Product descriptions

The bimetal discs will result in snap action to cut off circuit when temperature increase dues to equipment abnormal working condition. When temperature drops to normal bimetal discs will back to original position, circuit was connected again. Equipment resume to normal work condition again.

SM22 series product size dimensions

SM22 current trip curve drawing and environment temperature compensation coefficients

Silver plated copper: silver contact, copper pin, full current

Flame retardant shell: high strength, high temperature resistance and corrosion resistance

Product Application

Over load switch is applied in electrical appliances including gasoline generators, power strip, UPS, air compressors, stroller, electric cars, water pumps, vehicle jumper starter , range hoods, electric tools, power distribution unit, power drive unit (PDU),treadmill, juicer, ice blender, bar mixer, squeezer milk shaker, ice shaver, soya bean milk maker etc white home electrical appliance.

There Are Four Types Of Overload Protection

1. Mechanical overload protection realizes overload protection through a mechanical switch connected to the lifting mechanism.For example, when the overload causes excessive tension on the wire rope anchor end of the hoist, the spring in the device will collapse, thus reversing the switch to cut off the electrical circuit and stop the lifting operation.

2. Electronic overload protection realizes overload protection through the current generated by the induction motor. When the current generated is too large, the lifting operation will be stopped.

3. The device with electronic/mechanical double overload protection is equipped with sensitive sensors, which can detect the slight deformation caused by the load and adjust the voltage according to the deviation.

4. The loop chain hoist overload protection device adopts the sliding clutch principle, just like a car in neutral.When overloading is detected and the torque is too high, the device automatically disconnects (the motor idles) and stops the lifting operation.

It should be noted that all four types of overload p

Company Profile

Changsha Cohina Intelligent Technology Co.,Ltd specializes in thermal current overload protector. The company has ISO9001 quality system certification, CCC certification, UL certification, CSA certification in Canada, TUV certification in Germany, CE certification in EU, RoHS and reach international environmental protection certification. The company with reliable quality, competitive price, perfect and thoughtful after-sales service, wholeheartedly cooperate and win-win for customers!

http://www.cohinacontrol.com/