HCET Bimetallic Thermal Overload Protector 10A-40A for Motors & Compressors
HCET series customizable overload protector utilizes a precision-calibrated bimetallic strip that bends under abnormal current-induced heat. When temperatures exceed the preset threshold (e.g., motor overload or compressor failure), the strip triggers an instant mechanical cutoff (4-10s response) to prevent equipment damage. After cooling, the device auto-resets without manual intervention, ensuring continuous protection.
Product Specifications
| Attribute |
Value |
| Product Name |
HCET Bimetal Thermal Overload Protector |
| Material |
Metal/PBT Case |
| Temperature Range |
30~180℃ |
| Tolerance |
±8℃, ±5℃ |
| Voltage |
30V DC / 250V AC |
| Current |
Customizable |
| Application |
Motors/Compressors |
Key Features & Applications
- Industrial Machinery: Safeguards motors (0.5-30kW), CNC machines, and pumps from burnout
- HVAC Systems: Protects compressors in commercial cooling units and heat pumps
- Renewable Energy: Stabilizes solar inverters and EV charging stations under voltage surges
- Harsh Environments: Operates in -30°C to 200°C for oil rigs, chemical plants, and marine equipment
Electrical Characteristics
Operating Temperature Range
30℃~180℃
Temperature Tolerance
±5°C, ±8℃
Current Tripping Range
1A~45A
| Current/Voltage Rating |
Specification |
| 45A / 15V DC |
15A / 30V DC |
| 25A / 250V AC |
30A / 125V AC |
Dimensions & Technical Drawings
Product Details
Application Examples
