Normally Open 250V 80 Deg C KSD9700 Bimetal Thermal Protector for
Cooling System
Quick Detail:
| Model | K9700 |
| Reset Type | Auto Reset |
| Single Pole,Single Throw(SPST) |
| Case Material: | Plastic or Metal |
| Rated Voltage & Current | 250V AC 5A/10A |
| Contact Type | Normally Closed(Open on Rise) or Normally Open(Close on Rise) |
| Operating Temperature Range | 45～150℃ |
| Temperature tolerance | ±5.0℃ |
| Contact Resistance | ≤50mΩ |
| Insulation Resistance | ≥100MΩ |
| Dielectric Strength | ≥1500V |
| Life Cycle | 10,000 Cycles |
| Certificate | CQC,TUV,UL,VDE,ROHS,REACH |
Description:
KSD9700 type bimetal thermal protector is using a special shape of
double metal piece without auxiliary mechanism. The status of metal
piece has the fast change is only depended on the self temperature
sensing of the metal piece and the current thermal reaction. It
makes the contact realize the cut off the power automatically and
get through the power. The over heating protection and overload
protection will be raised. KSD9700 type thermal protector can be
applied for transformers; battery; lighting electrics; cleaning
machine; water pump; electric tools; electric heating pad; and the
household appliances.
Work Principle:
KSD9700 typebimetal thermal protector is using the double metal
piece as e temperature sensing element. When the electrics work
normally, the double piece is at the free status, the contact is at
close/break off position. When the temperature rises to the action
temperature, the double metal piece acts fast by the inside force
caused by heating, open/close the contact, cut off/get through the
power, the temperature protection function is raised. When the
temperature lows to the reset temperature, the contact
closes/breaks off automatically and recovery to normal work status.
Specifications:
1. Dimensional Outline
2. Structural Drawing
| Plastic Case Type | Metal Case Type |
1. Lead wire
2. Epoxy Resin 3. Stationary Contact Plate
4. Movable Contact 5. Movable Spring Plate
6. Bimetallic Strip 7. Plastic Case 8. Insulation Block 9. Baseplate | 
1. Lead 2.Epoxy Resin 3. Stationary Contact Plate 4. Movable Contact 5. Movable Spring Plate 6. Bimetallic Strip 7. Metal Case 8. Insulation Block 9. Baseplate 10. Insulating Tube |
|
 |
3. Action Temperature Table
| KSD9700 |
|
| Action Temperature | Reset Temperature | Action Temperature | Reset Temperature |
| 40±5℃ | ≥27℃ | 110±5℃ | 73±15℃ |
| 45±5℃ | ≥27℃ | 110±5℃ | 73±15℃ |
| 50±5℃ | ≥30℃ | 115±5℃ | 76±15℃ |
| 55±5℃ | ≥30℃ | 120±5℃ | 80±15℃ |
| 60±5℃ | 40±15℃ | 125±5℃ | 83±15℃ |
| 65±5℃ | 43±15℃ | 130±5℃ | 86±15℃ |
| 70±5℃ | 46±15℃ | 135±5℃ | 90±15℃ |
| 75±5℃ | 50±15℃ | 140±5℃ | 93±15℃ |
| 80±5℃ | 53±15℃ | 145±5℃ | 96±15℃ |
| 85±5℃ | 56±15℃ | 150±5℃ | 100±15℃ |
| 90±5℃ | 60±15℃ | | |
| 95±5℃ | 63±15℃ | | |
| 100±5℃ | 67±15℃ | | |
| 105±5℃ | 70±15℃ | | |
| Remark : |
| Reset Temperature: 2/3 of Action Temperature, tolerance is±15℃ or
customized. |
Applications:
1. Shaded Pole Motor
2. Permanent split capacitor motor
3. Fluorescent lighting ballasts
4. HID ballasts
5. Transformer
6. Recessed lighting fixtures
7. Battery packs
8. Vacuum cleaners
9. Automotive accessory motors, solenoids, PC boards
Competitive Advantages:
1. Miniature size and easy to install
2. Positive make and break with snap-action disc
3. High sensitivity, High stability
4. Low contact resistance
5. Life cycles more than 10,000 times
6. ROHS compliant
7. Wide application
8. Anti-vacuum dipping process, can be dipped with the motor
9. There are two types of normally closed and normally open can
meet customers' different requirements
10. The length and specifications of lead wire can be customized
Tag:
Temperature Protection Switch,Overlheat Protector, Motor Protector, Temperature Switch, Thermal Cutoff Switch
