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**Free UPS Ground Shipping** on all New Surplus and Reconditioned items over $300!! | sales@breakerhunters.com | 877-963-4543
**Free UPS Ground Shipping** on all New Surplus and Reconditioned items over $300!! | sales@breakerhunters.com | 877-963-4543

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M Frame Thermal Magnetic Trip Units

  • MT3300T Trip Unit, M Frame Style, Thermal-Magnetic, 300 Ampere at 40 Degree Celsius, 3 Pole, Magnetic Trip Adjustment at 5-10 Times Continuous Ampere Rating, For Use in Molded Case Circuit Breakers With Optional Interchangeable Trip Units. New Surplus and Certified Reconditioned with 1 Year Warranty.

    MT3300T

    Eaton / Cutler Hammer

    M-Frame Style Trip Unit Look under Parts & Accessories or follow the links below to order accessories used to create additional configurations ...

    View full details
  • MT3350T Trip Unit, M Frame Style, Thermal-Magnetic, 350 Ampere at 40 Degree Celsius, 3 Pole, Magnetic Trip Adjustment at 5-10 Times Continuous Ampere Rating, For Use in Molded Case Circuit Breakers With Optional Interchangeable Trip Units. New Surplus and Certified Reconditioned with 1 Year Warranty.

    MT3350T

    Eaton / Cutler Hammer

    M-Frame Style Trip Unit Look under Parts & Accessories or follow the links below to order accessories used to create additional configurations ...

    View full details
  • MT3400T Trip Unit, M Frame Style, Thermal-Magnetic, 400 Ampere at 40 Degree Celsius, 3 Pole, Magnetic Trip Adjustment at 5-10 Times Continuous Ampere Rating, For Use in Molded Case Circuit Breakers With Optional Interchangeable Trip Units. New Surplus and Certified Reconditioned with 1 Year Warranty.

    MT3400T

    Eaton / Cutler Hammer

    M-Frame Style Trip Unit Look under Parts & Accessories or follow the links below to order accessories used to create additional configurations ...

    View full details
  • MT3450T Trip Unit, M Frame Style, Thermal-Magnetic, 450 Ampere at 40 Degree Celsius, 3 Pole, Magnetic Trip Adjustment at 5-10 Times Continuous Ampere Rating, For Use in Molded Case Circuit Breakers With Optional Interchangeable Trip Units. New Surplus and Certified Reconditioned with 1 Year Warranty.
    Call for Price

    MT3450T

    Eaton / Cutler Hammer

    M-Frame Style Trip Unit Look under Parts & Accessories or follow the links below to order accessories used to create additional configurations ...

    View full details
    Call for Price
  • MT3500T Trip Unit, M Frame Style, Thermal-Magnetic, 500 Ampere at 40 Degree Celsius, 3 Pole, Magnetic Trip Adjustment at 5-10 Times Continuous Ampere Rating, For Use in Molded Case Circuit Breakers With Optional Interchangeable Trip Units. New Surplus and Certified Reconditioned with 1 Year Warranty.

    MT3500T

    Eaton / Cutler Hammer

    M-Frame Style Trip Unit Look under Parts & Accessories or follow the links below to order accessories used to create additional configurations ...

    View full details
  • MT3600T Trip Unit, M Frame Style, Thermal-Magnetic, 600 Ampere at 40 Degree Celsius, 3 Pole, Magnetic Trip Adjustment at 5-10 Times Continuous Ampere Rating, For Use in Molded Case Circuit Breakers With Optional Interchangeable Trip Units. New Surplus and Certified Reconditioned with 1 Year Warranty.

    MT3600T

    Eaton / Cutler Hammer

    M-Frame Style Trip Unit Look under Parts & Accessories or follow the links below to order accessories used to create additional configurations ...

    View full details
  • MT3700T Trip Unit, M Frame Style, Thermal-Magnetic, 700 Ampere at 40 Degree Celsius, 3 Pole, Magnetic Trip Adjustment at 4-8 Times Continuous Ampere Rating, For Use in Molded Case Circuit Breakers With Optional Interchangeable Trip Units. New Surplus and Certified Reconditioned with 1 Year Warranty.

    MT3700T

    Eaton / Cutler Hammer

    M-Frame Style Trip Unit Look under Parts & Accessories or follow the links below to order accessories used to create additional configurations ...

    View full details
  • MT3800T Trip Unit, M Frame Style, Thermal-Magnetic, 800 Ampere at 40 Degree Celsius, 3 Pole, Magnetic Trip Adjustment at 4-8 Times Continuous Ampere Rating, For Use in Molded Case Circuit Breakers With Optional Interchangeable Trip Units. New Surplus and Certified Reconditioned with 1 Year Warranty.

    MT3800T

    Eaton / Cutler Hammer

    M-Frame Style Trip Unit Look under Parts & Accessories or follow the links below to order accessories used to create additional configurations ...

    View full details