BW-ABS Thermal Protection Switch , Metal / Plastic Case Bimetal Thermal Switch
Price:
0.19 / pieces
MOQ:
1000PCS
Delivery Time:
7 days
Brand:
HENGHAO
Product Description
BW-ABS Thermal Protection Switch
Metal / Plastic Case Bimetal Thermal Switch
Operating Principle and Structure
The BW series thermal protector utilizes a specifically engineered bimetallic strip that responds directly to heating current. Without requiring auxiliary mechanisms, the bimetallic element rapidly changes state when heated, automatically opening or closing contacts to interrupt electrical circuits for reliable overheat and overload protection.
Applications
Widely used in electric motors and electrical equipment including:
- Electric blankets and hot wall systems
- Washer motors and soybean milk machine motors
- Fan motors and air conditioning motors
- Fractional motors and direct current motors
- AC brushless motors and water pumps
- Transformers and rectifiers
- Lighting systems and 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 Options: Metal case and plastic case
- Life Expectancy: ≥10,000 cycles
Dimensions and Models
| 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 for fast response
- Extended life expectancy exceeding 10,000 cycles
- Prevents vacuum impregnation process leaks
- Direct replacement for SENSATA 17AM, 7AM and SEKI ST-22 models
Technical Drawings
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Dongguan Heng Hao Electric Co., Ltd
Location
No.9, five lane, Shangchegang, Shangtang road, Gekeng, Hengli Town, Dongguan City, Guangdong, China
Contact Person
Cherry Lee