The KSD9700 heat protection device has the characteristics of small volume, shell insulation, sensitive action, and long life. The thermal protection device is composed of a dual metal component with a thermal ceramic shell, a welding of silver alloy contacts, conductive brackets, insulating fixed seats, static tactics and heat -resistant wires.

The fully enclosed structure can prevent the components from polluting dust or impurities. When the current is over, the dual metal component with impedance. When the non -normal work, when the current increases or the surrounding temperature rises to the set temperature value, the dual metal components quickly move, turn on the contact, and cut off the circuit. When the device is cooled to the safe operating temperature, the contacts are automatically closed to restore the normal working state.

Temperature detection method:

Connect the two leads of the sample to the fixture of the test equipment, turn on the current of about 10mA (not more than 100mA), and use a LED to indicate the current on and off.

Then put the sample into the special temperature measuring equipment. (The temperature in the testing equipment should be uniform, and the heating speed can be controlled) The thermometer probe should be close to the sample, and control the temperature of the testing equipment to rise at the rate of 0.5~1 ℃/min. When the LED goes out, record the thermometer reading as the action temperature of the sample.

Technical parameters: Operating Temperature: 25-180℃ (one step for every 5℃)

Rated Voltage :AC250V/AC125V;

Rated Current:5A/8A

Electric intensity: ≥800V

Contact resistance: ≤50mΩ

Lnsulation resistance: ≥ 100MΩ

Response speed: ≤1℃/min

Service Life: ≥ 10000 times

Description of Reset Temperature:

When the operating temperature is below 75 ℃, the reset temperature is the operating temperature minus 20 ℃+15 ℃;

When the operating temperature is 75 ℃~100 ℃, the reset temperature is the operating temperature minus 30 ℃ ± 15 ℃;

When the operating temperature is above 100 ℃, the reset temperature is the operating temperature minus 40 ℃ ± 15 ℃;

As it is a mechanical switch, according to the industry regulations, every 5 ℃ is a gear.

It is widely used for the overheating and overcurrent dual protection of fractional horsepower motors, hot water appliances, fluorescent lamp ballasts, transformers, automobile motors, integrated circuits and general electrical equipment.

Attention:

1. When the contact temperature sensing installation is adopted, the product shall be closely attached to the installation surface of the controlled appliance.

2. Do not collapse or deform the plastic or metal shell during installation to avoid affecting the performance.

3. In the installation of metal shell products with insulation jacket, the external insulation jacket shall not be removed or broken to avoid electric leakage and ensure safe use.

4. When the product is used in a circuit with a current not greater than 5A, the conductor with a copper core section of 0.4-0.75 mm2 shall be selected for connection.

5. The product shall be stored in a ventilated, clean, dry place without corrosive gas where the relative humidity is less than 90% and the ambient temperature is below 40 ℃.