KSD301 Bimetal Sensor Thermal Switch, Custom Bimetal Sensor Thermostat

The KSD301 125v / 250v 16 Amp Series Auto / Manual Reset Bimetal temperature control Thermostat is specifically designed for appliances with over-heat protection and prevention of excessive temperature rise. It can be customized sensor thermal switch to Auto reset below the low temperature of -35 °C~280 °C, or Manual reset. It can be used in the appliance with excessive temperature protection such as toasters, oven, Water heater, copy machine sand printers to name a few.

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1. KSD301 temperature protector’s Principle and structure
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.

2. KSD301 bimetal thermostat’s specification
2.1. 電氣額定值: AC 125V max 15A; 交流250V 5A 10A 15A最大16A
2.2. 動作溫度: -10~300 degree
2.3. Recovery and action temperature difference: 10 自 25 degrees, 或根據客戶要求.
2.4. Temperature deviation: +-3 / +-5 / +-10 degree or according to client’s request
2.5. Circuit resistance: ≤50毫ω (Initial value)
2.6. 絕緣電阻: ≥100mΩ (DC500V Normal State)
2.7. 介電強度: AC50Hz 1500V / min, no breakdown blinding (正常狀態)
Life cycle: ≥100000
2.8. Normally closed or open
2.9. Two kinds of mounting bracket: movable or immovable
2.10. 終端
a. Terminal type: 187series of 4.8*0.5mm and 4.8*0.8mm, 250 series of 6.3*0.8mm
b. Terminal Angle: bending angle: 0~90°C optional
2.11. Two kinds of body: plastic or ceramic.
2.12. Two kinds of temperature sensor face: aluminium cap or copper head.

3. Difference of bimetal thermostat 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
It is used as temperature control for household electric appliances and widely applied in coffee pots, automatic toasters, 層壓機, electric water pots, steam guns, steam irons, wind warmers, 微波爐, 飲水機, 等.

KSD301 bimetal thermostat’s Open temperature & 重置溫度
1. According to customer’s request to set the open temperature and reset temperature.
2. The standard open temperature and reset temperature’s sheet for auto reset type as below

The product UL,CQC質素控制,VDE and RoHS certification approval.