Промышленный предохранитель от перегрузки BR 250V 16A для электродвигателей

Description of Industrial BR Thermal Overload Protector Switch For Electric Motors      The BRI series thermal protector are temperature and current protectors, which made of thermal bimetal, a high-quality thermal sensitive material imported from Japan. This product is mainly used for overheat overload protection of motors and electric appliances. There are these features: quick temperature sensing, sensitive action and reliable performance.Versatility and no need maintenance.

Specifications of Industrial BR Thermal Overload Protector Switch For Electric Motors  1. rated break temperature: 110 ℃-150 ℃( ±5 ℃)
2. reset temperature: break temperature -30℃ (±15 ℃)
3. rated voltage: 380V
4. contact resistance: ≤50m Ω
5. Max passing current: 16A-50A
6. electrical strength: AC 1500V/min
7. durability: > 2000 times
8. wire diameter: 1.5 mm² 
9. range of application : <3000 W

Characteristics of Industrial Thermal Overload Protector Switch For Electric Motors  

* Miniature size, easy to install.
* Individually temperature calibrated
* Rapid heat transmission and snap action trip off
* Repeatable temperature performance and high durability
* Sealed steel case and no breakdown and no flashover
* Both current and temperature sensitivity for maximum design flexibility
* Wide selection of leads wire

* Packed by imported Mylar insulating sleeves
* Every component meet RoHS environmental standard
* Cadmium free silver-nickel alloy contacts
* Wide selection of trip off temperatures
* Internal resistance as low as below 50 milliohm

Structure and Working Principle of Industrial Thermal Overload Protector Switch For Electric Motors  

This product is produced according to the thermal bimetal material heated bending force characteristics, the butterfly double metal components for special treatment, with the increase of temperature, butterfly storing energy device, when the temperature reaches thermal protector rated breaking temperature, the effects of butterfly element force moment reverse action, disconnect contact, to cut off the circuit of protected, so as to achieve protection function;When the temperature drops to the automatic reset temperature of the thermal protector, the contact closes the connection circuit and the power is restored.When the current of the protected body exceeds the rated current, the butterfly element generates heat energy due to the current. When the temperature of the thermal protector is reached, the acting force generated by the butterfly element will reverse in an instant and cut off the circuit, thus achieving the protection function.

Applications of Industrial BR Thermal Overload Protector Switch For Electric Motors 

 The thermal protector is mainly embedded in the winding of rotating motor, which is used as overheat and overcurrent protection caused by the fault of rotating motor overload or blocking.

Thermal protectors can also be used for thermal protection of other electrical equipment and electrical components with temperature control requirements, or as thermal signal and thermal sensor.