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    Thermal Breakers

    Thermal breakers protect circuits from excess current in a similar way to a fuse, however, they often feature a switch allowing them to be reset if tripped. Common types of thermal breakers include thermal magnetic circuit breakers and thermal automotive circuit breakers.

    Types of Thermal Breakers

    Thermal magnetic circuit breakers are devices that provide protection against overcurrent in circuits. Circuit breakers use an automatically operated electrical switch to disrupt the flow of current when an overload or short circuit is detected. Thermal magnetic circuit breakers do this using an electromagnet and bimetallic strips.

    Circuit breakers provide more sophisticated protection against overcurrent than a simple fuse. Fuses simply burn out and have to be replaced, whereas circuit breakers just need to be reset.

    Thermal automotive circuit breakers are devices used to break the flow of current in automotive circuits, in order to protect them against a fault such as overcurrent or short circuit.

    The thermal aspect of this type of circuit breaker allows for smaller overcurrents over a longer period of time, but will quickly trip the circuit for larger overcurrents. This is useful in the case of motors, as there will be a small overcurrent each time the engine is switched on for a short length of time, which should not trip the circuit.

    What are thermal magnetic circuit breakers used for?

    Thermal magnetic circuit breakers are most often used in distribution boards. They make up part of the subsidiary circuits in the broader electrical supply system, protecting against overcurrent.

    What are thermal automotive circuit breakers used for?

    Thermal automotive circuit breakers are used to protect electrical networks in most types of vehicles, including cars, vans, buses, and boats.

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    1012 Products
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    Product Details
    Price
    Brand
    Current Rating
    Number of Poles
    Range
    Voltage Rating
    Width
    Series
    Application
    Tripping Mechanism
    Reset Actuator Type
    Tripping Characteristics
    Rated AC Voltage
    Better World Product
    Mounting Style
    RS PRO
    16A
    -
    -
    -
    11mm
    A-0709
    -
    -
    -
    -
    -
    -
    -
    RS PRO
    13A
    -
    -
    -
    11mm
    A-0709
    -
    -
    -
    -
    -
    -
    -
    RS PRO
    8A
    -
    -
    -
    11mm
    A-0709
    -
    -
    -
    -
    -
    -
    Snap In
    RS PRO
    5A
    -
    -
    -
    14.1mm
    A-0709
    -
    -
    -
    -
    -
    -
    -
    RS PRO
    2.2A
    2
    -
    250V ac
    6mm
    AN
    -
    -
    -
    -
    -
    -
    -
    RS PRO
    6A
    -
    -
    32 V dc, 240V ac
    14.1mm
    A-0709
    -
    -
    -
    -
    -
    -
    Snap In
    Schneider Electric
    50A
    3
    TeSys
    690V
    55mm
    GV3
    Motors
    Thermal-Magnetic
    -
    -
    690V
    Yes
    DIN Rail Mount
    ETA
    10A
    1
    -
    250V
    14.5mm
    2-5700
    -
    Thermal
    Button
    -
    250V
    -
    Panel Mount
    Schneider Electric
    40A
    3
    TeSys
    690V
    55mm
    GV3
    Motors
    Thermal-Magnetic
    -
    -
    690V
    Yes
    DIN Rail Mount
    Schneider Electric
    65A
    3
    TeSys
    690V
    55mm
    GV3
    Motors
    Thermal-Magnetic
    -
    -
    690V
    Yes
    DIN Rail Mount
    Schneider Electric
    2A
    1P + N
    TeSys
    250V ac
    15mm
    GB2
    -
    Thermal-Magnetic
    Toggle Switch
    -
    250 V, 277 V
    -
    DIN Rail Mount
    ETA
    5A
    2
    -
    -
    25mm
    3120-F
    -
    -
    Rocker
    -
    -
    -
    Snap In
    ETA
    10A
    1
    -
    250V
    15.7mm
    2 5700
    -
    Thermal
    Button
    -
    250V
    -
    Panel Mount
    ETA
    15A
    1
    -
    250V
    14.5mm
    2-5700
    -
    Thermal
    Button
    -
    250V
    -
    Panel Mount
    ETA
    10A
    1
    -
    250V
    14mm
    1658
    -
    -
    Button
    -
    250V
    -
    Panel Mount
    ETA
    16A
    1
    -
    250V
    14mm
    1658
    -
    -
    Button
    -
    250V
    -
    Panel Mount
    ETA
    7A
    1
    -
    250V
    14.5mm
    2-5700
    -
    Thermal
    Button
    -
    250V
    -
    Panel Mount
    Schneider Electric
    3A
    1P + N
    -
    250V ac
    15mm
    GB2
    -
    -
    -
    -
    -
    -
    DIN Rail Mount
    Schneider Electric
    40A
    3
    TeSys
    690V
    55mm
    GV3
    Motors
    Thermal-Magnetic
    -
    -
    690V
    Yes
    DIN Rail Mount
    Schneider Electric
    2A
    1
    -
    277 V ac, 415V ac
    15mm
    GB2
    -
    -
    -
    -
    -
    -
    DIN Rail Mount
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