KSD301 snap-on thermostat (automatic reset)

Product parameters

Structure and application

The KSD301 series is a thermostat with a bimetal as a temperature sensing element. When the appliance is working normally, the bimetal is in a free state, the contacts are in a closed/open state, and when the temperature reaches the operating temperature, the bimetal The internal stress caused by heat generates rapid action, opens/closes the contact, and cuts/closes the circuit, thereby controlling the temperature. When the appliance cools to the reset temperature, the contacts automatically close/open and return to normal operation. Widely used in household water dispensers and electric boiling water bottles, disinfection cabinets, microwave ovens, electric coffee makers, rice cookers, air conditioners, glue machines and other electric appliances. It has the characteristics of stable performance, high precision, small size, light weight, high reliability, long life and low radio interference.

Attention

◆ When using contact temperature sensing, the metal cover should be close to the mounting surface of the controlled appliance. To ensure the temperature sensing effect, the temperature sensitive surface should be coated with thermal grease or other similar heat transfer medium.

◆ Do not crush, loosen or deform the top of the cover during installation to avoid affecting performance.

◆ Do not allow liquid to penetrate into the temperature control unit. Do not crack the outer casing. Do not change the shape of the external terminal.

◆ The product should be used in a circuit with a current of no more than 5A. The copper core should be connected with a 0.5-1mm2 wire. If the circuit is not more than 10A, the copper core should be 0.75-1.5mm2.

◆ The product should be stored in a warehouse with relative humidity less than 90%, ambient temperature below 40 °C, ventilated, clean, dry, dry, non-corrosive.

Technical parameters / Technical parameters

◆ Electrical parameters: VDE, CQC, UL, TüV AC250V 50∽60Hz 10A (resistive load); UL AC125V 50∽60Hz 15A (resistive load)

◆ Operating temperature range: 0∽210°C (optional), temperature accuracy: ±(2∽5%)°C

◆ Reset and operating temperature difference: 3-100 °C (optional);

◆ Wiring method: connector terminal 250# (bend 0∽90°C optional); connector terminal 187# (bend 0∽90°C optional, thickness 0.5, 0.8mm optional);

◆ Service life: VDE, UL, 100,000 times; CQC, TÜV 10,000 times

◆ Electrical strength: AC1500V lasts 1min, no flicker, no breakdown;

◆ Contact resistance: ≤50 mΩ; Insulation resistance: >100 MΩ;

◆ Contact form: Normally closed type: the temperature rises, the contact is disconnected, the temperature drops, and the contact is turned on;

◆ Normally open type: the temperature rises, the contacts are connected, the temperature drops, and the contacts are disconnected;

◆ Shell protection grade: IP00;

◆ Grounding method: Connect to the grounding metal parts of the device through the metal shell of the thermostat.

◆ Installation method: KSD301 series installs ordinary movable ring, installs small round movable ring, installs flat movable ring, with ordinary large aluminum cover with mounting hole, and long aluminum cover with mounting hole;

 In Common use temperature specifications


                 Code Scope of action temperature  Reset of temperature

              Code

Scope of action temperature Reset of temperature
30 30±3℃ ≥15℃ 125 125±3℃ 110±5℃
35 35±3℃ 20±5℃ 130 130±3℃ 115±5℃
40 40±3℃ 25±5℃ 135 135±3℃ 120±5℃
45 45±3℃ 30±5℃ 140 140±3℃ 125±5℃
50 50±3℃ 35±5℃ 145 145±3℃ 130±5℃
55 55±3℃ 40±5℃ 150 150±3℃ 135±5℃
60 60±3℃ 45±5℃ 155 155±3℃ 140±5℃
65 65±3℃ 50±5℃ 160 160±3℃ 145±5℃
70 70±3℃ 55±5℃ 165 165±4℃ 150±5℃
75 75±3℃ 60±5℃ 170 170±4℃ 155±5℃
80 80±3℃ 65±5℃ 175 175±4℃ 160±5℃
85 85±3℃ 70±5℃ 180 180±4℃ 165±5℃
90 90±3℃ 75±5℃ 185 185±4℃ 170±5℃
95 95±3℃ 80±5℃ 190 190±5℃ 175±5℃
100 100±3℃ 85±5℃ 195 195±5℃ 180±5℃
105 105±3℃ 90±5℃ 200 200±5℃ 185±5℃
110 110±3℃ 95±5℃ 205 205±5℃ 190±5℃
115 115±3℃ 100±5℃ 210 210±5℃ 105±5℃
120 120±3℃ 105±5℃