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9065 Thermal Overload Relay

NEMA Melting Alloy Thermal Overload Relays

The Class 9065 Thermal overload relay is the most commonly used overload relay in the field.

9065 Thermal Overload Relay
  • Features

    Available assembled in Square D Class 8536 starters both non-reversing and reversing as well as in combination starters and multi-speed starters. Along with standalone mounting the melting alloy overload is also used in the Square D Model 6 Motor Control centers.

    • Provides thermal overload protection based on selection and thermal trip curve
    • Available in standard Class 20, as well as Class 10 and Class 30 trip classes (depending on size)
    • Requires deliberate manual operation after they trip to reset the device
    • Also establishes a cool down period so that the motor cannot be restarted until a proper cool down time has been achieved.
    • Includes normally closed trip contact
    • Added accessory provides additional contact (either N.O. or N.C.) for signaling
    • Available in 2 or 3 pole designs for use with single phase or 3-phase applications
    • Thermal unit selection tables available for all applications
    • Exclusive one piece, tamper-proof thermal unit


    • Simple Installation
    • Field interchangeable thermal units for replacement motor installations
    • Thermal protection for the most costly equipment (the motor)
    • Available as direct mount or separate mount


    • Construction
    • Industrial Markets
    • Water/Wastewater
    • HVAC/R
    • Oil/Gas
    • Control Equipment Panels
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