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Premium KSD Bimetal Thermostats & Thermal Protection Solutions

Trusted manufacturer of KSD301, KSD302, NTC sensors, and thermal switches for home appliances, industrial systems, and automotive applications.

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Who We Are

Dongguan Heng Hao Electric Co., Ltd is located in Dongguan City, Guangdong Province with very convenient transportation and favorable geographic location. We are specialized in developing and producing high-quality bimetal thermostats, thermal protection switches, and temperature sensors for global markets.

Our Expertise

  • Over 10 years of experience in thermal control components
  • Certified by UL, CQC, TUV, CUL, and ROHS
  • Exported to Europe, North America, Middle East, and Southeast Asia
  • Monthly production capacity exceeding 5 million units
Factory Equipment Quality Inspection

Quality Assurance

Our thermostats and thermal protectors are certified by CQC, TUV, UL, CUL, and ROHS, ensuring compliance with international safety and environmental standards.

Certified Safety

UL, CQC, TUV, CUL, and ROHS certified products for global compliance.

Precision Testing

Each unit undergoes rigorous temperature, endurance, and electrical testing.

Customer Trust

Trusted by manufacturers in home appliances, automotive, and industrial sectors.

Our Products

Explore our wide range of KSD bimetal thermostats, thermal protection switches, NTC thermistors, and temperature control solutions.

KSD301 Bimetal Thermostat

KSD301 Manual Reset Thermostat

  • Voltage: AC 250V / 125V
  • Current: 10A / 16A
  • Reset Type: Manual & Auto Reset
  • Applications: Electric kettle, heating pad, refrigerator
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Snap Action KSD Thermostat

Snap Action KSD Bimetal Thermostat

  • Body: Plastic / Ceramic
  • MOQ: 1000 PCS
  • Price: $0.2 - $0.3 per PC
  • Certification: RoHS Certified
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BW9700 Thermal Protector

BW9700 Motor Thermal Protector

  • Voltage: 250V, 5-16A
  • Temp Range: 30°C - 150°C
  • Certifications: UL, TUV, CQC, KC
  • Applications: Pump, motor, compressor
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KSD302 Thermostat

KSD302 Auto Reset Thermostat

  • Type: Large Current, High Performance
  • Applications: Electric welding machine, oil press
  • Reset: Auto & Manual Reset
  • Voltage: 250V
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NTC Thermistor Sensor

NTC Thermistor Temperature Sensor

  • Types: 10K 3950B, 10K 3435K
  • Probes: 10K, 100K, PT100, PT1000
  • Precision: High sensitivity & stability
  • Applications: HVAC, medical devices, industrial control
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Thermal Cut Off Switch

Bimetallic Thermal Cut Off Switch

  • Type: Normally Closed / Open
  • Voltage: Up to 250V
  • Certification: RoHS Approved
  • Applications: Overheat protection, battery chargers
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KSD Bimetal Thermostat

250V KSD Bimetal Thermostat

  • Lifetime: 100,000 cycles
  • Contact: Normally Closed & Open
  • Voltage: 0-250V
  • Applications: Home appliances, heating systems
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Mini Thermal Switch

BH-TB02B-B8D Mini Thermal Switch

  • Voltage: 250V, 2A
  • Size: Compact design
  • Applications: Small motors, electronics
  • Certification: UL, TUV, CQC
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Contact Us

For pricing, samples, or technical inquiries, please visit our official website to get in touch with our sales team.

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