# CHANGZHOU HANCONG ELECTRONICS CO.,LTD.

> Changzhou Hancong Electrical Control Products Co., Ltd. is a professional leader China Thermal protector, thermal switch, KSD301 thermostat, Capillary thermostat manufacturer with high quality and reasonable price. Welcome to contact us.

## Contact Us
- [Mail](mailto:sales@hctemp.com): sales@hctemp.com
- [Tel](tel:+86-519-88166927): +86-519-88166927
- [Skype](skype:mandy_jiang123?chat): mandy\_jiang123

## Social Media
- [Facebook](http://www.facebook.com)
- [Googleplus](https://plus.google.com)
- [Linkedin](http://www.linkedin.com)
- [Twitter](https://twitter.com)

## Website Language Versions
- [English](https://www.hctemp.com): Thermal protector&Thermal switch - Hancong Electrical Control Products

## Website Navigation
- [Home](https://www.hctemp.com/index.html): Home
- [Thermal Protector](https://www.hctemp.com/Thermal-Protector-Thermal-Switch-pl8909474.html): Thermal Protector
- [Ksd301 Thermostat](https://www.hctemp.com/Ksd301-Bimetal-Thermostat-pl8809474.html): Ksd301 Thermostat
- [Capillary Thermostat](https://www.hctemp.com/Capillary-Thermostat-pl8599474.html): Capillary Thermostat
- [Water Heater Thermostat](https://www.hctemp.com/Electrical-Water-Heater-Thermostat-pl8799474.html): Water Heater Thermostat
- [Bimetal Thermometer](https://www.hctemp.com/Bimetal-Thermometer-pl8699474.html): Bimetal Thermometer
- [NTC Sensor](https://www.hctemp.com/Temperature-Sensor-Thermistor-pl8499474.html): NTC Sensor
- [Three Phase Power Supply Monitor Relay](https://www.hctemp.com/Three-Phase-Power-Supply-Monitor-Relay-pl8399474.html): Three Phase Power Supply Monitor Relay
    - [Time Delay Relay & Defrost Timer](https://www.hctemp.com/Time-Delay-Relay-Defrost-Timer-pl8299474.html): Time Delay Relay & Defrost Timer
    - [About Us](https://www.hctemp.com/About-Us.html): About Us

## Product Category
- [Thermal Protector, Thermal Switch](https://www.hctemp.com/Thermal-Protector-Thermal-Switch-pl8909474.html): Thermal Protector, Thermal Switch
    - [Creep action model](https://www.hctemp.com/Creep-action-model-pl3296154.html): Creep action model
    - [Snap action model](https://www.hctemp.com/Snap-action-model-pl3396154.html): Snap action model
- [Ksd301 Bimetal Thermostat](https://www.hctemp.com/Ksd301-Bimetal-Thermostat-pl8809474.html): Ksd301 Bimetal Thermostat
- [Capillary Thermostat](https://www.hctemp.com/Capillary-Thermostat-pl8599474.html): Capillary Thermostat
- [Electrical Water Heater Thermostat](https://www.hctemp.com/Electrical-Water-Heater-Thermostat-pl8799474.html): Electrical Water Heater Thermostat
- [Bimetal Thermometer](https://www.hctemp.com/Bimetal-Thermometer-pl8699474.html): Bimetal Thermometer
- [Temperature Sensor, Thermistor](https://www.hctemp.com/Temperature-Sensor-Thermistor-pl8499474.html): Temperature Sensor, Thermistor
- [Three Phase Power Supply Monitor Relay](https://www.hctemp.com/Three-Phase-Power-Supply-Monitor-Relay-pl8399474.html): Three Phase Power Supply Monitor Relay
- [Time Delay Relay & Defrost Timer](https://www.hctemp.com/Time-Delay-Relay-Defrost-Timer-pl8299474.html): Time Delay Relay & Defrost Timer
- [NTC Thermistor](https://www.hctemp.com/NTC-Thermistor-pl3618868.html): NTC Thermistor

## FAQ
- **Q: What is a thermal cut off switch?**
  A: A thermal cutoff is an electrical safety device that interrupts electric current when heated to a specific temperature. These devices may be for one-time use or may be reset manually or automatically.
- **Q: How does a thermal switch work?**
  A: A thermal switch is an electromechanical device which opens and closes contacts to control the flow of electrical current in response to temperature change. ... It cuts off the current to critical machinery when a temperature limit is exceeded preventing potential burn out or failure.