Co., Ltd.🇨🇳CN6 yrs
5PCS 10A 250V KSD301 Normally Closed NC Temperature Switch Thermostat 40 60 65 75 85 90 95 100 125 150 180 185 190 200 250 300
Shenzhen Yongyetai Electronics Co., Ltd.🇨🇳CN5 yrs
KSD301 250V 10A Normally Open NO Thermostat Temperature Thermal Control Switch
Shenzhen Yuzens Technologies Co. Ltd.🇨🇳CN12 yrs
Digital Temperature Control Plug Socket Thermostat Switch (XK-W2001)
Shenzhen Yago Technology Limitedverified🇨🇳CN10 yrs
XK-W2001 Electronic Temperature Control Socket Thermostat Control Fully Automatic Switch Adjustable Digital Display
Shenzhen Eshinede Technology Co., Ltd.🇨🇳CN8 yrs
Bimetallic Thermal Switch KSD301 Thermostat NC Type 125V 250V 10A 15A 16A Thermostat Temperature Switch
Ningbo Zhenhai Win-Win Electronic Appliances Co., Ltd.verified🇨🇳CN13 yrs
KH Boiler Temperature Sensor KSD301 Iimit Thermostat 16A 125V Temperature Switch
Foshan Kehua Electric Appliance Co., Ltd.🇨🇳CN12 yrs
#48037 W2001 LED Thermometer Temperature Controller Digital Thermostat Switch With Probe for Reptiles Brewing Seedling Aquarium
Shenzhen Chipskey Technology Co., Ltd.verified🇨🇳CN15 yrs
KSD301 0-350 Degree 10A 250V Normally Closed Open Temperature Switch Thermostat 95 55 60 250 70 180 130 300
Shenzhen Chuangyida Electronics Co., Limited🇨🇳CN6 yrs
KSD301 0-350 Degree 10A 250V Normally Closed Open Temperature Switch Thermostat 95 55 60 250 70 180 130 300
Shenzhen Ruised Technology Co., Ltd.🇨🇳CN9 yrs
Aismartlink KSD301 Centigrade Thermostat Thermal Control Switch 250V 10A Normally Closed NC Thermostat Temperature Switch
WuHan Aismartlink Intelligent Technology Co., Ltd.verified🇨🇳CN9 yrs
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Sources & References
23 sources cited · Verified industry data & reports
Thermal Protector S01
Thermik Gerätebau GmbH
Technical specifications. Nominal switching temperature (NST) in 5°C. 60 °C - 200 °C. Tolerance (standard). ±2.5 K / ±5 K. Reverse switch temperature (RST). UL.
Thermal Protector S01-HT
Thermik Gerätebau GmbH
Technical specifications. Nominal switching temperature (NST) in 5°C. 205 °C - 250 °C. Tolerance (standard). ±10 K. Reverse switch temperature (RST) below NST.
Datasheet: Thermal Protector S01 Type Series 01 | PDF
Scribd
S01 Type: Normally closed; resets automatically; with connector cables; insulation: Mylar®-Nomex® 1:1 Nominal switching temperature (NST) in 5 °C increments 60 ...
DATASHEET
Thermik Gerätebau GmbH
S01 Type: Normally closed; resets automatically; with connector cables; with or without epoxy; insulation: Mylar®-Nomex® Diameter d 9,5 mm Installation height ...
thermik - 坦泼秋尔 Tpqe
tpqe.com
S01 Type: Normally closed; resets automatically; with connector cables; with or without epoxy; insulation: Mylar®-Nomex® 1:1 15,0mm thermik 01 140 05 Nominal ...
What are thermal protectors / temperature limiters?
Thermik Gerätebau GmbH
Products from Thermik are primarily used in the household device industry and in special applications in the automotive sector. They protect components and end ...
