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ST01 H Thermal Protector for Thermal Management

Featured Product from Saftty Electronic Technology Co., Limited

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The ST01 H thermal protector is engineered to provide dependable overtemperature protection for various applications. With a power class range from 1.6 A to 10 A, this device features a normally closed operation that does not reset automatically, ensuring that it protects against overheating reliably. The protector is equipped with connector cables and uses Mylar-Nomex insulation to withstand high temperatures and provide stable performance.

Detailed Description:

Key Features:

  • Power Class Range:
    Suitable for applications requiring protection in the 1.6 A to 10 A range, offering flexibility for various needs.

  • Normally Closed Operation:
    The ST01 H operates with a normally closed contact that opens when the temperature exceeds the rated threshold, providing a fail-safe mechanism.

  • Non-Automatic Reset:
    Designed to remain open until manually reset, ensuring that once triggered, the device must be deliberately re-engaged to resume operation, enhancing safety.

  • Connector Cables:
    Comes with integrated connector cables for easy installation and reliable electrical connections.

  • Mylar-Nomex Insulation:
    Uses high-performance Mylar-Nomex insulation to handle high temperatures and maintain consistent performance.

Construction:

  • Ceramic Cover Plate:
    Houses the stationary silver contact, providing durability and insulation.

  • Stationary Silver Contact:
    Riveted to the ceramic cover plate, it ensures stable electrical connections.

  • Spring Disc:
    A cross-shaped spring disc is welded to the movable contact and connected to the housing, enabling precise temperature control.

  • Movable Contact:
    Welded to the spring disc, it moves to open or close the circuit based on temperature changes.

  • Conductive Housing:
    Provides a robust structure and path for current flow.

  • Bimetal Disc:
    Deforms with heat to actuate the protector, pushing the spring disc and breaking the circuit when the rated temperature is reached.

Functionality:

  • Normal Operation:
    Under normal conditions, the movable contact remains in close contact with the stationary silver contact due to the pre-pressure of the spring disc.

  • Overtemperature Response:
    Upon reaching the rated temperature, the bimetal disc deforms and pushes the spring disc downwards, causing the movable contact to open abruptly. This action disrupts the current flow and protects the device from overheating.

  • Automatic Reset:
    As the ambient temperature falls, the bimetal disc and spring disc return to their original positions, closing the contacts and restoring the circuit's conduction state once the temperature drops below the defined reset point.

The ST01 H thermal protector is essential for safeguarding electrical devices from overheating. Its robust construction and reliable operation make it ideal for various applications requiring precise thermal protection. Contact us for more information or to place an order!