
17AM + PTC type thermal protector
Key Features and Benefits
Enhanced Protection: The combination of bimetallic sensing and PTC heating ensures reliable protection against both thermal and electrical overloads.
Compact Design: The small size and lightweight design make it easy to integrate into various applications.
Reliable Operation: The snap-action mechanism provides precise and consistent tripping.
Wide Range of Applications: Suitable for a variety of electrical appliances, including transformers, batteries, lighting fixtures, cleaning machines, water pumps, electric tools, heating pads, and household appliances.
Voltage Ratings:
AC 125V/16A
AC 230V/8A
DC 16V/20A
Tripping Temperature Range: 50°C to 180°C
Temperature Tolerance: ±5°C or ±8°C
Working Principle
Thermal Sensing:
The bimetallic disc within the protector senses both heat and current.
When the temperature or current exceeds a predetermined threshold, the disc snaps open, interrupting the power supply.
PTC Heating Element Activation:
The act of breaking the circuit triggers the PTC heating element.
This element generates heat, maintaining the protector in the tripped state even after the initial overheating event has subsided.
Manual Reset:
The protector remains in the tripped state until the power supply is manually interrupted and the device cools down.
Once the temperature returns to normal, the bimetallic disc resets, allowing the power supply to resume.

As China 17AM + PTC type thermal protector Suppliers and Custom 17AM + PTC type thermal protector Company,The company has a strong ability to develop, produce, and test. We have invested a lot in researching and developing new products by introducing abroad new and advanced technology, such as the automatic production line from Japan. The management system is strictly carried out according to the ISO9001. Our vision is to pursue excellence, develop the Yitong brand, obey integrity, and meet the requests of the customers. Intensify the quality monitoring and management, and proceed with normalized and standardization management. Construct the company culture and strengthen the core competitiveness.

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