Thermal Fuse Auto Reset Thermal Fuse Thermal Switch Temperature Switch

BW & BH series that can protect against over-current and over-temperature are sealed firmly, small internal resistance, no noise and reset automatically. When current through bimetal that are sensitive to temperature and current, the status of the bimetal will be changed by over-temperature or over-current to cut off circuit or switch on circuit. BH series are safer than normal protectors, as there is no temperature effect lag under condition of sudden big current.

BH series thermostat’s Specification

Electrical Rating:

KSD9700 series thermal protector’s Dimension

BW-ABJ Thermal Fuse Auto Reset Thermal Fuse Thermal Switch Temperature Switch

temperature controller,effective reliable security protector and alarm devices, are widely used in various types 1.5 horsepower motors,temperature controller, inverter welding machine, switch power,temperature controller, fluorescent lamp ballasts,temperature controller electric appliances and other electric equipment to prevent from over-current & over-heating caused by abnormal work status. Enforced types that can withstand pressure of 3.5MPa are fit for build-in-installation of plastic coated motor.

BW series thermostat / KSD9700 thermal protector / BW9700 temperature protector

1. BW series thermostat’s Principle and structure
BW serial universal and enhanced protectors with large metal casing are composed of the thermal conductive metal casing, bimetallic parts welded with silver alloy contact point, conductive bracket, insulation fixation stand, fixed contact strip and heat resistance cable. In case of abnormal operation, along with the increase of the environment temperature to the set value, the bimetallic parts perform quick action, open the contact point, and disconnect the circuit. When the device is cooled to the temperature for safe operation, the contact point will automatically closes and recover normal operation.

2. BW series thermal protector’s Specification

2.1. Switch type: normally closed, normally opened.

2.2. Operating Voltage / Current: AC250V / 5A; AC125V / 8A

2.3. Operating Temperature: 40~150℃ (one step for every 5°C)

2.4. Standard Tolerance: +-3°C / +-5°C / +-7°C

2.5. Reset temperature: operating temperature decrease by 15-45°C

2.6. Contact Closure resistance: ≤50mΩ

2.7. Insulation resistance: ≥100mΩ

2.8. Electric strength: AC1500V/1min free from phenomena of break down and flashover.

2.9. Service life: 10000 times

3. BW series thermal protector’s Dimension

4. BW series temperature protector’s Application
BW series is applicable to chargeable battery, ballast, massager, motor, transformer, electric tools, heat electric appliance and instrument etc.

The product UL,CQC,VDE and RoHS certification approval.

Dong 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 temperature controllers, thermostat, thermal protectors , temperature switch, temperature protector bimetal thermostat and other related products, our company has more than 10 senior technicians who are very familiar with this industry. Our product have been certified by CQC,TUV,UL CUL and ROHS environmental certification. Our company is always adhering to ISO 9001:2000 Quality Management System and the product quality is automatically inspected and controlled by the computer. Our annual output can reach 50,000,000 pieces and our products are widely exported to Europe, America and South Asia.