According to the temperature change of the working environment, physical deformation occurs inside the switch, thus producing some special effects, producing a series of automatic control elements for conducting or disconnecting action, called temperature switches, also called temperature protectors or temperature controllers, referred to as thermostats. Or use the over-protector to transmit the temperature to the temperature controller, the temperature controller issued a switch command, so as to control the operation of the equipment to achieve the desired temperature and energy-saving effect.
As the use of butterfly-shaped bimetal as a temperature sensor components, the temperature controller works as follows: when the temperature rises, the butterfly will produce a corresponding deformation, and when the temperature reaches the value of the butterfly deformation, the butterfly sudden jump relying on the mechanical drive of other devices, so that the contacts quickly act to turn on or cut off the current.
Normally closed.
Temperature switch original state contacts are closed, when the sensed temperature exceeds the rated temperature contacts open.
Normally open.
Temperature switch original state contact is open, when the sensing temperature exceeds the rated temperature contact is closed.
Working voltage:250V
Overload current:10A
Operation temperature: 0°℃~300°℃
Body material: bakelite, ceramic
Operation temperature accuracy:±3/5
Contact life: more than 50000 times (action times)
Contact resistance: less than 100m
Insulation resistance: more than 100m (DC500V ohm meter)
Heat resistance: operation temperature +35°C
Electrical strength:AC50Hz, 2000V/min without breakdown and arc pulling
Normally closed: temperature control switch is in working condition (access), more than temperature control temperature jump off (disconnect), not working, such as electric kettle
Normally open: not more than the temperature control temperature is open circuit (not working state), more than the temperature to start working!