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Temperature Controller Thermostat Bimetallic Thermostat Temperature
Protector
The main principle of KSD series thermostat is that one function of
bimetal discs is snap action under the change of sensing
temperature. The snap action of disc can push the action of the
contacts through the inside structure, and then caused on of off
the circuit finally. The main characteristic are the fixation of
working temperature, the reliable snap action, less flashover
longer working life and less radio interference.
KSD304 Temperature Controller Thermostat Bimetallic Thermostat
Temperature Protector
KSD301 thermostat’s specification
Voltage & Current | AC 125V max 15A; AC250V 5A 10A 15A max 16A |
ActionTemperature | 0~250℃ |
Recovery and action temperature difference | 0 to 25 degrees, or according to client's request. |
Temperature deviation: | ±3 / ±5 / ±10 degree or according to client's request |
Circuit resistance | ≤50mΩ (Initial value) |
Insulation resistanc | AC50Hz 1500V / min, no breakdown blinding (Normal State) |
Life cycle | ≥100000 times |
Contact type | Normally closed or Normally open |
Two kinds of mounting bracket | movable or immovable |
Terminal type | a. Terminal type: 187series of 4.8*0.5mm and 4.8*0.8mm, 250 series
of 6.3*0.8mm |
House | plastic or ceramic. |
Temperature sensor face | aluminum cap or copper head. |
KSD301 Difference of auto reset type and Manual reset type
3.1. Manual reset type: Temperature sensing components consist of
bimetallic strip. When the temperature reached the action
temperature range, it will jump quickly and the movable disc
disconnects. When the temperature declines to a fixed temperature
point, the contact point cannot reset until reconnecting the
circuit by pushing the reset button. And then the contact points
recover, reaching a purpose of connecting or disconnecting the
circuit and restarting the circuit by manual reset. (Kindly
reminder: 1.This type of manual reset thermostat can reset when the
temperature declines 20 °C after snap action by pressing the reset
button. And 4~6 N will be advisable; please don’t use too much
strength. 2. To ensure the normal function, the distance between
the reset button and the close cover should not be less than
20.4mm. )
3.2. Manual reset type: Temperature sensing components consist of
bimetallic strip. When the temperature reached the action
temperature range, it will jump quickly and the movable disc
disconnects. When the temperature declines to a fixed temperature
point, the contact point can auto reset and start working.
KSD301 bimetal thermostat’s Application
Open temp. | Reset temp. | Open temp. | Reset temp. | Open temp. | Reset temp. |
-20℃+-5℃ | 5℃+-5℃ | 95℃+-5℃ | 80℃+-5℃ | 205℃+-5℃ | 175℃+-10℃ |
-15℃+-5℃ | 5℃+-5℃ | 100℃+-5℃ | 80℃+-10℃ | 210℃+-5℃ | 180℃+-10℃ |
-10℃+-5℃ | 5℃+-5℃ | 105℃+-5℃ | 85℃+-10℃ | 215℃+-5℃ | 185℃+-10℃ |
0℃+-5℃ | -10℃+-5℃ | 110℃+-5℃ | 90℃+-10℃ | 220℃+-5℃ | 190℃+-10℃ |
5℃+-5C | -5℃+-5℃ | 115℃+-5℃ | 95℃+-10℃ | 225℃+-5℃ | 195℃+-10℃ |
10℃+-5℃ | 0℃+-5℃ | 120℃+-5℃ | 100℃+-10℃ | 230℃+-5℃ | 200℃+-10℃ |
15℃+-5℃ | 5℃+-5℃ | 125℃+-5℃ | 105℃+-10℃ | 235℃+-5℃ | 205℃+-10℃ |
20℃+-5℃ | 5℃+-5℃ | 130℃+-5℃ | 110℃+-10℃ | 240℃+-5℃ | 210℃+-10℃ |
25℃+-5℃ | 10℃+-5℃ | 135℃+-5℃ | 115℃+-10℃ | 245℃+-5℃ | 215℃+-10℃ |
30℃+-5℃ | 15℃+-5℃ | 140℃+-5℃ | 120℃+-10℃ | 250℃+-5℃ | 220℃+-10℃ |
35℃+-5℃ | 20℃+-5℃ | 145℃+-5℃ | 125℃+-10℃ | 255℃+-5℃ | 225℃+-10℃ |
40℃+-5℃ | 25℃+-5℃ | 150℃+-5℃ | 130℃+-10℃ | 260℃+-5℃ | 230℃+-10℃ |
45℃+-5℃ | 30℃+-5℃ | 155℃+-5℃ | 130℃+-10℃ | 265℃+-5℃ | 235℃+-10℃ |
50℃+-5℃ | 35℃+-5℃ | 160℃+-5℃ | 135℃+-10℃ | 270℃+-5℃ | 240℃+-10℃ |
55℃+-5℃ | 40℃+-5℃ | 165℃+-5℃ | 140℃+-10℃ | 275℃+-5℃ | 245℃+-10℃ |
60℃+-5℃ | 45℃+-5℃ | 170℃+-5℃ | 145℃+-10℃ | 280℃+-5℃ | 250℃+-10℃ |
65℃+-5℃ | 50℃+-5℃ | 175℃+-5℃ | 150℃+-10℃ | 285℃+-5℃ | 255℃+-10℃ |
70℃+-5℃ | 55℃+-5℃ | 180℃+-5℃ | 155℃+-10℃ | 290℃+-5℃ | 260℃+-10℃ |
75℃+-5℃ | 60℃+-5℃ | 185℃+-5℃ | 155℃+-10℃ | 295℃+-5℃ | 265℃+-10℃ |
80℃+-5℃ | 65℃+-5℃ | 190℃+-5℃ | 160℃+-10℃ | 300℃+-5℃ | 270℃+-10℃ |
85℃+-5℃ | 70℃+-5℃ | 195℃+-5℃ | 165℃+-10℃ | Or according to client’s request | |
90℃+-5℃ | 75℃+-5℃ | 200℃+-5℃ | 170℃+-10℃ |
The product UL,CQC,TUV and RoHS certification approval.