Normally closed: Temperature control switches are in working state (access), jump off (off) when the temperature exceeds the temperature control, such as an electric kettle.
Normally open:No temperature exceeding the temperature is open (not working).
Product Name: sudden jump temperature control switch
Product model: KSD301
Bulk material: Iron Ceramics
Switch type: normally closed
Working voltage: 110V 250V
Overload current: 10A
Life: 50000 times