Small Size BK05-BB5D Thermal Cutoff Switch for Balance Car Battery Pack Board
Quick Detail:
| Model | BK05-BB5D |
| Reset Type | Auto Reset |
| | Single Pole,Single Throw(SPST) |
| Case Material: | Plastic or Metal |
| Rated Voltage & Current | DC12V/12A DC24V/10A,AC125V/8A AC250V/5A |
| Contact Type | Normally Closed(Open on Rise) or Normally Open(Close on Rise) |
| Operating Temperature Range | 30～155℃ |
| Temperature tolerance | ±3/±5℃ |
| Contact Resistance | ≤50mΩ |
| Insulation Resistance | ≥100MΩ |
| Dielectric Strength | ≥1500V |
| Life Cycle | 10,000 Cycles |
| Certificate | CQC,TUV,UL,VDE,ROHS,REACH |
Description:
BK05-BB5D bimetal thermal protector uses high sensitive disk-shaped bimetal strip as the temperature-sensing element. It is composed of bimetal strip, moveable contact, stationary contact piece, fixed base, moveable spring piece, case and temperature resistance lead wire.The bimetal strip is fixed on the base, which can maintain the consistency of disconnection and reset temperature after long-term use. Its' main function is overheating, overload protection.
Working principle: when the temperature rises to a certain value, the bimetal strip will instantly jump off and the contact will move quickly to disconnect the circuit. When the temperature falls to a certain value, the bimetal strip will be reset and the contact will return to the original state to achieve the purpose of switching the circuit. Its light weight, compact design maintains the lightweight, sealed housing of the whole device, and is resistant to drying, maintaining the accuracy and high reliability of disconnection and reset throughout its life.
Product features: BK05-BB5D theraml cutoff switch is a temperature control switch developed by imported thermal bimetal, with small size, rapid action, accurate temperature control and long life cycle.
BK05-BB5D Thermal Cutoff Switch,Thermal Protectors
Optional:
Normally Open (NO)
Normally Closed (NC)
Temperature: 15°C to 155°C
Model BK05-BB5D
Max voltage 250V
Max current 5A
Dimensions 18 x 7 x 4mm
Wires length 70mm
Normally closed thermal switch means that the contacts of thermal switch normally remain closed. When temperature increases to the set value, the contacts would open and cut the circuit OFF.
Normally open thermal switch means that the contacts of thermal switch normally remain open. When temperature rises, the contacts would close and connect the circuit ON.
Specifications:
1. Dimensional Outline
2. Structural Drawing
| No. | Part Name | Material | Qty |
| 1 | Lead wire | 0.75mm² black silicon wire | 2 |
| 2 | Sealing | Epoxy resin | A few |
| 3 | Insulation blcok | Ceramic | 1 |
| 4 | Moveable contact | AgNi10/Cu | 1 |
| 5 | Moveable spring piece | Beryllium bronze | 1 |
| 6 | Case | Plastic | 1 |
| 7 | Stationary Contact piece | AgNi10/Cu | 1 |
| 8 | Base | Brass H62 | 1 |
| 9 | Bimetal strip | BR-1 | 1 |
3. Action Temperature Table
| No. | Action Temperature | Reset Temperature | No. | Action Temperature | Reset Temperature |
| 30 | 30±3℃ | ≥20℃ | 95 | 95±5℃ | 70±15℃ |
| 35 | 35±3.5℃ | ≥25℃ | 100 | 100±5℃ | 70±15℃ |
| 40 | 40±4℃ | ≥30℃ | 105 | 105±5℃ | 75±15℃ |
| 45 | 45±4.5℃ | ≥33℃ | 110 | 110±5℃ | 75±15℃ |
| 50 | 50±5℃ | ≥35℃ | 115 | 115±5℃ | 80±15℃ |
| 55 | 55±5℃ | 42±6℃ | 120 | 120±5℃ | 85±15℃ |
| 60 | 60±5℃ | 45±8℃ | 125 | 125±5℃ | 85±15℃ |
| 65 | 65±5℃ | 48±10℃ | 130 | 130±5℃ | 90±15℃ |
| 70 | 70±5℃ | 50±12℃ | 135 | 135±5℃ | 95±15℃ |
| 75 | 75±5℃ | 53±14℃ | 140 | 140±5℃ | 100±15℃ |
| 80 | 80±5℃ | 55±15℃ | 145 | 145±5℃ | 100±15℃ |
| 85 | 85±5℃ | 60±15℃ | 150 | 150±5℃ | 105±15℃ |
| 90 | 90±5℃ | 65±15℃ | 155 | 155±5℃ | 110±15℃ |
Applications:
1. Coils
2. Fans
3. Blower
4. Compressor
5. Pump
6. Ballast
7. Fractional horsepower motors
8. Small power transformers
9. Household appliances
10. Computer communication equipment
11. Air conditioner motors
12. Vacuum cleaners
13. Electric stove
14. Electric heater
15. Soybean milk machine
16. Electric heating belt
17. Health care equipment
Competitive Advantages:
1. Fast temperature sensing
2. Accurate temperature control
3. Large control current
4. Low contact resistance
5. Safe and reliable
6. Small size, easy to install
7. No arc discharge
8. Long life cylces more than 10,000 times
9. Anti-vacuum dipping process, can be dipped with the motor
10. There are two types of normally closed and normally open can meet customers' different requirements
11. The length and specifications of lead wire can be customized
12. Substitute SENSATA 7AM,17AM,SEKI St22 series
Use notice:
1.This product is not suitable for heat in the air, only applies to contact heat!
(available binding wire, iron wire, fixed or 704 silicone rubber for fixed)
2. Metal shell case charged, work is not suitable for the water.
3. When installation, the temperature control switch shall be clingy was charged with the installation of the equipment surface.
Tag:
Bimetal Thermal Switch, Temeprature Cutout Switch, Thermal Cut-off Switch, Overheat Protector
Product Tags:
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Small Size BK05-BB5D Thermostat Cut Off Switch For Balance Car Battery Pack Board Images
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