KSD301 16A 250V Snap Disc Thermostat For Water Heater Electric Heat
Kettle
Quick Detail:
| Model | KSD301 |
| Reset Type | Auto Reset |
| Single Pole,Single Throw(SPST) |
| Body Material: | Bakelite or 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:
KSD301 thermal switch’s Principle and structure
The main principle of KSD301 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.
It is widely used in rice cooker, microwave oven, electric water
boiler,room heater, egg boiler and electric steamer,etc.
KSD301 thermal switch’s application
1.Household electric appliances: water dispenser,electric water
pots,toaster,dishwasher,drying machine, disinfection cabinet,
microwave oven, electric kettle, electric caldron,
refrigerator,air-condition,laminator etc.
2. Office equipment
3. Car seat heat, car deicer
KSD301 thermal switch’s specification
1. Electrical Rating: AC 125V max 15A; AC250V 5A 10A 15A max 16A
2. Action Temperature: -10~300 ℃, Temperature accuracy: ±3 ±5 ±10℃.
3. Recovery and action temperature difference:
A. Auto reset: 8 to 100℃(Optional),Temperature accuracy: ±3 ±5 ±10℃.
B. Manual reset
4. Terminal
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
5. Life cycle: ≥100000
6. Dielectric Strength: AC50Hz 1500V / min, no breakdown blinding
(Normal State)
7. Circuit resistance: ≤50mΩ
8. Insulation resistance: ≥100mΩ
9. Normally closed or Normally open
10. Protection degree: IP00
11. Two kinds of body: plastic or ceramic.
12. Temperature sensor face: Aluminum cap or copper head.
13. Holder: without holder, free holder, fixed holder.
Specifications:
1. Dimensional Outline
2. BOM
| No. | Part No. | Part Name | Qty. |
| 1 | KSD301-01 | Body | 1 |
| 2 | KSD301-02 | Guide Frame | 1 |
| 3 | KSD301-03 | Cap | 1 |
| 4 | KSD301-04 | Bimetal Disc | 1 |
| 5 | KSD301-05 | Action Rod | 1 |
| 6 | KSD301-06 | Static Contact Plate | 1 |
| 7 | KSD301-07 | Ø3.5static contact point | 1 |
| 8 | KSD301-08 | Ø3.5moveable contact point | 1 |
| 9 | KSD301-09 | Movable Contact Plate | 1 |
| 10 | KSD301-10 | Short Rivet | 1 |
| 11 | KSD301-11 | Long Rivet | 1 |
| 12 | KSD301-12 | Reset Button | 1 |
| 13 | KSD301-13 | Push Rod | 1 |
| 14 | KSD301-14 | Pressing Plate | 1 |
| 15 | KSD301-15 | Lead Wire | 2 |
| 16 | KSD301-16 | SP 2Y Terminal | 1 |
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℃ |
Competitive Advantages:
1. Mininature size, convenient in installation;
2. Automatic reset
3. Meets or exceeds the most demanding specifications in a variety
of AC and DC applications.
4. Terminals are optional and customized..
5. Contact type: k-Normally open, B-Normally closed
6. High temeprature resistance
7. High reliability, Durable
8. ROHS compliant
9. Wide application
10. No arcing
11. Long life and less disturb to wireless.
Main Applications are as follows:
Automotive diesel oil filtration heating
Heating tube , heating pad
Soybean milk machine, paper shredder, electric kettle
Package:
Installation and Direction for Use:
Method of earth: By means of the metal cup of thermostat 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 thermostat 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 thermostat 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 thermostat’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 thermostat’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:
Thermal Disk Switch, Bimetal Thermostat,Temperature
Switch,Temperature Cutoff Switch, Thermal Cutout Switch
