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Lithium Battery Thermal Protector

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KSD9700 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.
KSD9700 series is applicable to chargeable battery, ballast, massager, motor,transformer, electric tools, heat electric appliance and instrument etc.

  • 17AMI


17AMI SPEC.pdf

17AMI thermal protector advantages:
• Miniature size.
• Individually temperature calibrated and checked.
• Positive make and break with Klixon snap action disc.
• Repeatable temperature performance over life.
• Gasket steel case suitable for many impregnation processes.
• Current and temperature sensitivity for maximum design flexibility.
• Wide selection of leads and insulating sleeves.
• Same size and opposite side terminations.
• Cadmium free contacts.

Technical parameters of 17AMI thermal protector:
Rating: 22 A / 115 V--- AC, 10 A / 250 V--- AC, 20 A / 16 V--- DC
Action temperature range: 55 ºC~ 185 ºC ±5ºC
Dimension: 23×10.4×4.6 mm
Contact resistance:<40mΩ
Insulation resistance:>100MΩ
Response speed:≤1ºC/min
Operation cycles: >10000 Times
Approvals: UL CSA TUV CQC RoHS

• Shaded Pole Motor
• Permanent split capacitor motor
• Fluorescent lighting ballasts
• HID ballasts
• Transformer
• Recessed lighting fixtures
• Battery packs
• Vacuum cleaners
• Automotive accessory motors, solenoids, PC boards


17AMI series motor thermal protector construction:

1,17AMI series are overcurrent and thermal protector products,small size and quick response,it
has been widely used in precise controlling of temperature limited or current limited
components in motor,transfomer etc.

2,17AMI thermal protector products's principle:current following through the bimetal strip and
two contacts,when an electric appliance under non normal work status,the temperature or current
reach the max limitation for OFF,the bimetal strip will break off immediately and cut off the
circuit.When the electric appliance back to normal temperature the bimetal will close
immediately and connect the circuit.This thermal protector has automatic reset function.
17AMI used
3,17AMIOP series products are added PTC based on 17AMI.The power-off protection and delay
protection effect,this type requires cut off the circuit then reset to work status,with
reliable and safe characteristic.

4,17AMIRP series products are added thermal compensation resistor based on 17AMIOP which original
type is manual reset,this provide a precise overcurrent protection.This type could be adjusted
based on customer's different current or time requirements,this type also requires cut off the

circuit then reset to work status,with reliable and safe characteristic.

17ami Motor thermal protector


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L&G ELECTRONIC CO.,LTD. factory in China mainland was established in 2007 and the HongKong office Was established in 2014. We turned into a manufacturer engaged in the R&D, manufacture and trading companyof Switches, Thermalprotector, Potentiometer ,rotary rheostat and jacks.
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Dazhou Industrial Zone, Shijie Town, Dongguan City, Guangdong, 523291 CN
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