lovato contactor overload relays
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    Lovato Contactor Overload Relays

    All electric motors have a lifespan, and to keep them running efficiently and safely they must be protected. One of the main causes of failure is electrical overload, sometimes called overcurrent. When a motor draws more current than it is designed to handle it causes the temperature to build-up resulting in overheating. This damages motor windings and coils. It is important to protect the motor and its circuit, and this is where the use of contactor overload relays can help.RS offer an extensive range of high-quality contactor overload relays from leading industry brands including Schneider Electric, Siemens, ABB, Eaton, Lovato, and Rockwell Automation.

    What is overload protection?

    Overload is where a motor draws a high current above its rated value for an extended amount of time. Overload causes overheating of the motor causing damage. To prevent this from happening devices such as contactor relays are specifically designed for industrial control motor protection. They are used with contactors as part of a motor starter or in a control panel or centre.

    What are the different types of contactor overload relays?

    The motor protection devices can be classified into two main types which are thermal types and electronic types.Thermal overload relaysUtilise a bi-metallic plate located near a heating element. When excessive current is passed through the heating element N/C (Normally Closed) contacts switch over and opens contacts. This interrupts power from flowing to the contactor's control circuit. Thermal overloads usually offer an adjustable current range as well as a manual or automatic reset option.Electronic RelaysElectronic overload relays don't have a bi-metallic mechanism, Instead, they work by using components such as temperature sensors to measure the load current. They are generally more accurate than thermal devices and they usually have a wider current range, a selectable trip class provides enhanced trip protection against single phasing against the motor.

    133 Products showing for Lovato Contactor Overload Relays

    Lovato
    0.63 → 1 A
    1 A
    -
    3P
    690 V
    RF38
    -
    -
    -
    Automatic, Manual
    Screw
    2
    45mm
    80.7mm
    81mm
    +60°C
    -25°C
    -
    -
    -
    -25 → +60 °C
    Lovato
    6.3 → 10 A
    10 A
    -
    3P
    -
    RF38
    Direct Mount
    -
    -
    Automatic, Manual
    Screw
    2
    -
    -
    -
    +60°C
    -25°C
    -
    -
    -
    -25 → +60 °C
    Lovato
    9 → 14 A
    14 A
    -
    3P
    -
    RF38
    Direct Mount
    -
    -
    Automatic, Manual
    Screw
    2
    -
    -
    -
    +60°C
    -25°C
    -
    -
    -
    -25 → +60 °C
    Lovato
    46 → 65 A
    82 A
    -
    3P
    -
    RF82
    Direct Contactor
    -
    1NO + 1NC
    Automatic, Manual
    Screw
    2
    -
    -
    -
    +55°C
    -20°C
    -
    -
    -
    -20 → +55 °C
    Lovato
    0.15 A
    150 mA
    RF9
    3P
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Lovato
    24 → 32 A
    32 A
    -
    3P
    8 kV
    RF38
    Direct Contactor
    -
    -
    Manual
    Screw
    1
    12.6mm
    -
    -
    +60°C
    -25°C
    -
    -
    -
    -25 → +60 °C
    Lovato
    0.15 A
    10A
    RFN9
    3P
    -
    -
    -
    -
    1NO +1NC
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Lovato
    20 → 33 A
    82 A
    -
    3P
    -
    RF82
    Direct Contactor
    -
    1NO + 1NC
    Automatic, Manual
    Screw
    2
    -
    -
    -
    +55°C
    -20°C
    -
    -
    -
    -20 → +55 °C
    Lovato
    0.33 A
    10A
    RFNA9
    3P
    -
    -
    -
    -
    1NO +1NC
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Lovato
    -
    -
    DRPT
    -
    -
    31DRPT
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Lovato
    -
    22 A
    BGF00
    4P
    -
    -
    -
    -
    2NO + 2NC
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Lovato
    -
    -
    BGF00
    4P
    -
    -
    -
    -
    2NO + 2NC
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Lovato
    0.33 A
    10A
    RFA9
    2P
    -
    -
    -
    -
    1NO +1NC
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Lovato
    15 A
    10A
    RFNA9
    3P
    -
    -
    -
    -
    1NO +1NC
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Lovato
    15 A
    10A
    RFA9
    3P
    -
    -
    -
    -
    1NO +1NC
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Lovato
    -
    -
    BGF00
    4P
    -
    -
    -
    -
    2NO + 2NC
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Lovato
    -
    -
    DRPT
    -
    -
    31DRPT
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Lovato
    28 → 42 A
    82 A
    -
    3P
    -
    RF82
    Direct Contactor
    -
    1NO + 1NC
    Automatic, Manual
    Screw
    2
    -
    -
    -
    +55°C
    -20°C
    -
    -
    -
    -20 → +55 °C
    Lovato
    10 A
    10A
    RFN9
    3P
    -
    -
    -
    -
    1NO +1NC
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Lovato
    -
    -
    BGF00
    4P
    -
    -
    -
    -
    2NO + 2NC
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
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