High Precision Auto Reset Single Pole Single Throw SPST Snap Disc Thermal Switch
Quick Detail:
| Model | KSD301 |
| Reset Type | Auto Reset |
| | Single Pole,Single Throw(SPST) |
| Body Material: | Ceramic |
| Rated Voltage & Current | 250V AC 10A/16A |
| Contact Type | Normally Closed(Open on Rise) or Normally Open(Close on Rise) |
| Operating Temperature Range | 0～150℃ (Bakelite Body),0～250℃ (Ceramic Body) |
| Temperature differentials | 8.5～55℃ (difference between off and on temperatures) |
| Temperature tolerance | ±3.0℃, ±5.0℃, ±8.0℃, ±10.0℃ |
| Contact Resistance | ≤50mΩ |
| Insulation Resistance | ≥100MΩ |
| Dielectric Strength | ≥1500V |
| Life Cycle | 100,000 Cycles |
| Certificate | CQC,TUV,UL,VDE,ROHS,REACH |
Description:
KSD301series snap disc thermal switch is a kind of miniature hermetically sealed bimetal disc thermostat (1/2" disc). It is of single-pole single-throw structure and works under resistive load. This bimetal switch is in wide use in a great variety of compact type home appliances, such as coffee maker, water dispenser, toaster, microwave oven, electric pad and portable icebox etc., to provide temperature control or temperature protection.(cut off thermostat).
Specifications:
1. Dimensional Outline
2. BOM
| No. | Part No. | Part Name | Material | Qty. |
| 1 | KSD301-01 | Body | Ceramic | 1 |
| 2 | KSD301-02 | Guide Frame | Ceramic | 1 |
| 3 | KSD301-03 | Cover | Aluminium(A1) | 1 |
| 4 | KSD301-04 | Bimetal Disc | Bimetal | 1 |
| 5 | KSD301-05 | Action Rod | Ceramic | 1 |
| 6 | KSD301-06 | Static Contact Plate | Brass | 1 |
| 7 | KSD301-07 | Ø3.5 static contact point | AgCd012/Cu | 1 |
| 8 | KSD301-08 | Ø3.5 moveable contact point | AgCd012/Cu | 1 |
| 9 | KSD301-09 | Movable Contact Plate | BeCu | 1 |
| 10 | KSD301-10 | Short Rivet | Red Copper | 1 |
| 11 | KSD301-11 | Long Rivet | Red Copper | 1 |
| 12 | KSD301-12 | 6.3*0.8 Vertical Terminal | Brass | 2 |
3. Action Temperature Table
| Standard Temperature Sheet |
| KSD301 |
| Action Temperature | Reset Temperature | Action Temperature | Reset Temperature |
| 45±3℃ | 35±5℃ | 145±5℃ | 125±7℃ |
| 50±3℃ | 40±5℃ | 150±5℃ | 130±7℃ |
| 55±3℃ | 45±5℃ | 155±5℃ | 135±7℃ |
| 60±3℃ | 50±5℃ | 160±5℃ | 140±8℃ |
| 65±3℃ | 50±5℃ | 165±6℃ | 145±8℃ |
| 70±3℃ | 55±5℃ | 170±6℃ | 150±8℃ |
| 75±3℃ | 60±5℃ | 175±6℃ | 155±8℃ |
| 80±3℃ | 65±5℃ | 180±7℃ | 160±10℃ |
| 85±3℃ | 70±5℃ | 185±7℃ | 155±10℃ |
| 90±3℃ | 75±5℃ | 190±7℃ | 160±10℃ |
| 95±3℃ | 80±5℃ | 195±7℃ | 165±10℃ |
| 100±4℃ | 85±6℃ | 200±8℃ | 170±10℃ |
| 105±4℃ | 85±6℃ | 205±8℃ | 175±10℃ |
| 110±4℃ | 90±6℃ | 210±8℃ | 180±10℃ |
| 115±5℃ | 95±6℃ | 215±10℃ | 185±10℃ |
| 120±5℃ | 100±6℃ | 220±10℃ | 190±10℃ |
| 125±5℃ | 105±6℃ | 230±10℃ | 200±10℃ |
| 130±5℃ | 110±6℃ | 240±10℃ | 205±12℃ |
| 135±5℃ | 115±6℃ | 250±10℃ | 210±15℃ |
| 140±5℃ | 120±7℃ | | |
| Remark : |
| 0-60℃±5℃: Reset Temperature=Action Temperature-10℃ |
| 60-120℃±5℃: Reset Temperature=Action Temperature-15℃ |
| 120-160℃±5℃: Reset Temperature=Action Temperature-20℃ |
| 160-200℃±7℃: Reset Temperature=Action Temperature-25℃ |
| 200-250℃(±8℃-10℃): Reset Temperature=Action Temperature-30℃/40℃ |
Applications:
● Kitchen Appliances: Rice Cooker, Microwave Oven, Oven, Fryer, Egg Boiler, Electric Steamer, Vacuum Cleaner, etc.
● Household Appliances: Electric Water Boiler, Room Heater,Waffle Baker etc.
● Other Industry: Medical Equipement, Air Compressor, Batter Packs, etc.
Competitive Advantages:
1. Easy mounting.
2. Rapid heat transmission.
3. High durability.
4. No breakdown, no flashover.
5. Every product will be tested, extremely high temperature pass rate.
6. High precision.
Installation and Direction for Use:
Method of earth: By means of the metal cup of thermal switch connected in the earthing metal part.
The thermostat should work in environment with humidity not higher than 90%, free of caustic, flammable gas and conducting dust.
When the thermal switch is used to sense the temperature of solid items, its cover should be clung to the heating part of such items. Meanwhile, heat-conducting silicon grease, or other heat media of similar nature, should be applied to the cover’s surface.
If the thermal switch is used to sense the temperature of liquids or steam, it is strongly recommended to adopt a version with stainless-steeled cup. Moreover, cautious measures should be taken to prevent liquids getting into/onto the thermal switch’s insulation parts.
The top of the cup must not be pressed to sink, so as to avoid adverse effect on the thermostat’s temperature sensitivity or its other functions.
Liquids must be kept out of the thermal switch’s inner part! The base must avid any force that could lead to crack; it should be kept clear and away from the pollution of electric substance to prevent insulation weakening that leads to short-circuited damages.
The terminals should be bent, or else, the reliability of electric connection will be influenced.
Tag:
Temperature Switch KSD301, Snap-action Thermostat, Snap Action Temperature Switch, Snap Action Bimetal Disc Thermostat,
Bimetal Disc Thermal Switch, Automatic Thermal Switch, Temperature Controller, Temperature Switch
