McMaster-Carr logo
    Filter by
    Electrical Phase
    Overload Protection Class
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Motor Protection
    DFARS Specialty Metals
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Auxiliary Contact Switch Starting Position
    Industrial Info Compare
    Number of Mounting Holes
    Depth
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    36 Products

    Build-Your-Own Manual Motor Starters

    Assemble your own motor starter by combining a switch and a thermal overload element.
    Thermal overload elements shut motors off if current exceeds the full-load current rating. Three elements are required. To Order: Please specify the full-load current rating of your motor. If the full-load current rating is not shown on the motor’s faceplate, estimate the current rating (given the motor’s power and voltage).
    Thermal Overload Elements
    Image of Product. Front orientation. Motor Starters. Build-Your-Own Manual Motor Starters.
    Thermal overload elements shut motors off if current exceeds the full-load current rating. Three elements are required. To Order: Please specify the full-load current rating of your motor. If the full-load current rating is not shown on the motor’s faceplate, estimate the current rating (given the motor’s power and voltage).
    Overload Current,
    amp
    Each
    0.193 to 0.2127254K613000000
    0.213 to 0.2357254K61400000
    0.262 to 0.2897254K61600000
    0.356 to 0.3997254K62200000
    0.41 to 0.447254K62300000
    0.45 to 0.497254K62400000
    0.5 to 0.537254K62500000
    0.59 to 0.657254K62700000
    0.72 to 0.787254K63200000
    0.79 to 0.857254K63300000
    0.86 to 0.967254K63400000
    1.05 to 1.167254K63600000
    1.17 to 1.257254K63700000
    1.3 to 1.397254K64100000
    2.16 to 2.387254K65100000
    2.76 to 2.847254K65300000
    2.85 to 3.067254K65400000
    3.07 to 3.457254K65500000
    3.46 to 3.77254K65600000
    3.71 to 4.077254K65700000
    4.08 to 4.327254K65800000
    4.33 to 4.97254K66100000
    6.42 to 6.797254K66500000
    6.8 to 7.577254K66600000
    8.16 to 8.987254K66800000
    8.99 to 9.677254K67100000
    10.9 to 12.17254K67400000
    14 to 157254K67700000
     

    Motor Starter Overload Protectors

    Image of Product. Front orientation. Motor Starter Overload Protectors.
    Upgrade motor starters that use thermal overload protection with these solid-state overloads—they don't use heating elements, so enclosure ventilation and cooling is not required. All have a full-load amp adjustment dial to accommodate circuits with different full-load amp ratings.
    If the full-load amp rating is not shown on your motor’s faceplate, estimate the current rating (given the motor’s horsepower and voltage).
    Overload Current,
    amp
    Trip Time, sec.
    Overload Protection
    Class
    Motor Protection
    Ht.
    Wd.
    Dp.
    Wire
    Connection
    Certification
    Each
    2 Auxiliary Contacts with 1 Off, 1 On
     
    For Single Phase
    3 to 125, 10, 20, 305, 10, 20, 30Overvoltage, Phase Loss2.2"3.5"3.2"Screw TerminalUL Listed, CSA Certified
    		7730K530000000
    5.5 to 225, 10, 20, 305, 10, 20, 30Overvoltage, Phase Loss2.2"3.5"3.2"Screw TerminalUL Listed, CSA Certified
    		7730K54000000
     
    For Three Phase
    0.75 to 3.45, 10, 20, 305, 10, 20, 30Overvoltage, Phase Loss3.2"3.5"3.2"Screw TerminalUL Listed, CSA Certified
    		7730K62000000
    3 to 125, 10, 20, 305, 10, 20, 30Overvoltage, Phase Loss2.2"3.5"3.2"Screw TerminalUL Listed, CSA Certified
    		7730K63000000
    5.5 to 225, 10, 20, 305, 10, 20, 30Overvoltage, Phase Loss2.2"3.5"3.2"Screw TerminalUL Listed, CSA Certified
    		7730K64000000
    10 to 405, 10, 20, 305, 10, 20, 30Overvoltage, Phase Loss2.2"3.5"3.2"Screw TerminalUL Listed, CSA Certified
    		7730K65000000
    13 to 525, 10, 20, 305, 10, 20, 30Overvoltage, Phase Loss2.3"4.5"4"Screw TerminalUL Listed, CSA Certified
    		7730K66000000
    25 to 1005, 10, 20, 305, 10, 20, 30Overvoltage, Phase Loss2.3"4.5"4"Screw TerminalUL Listed, CSA Certified
    		7730K67000000
     
    back to top