Efficient Motor Thermal Overload Switch / Thermo Switch Protector For Floor Heating
Efficient Motor Thermal Overload Switch / Thermo Switch Protector For Floor Heating The BW series thermal protector is designed for reliable overheating and overload protection in various electrical applications including floor heating systems. Principle and Structure The BW series thermal protector utilizes a geometrically designed bimetallic strip that directly senses heating current. Without auxiliary mechanisms, the bimetallic element rapidly changes state to automaticall
Place of Origin
China
Contact type
normally closed or normally open
Packaging Details
1000pcs per carton
Voltage & Curren
250V 16A
Model Number
BW9700
Supply Ability
100000000pcs per month
Product Description
Efficient Motor Thermal Overload Switch / Thermo Switch Protector For Floor Heating
The BW series thermal protector is designed for reliable overheating and overload protection in various electrical applications including floor heating systems.
Principle and Structure
The BW series thermal protector utilizes a geometrically designed bimetallic strip that directly senses heating current. Without auxiliary mechanisms, the bimetallic element rapidly changes state to automatically cut the circuit, providing reliable overheat and overload protection.
Applications
Widely applied in electric motors and electrical equipment including:
- Electric blanket and hot wall systems
- Washer motor, soybean milk machine motor
- Fan motor, air conditioner motor
- Fractional motor, direct current motor, AC brushless motor
- Water pump, transformer, rectifier
- Lighting systems, rechargeable batteries
- Various electric heating appliances
Technical Specifications
- Contact type: Normally closed and Normally open
- Electrical rating: 10A/AC120V; 8A/AC250V; 10A/AC250V; 16A/AC250V
- Circuit resistance: ≤50mΩ (Initial value)
- Insulation resistance: ≥100mΩ
- Action temperature range: 40~150℃
- Case: Metal case and plastic case options
- Life: ≥10,000 cycles
Dimensions
| Model | L(mm) | W(mm) | H(mm) | Electrical Rating | Lead Wire (mm) |
|---|---|---|---|---|---|
| BW metal | 20 | 7.5 | 3.8 | 5A/250V;10A/250V | AWG#22,AWG#18 high temperature silicone wire L1=L2=70mm, or custom requirements |
| BW metal | 20 | 8.0 | 4.1 | 16A/250V | AWG#22,AWG#18 high temperature silicone wire L1=L2=70mm, or custom requirements |
| BW plastic | 20 | 8.0 | 4.0 | 5A/250V;10A/250V | AWG#22,AWG#18 high temperature silicone wire L1=L2=70mm, or custom requirements |
Temperature Specifications
| Code | Open Temp. | Reset Temp. | Code | Open Temp. | Reset Temp. |
|---|---|---|---|---|---|
| 40 | 40℃±5℃ | ≥30℃ | 100 | 100℃±5℃ | 70±10℃ |
| 45 | 45℃±5℃ | ≥30℃ | 105 | 105℃±5℃ | 70±12℃ |
| 50 | 50℃±5℃ | ≥30℃ | 110 | 110℃±5℃ | 75±12℃ |
| 55 | 55℃±5℃ | ≥30℃ | 115 | 115℃±5℃ | 80±12℃ |
| 60 | 60℃±5℃ | 40±10℃ | 120 | 120℃±5℃ | 85±12℃ |
| 65 | 65℃±5℃ | 45±10℃ | 125 | 125℃±5℃ | 90±12℃ |
| 70 | 70℃±5℃ | 50±10℃ | 130 | 130℃±5℃ | 95±12℃ |
| 75 | 75℃±5℃ | 55±10℃ | 135 | 135℃±5℃ | 100±12℃ |
| 80 | 80℃±5℃ | 60±10℃ | 140 | 140℃±5℃ | 105±12℃ |
| 85 | 85℃±5℃ | 65±10℃ | 145 | 145℃±5℃ | 110±12℃ |
| 90 | 90℃±5℃ | 70±10℃ | 150 | 150℃±5℃ | 115±12℃ |
| 95 | 95℃±5℃ | 75±10℃ |
Competitive Advantages
- Compact size for easy installation
- Quick-acting bimetallic strip with fast response
- Long service life exceeding 10,000 cycles
- Prevents vacuum impregnation process leaks
- Compatible replacement for SENSATA 17AM, 7AM and SEKI ST-22 models
Technical Drawings
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