6AP1 series thermal switches for automobile part motor overcurrent protection

TOPRO 6AP1 series of Thermal Protectors are protectors with overcurrent and overtemperature dual protection to precisely prevent damages of stalling or overcurrent to the motor. They were developed after Klixon 6AP to operate in wide temperature and current ranges, while providing THE SAME consistent performance characteristics and excellent reliability at MUCH LOWER prices. The 6AP1 operates as a sensitive power cut-out and is widely used in low voltage DC motors of automobile accessories, such as Window lift motors, Front and rear wiper motors, Sun roof motors, Adjuster motors, Antenna lift motors, Door lock actuators, Sliding door motors, Electric car seat motors, door-locks and various household electrical appliances.

Descriptions

※Features and Advantages
* Miniature size, long service life and high reliability.
* Bimetal materials with excellent electric conductivity are used to ensure that the product can withstand the normal loop current.
* Snap action from the combination of bimetal and heater strip.
* Very exact trip time to prevent the motor from over temperature.
* Overcurrent and overtemperature dual protection
* Strict implementation of RoHS standard for each and every component.
* Various terminals available for choice; 6AP1-A with same side terminals, 6AP1-B with opposite side terminals.
* Special specifications customization and cable riveting service available
* Power-off protection and delay protection.
* To provide more advanced protection for devices with turning parts.
* More suitable for abnormal protection of motors.

※Fields of applications
* Window lift motors
* Front and rear wiper motors
* Sun roof motors
* Adjuster motors
* Antenna lift motors
* Door lock actuators
* Sliding door motors
* Electric car seat
* Vacuum cleaners, Washing machines
* Heating devices
* Grinders, mixers, electrical tools
* Snow wipers and other garden equipments.

※Technical parameters
* Action Temperatures: 60 ~ 180 degrees centigrade (increments of 5 degrees centigrade)
* Temperature tolerance: +/-3°C, +/-5°C
* AC250V 18A, AC125V 28A
* Time to detect current at 25°C: 4~10 second (Dependent on the current rating)

Certifications

TOPRO 6AP1 series Thermal Protectors are the most ideal for low voltage DC motor protection in automobile accessories, UL, CQC, VDE certifications are not necessary. However, we can apply for such certifications if a customer deems it necessary. RoHS compliant reports are available upon request when appropriate.
Please contact us to request for clear copies of the certificates and test reports of the certifications when necessary.

Dimension Graph

Dimensions (mm) / Terminal configurations

Working Principle

6AP1 thermal protector is connected in parallel with PTC, and then is connected in series with the load (motor). The PTC will not produce high temperature when the load runs normally.

In case of load abnormity, the high temperature or large current that is caused will make 6AP1 thermal protector break the circuit, and now the PTC will produce high temperature and high resistance (the hot PTC will keep 6AP1 thermal protector disconnected), the load stops running.

When the power is manually cut off, PTC begins to cool. After a certain period of cooling, the temperature falls to the reset point, 6AP thermal protector resets to connect the circuit and the load resumes running.







Differential of terms: thermal protector, thermal switch, thermal protection switch, temperature switch, Thermal Cut-out, temperature controller, thermostat 
The terms thermal protector, thermal switch, temperature switch, temperature controller and thermostat all refer to a mechanical device that contains a bimetallic strip sensitive to temperature and is therefore used to trigger a snap action when the temperature rises to a preset point. The snap action can cut off or put through power supply to control the protected device.
Thermal protector is the most standard term. As in most cases a thermal protector is used to protect the motor of a machine, such as vacuum cleaner, power tools, mower, washing machine, compressor, the thermal protector is often referred to as a motor thermal protector or a thermal motor protector. As the thermal protector can make or break the circuit like a usual switch, it is also called a thermal switch or temperature switch. Since they are made with the key component, a bimetallic strip, they are also called bimetal Thermal Switches. A thermostat or temperature controller is used to control the temperature within a certain range. Unlike the motor thermal protector, the thermostat and temperature is often used in a heating device. Literally, thermal protection switches are the same  as thermal protectors or Thermal Switches.
TOPRO 17AM1 Motor Thermal Protectors are the same in quality and structure as 17AM thermal protectors made by Klixon, but much lower in price.