Thermal Breakers | Thermal Circuit Breakers | RS
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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.

    1402 Products showing for Thermal Breakers

    Schurter
    15A
    2
    TA36 Rocker
    60 V dc, 277 V ac
    26mm
    TA36
    -
    -
    -
    -
    -
    -
    -
    -
    Sensata / Airpax
    100A
    2
    Airpax
    240V ac
    52.63mm
    209
    -
    -
    -
    -
    -
    -
    -
    Panel Mount
    Schneider Electric
    12.5A
    3
    TeSys
    690V ac
    116mm
    GV4PEM
    -
    Thermal-Magnetic
    -
    -
    690V
    Yes
    Green Premium
    -
    Sensata / Airpax
    10A
    2
    Airpax
    -
    38.48mm
    IUGN66
    -
    -
    -
    -
    -
    -
    -
    Panel Mount
    Sensata / Airpax
    15A
    2
    Airpax
    -
    38.48mm
    LELH11
    -
    -
    -
    -
    -
    -
    -
    Panel Mount
    ETA
    8A
    1
    -
    240V ac
    -
    1140
    -
    -
    -
    -
    -
    -
    -
    Panel Mount
    Altech
    25A
    2
    -
    277V
    35mm
    V-EA
    AC Discharge Lamps (Ballast), AC General Use, AC Incandescent Lamps (Tungsten), AC Motor Starting, AC Resistance, Across the Line, High Efficiency Motors, UL508 Application, Which have Exceedingly High Inrush Current
    Thermal-Magnetic
    Handle
    Type E
    480Y/277V
    -
    -
    DIN Rail Mount
    Phoenix Contact
    6A
    2
    -
    80V dc
    24.6mm
    CB TM2
    -
    -
    -
    -
    -
    -
    -
    -
    Sensata / Airpax
    5A
    3
    Airpax
    240V ac
    57.53mm
    LELHK111
    -
    -
    -
    -
    -
    -
    -
    Panel Mount
    Schurter
    16A
    1
    TA36 Rocker
    32 V dc, 277 V ac
    14.5mm
    TA36
    -
    -
    -
    -
    -
    -
    -
    -
    Schneider Electric
    80A
    3
    TeSys
    690V ac
    116mm
    GV4PE
    -
    Thermal-Magnetic
    -
    -
    690V
    Yes
    Green Premium
    -
    Phoenix Contact
    3A
    2
    Thermomagnetic Device Circuit Breaker
    80V dc
    24.6mm
    CB
    -
    -
    -
    -
    -
    -
    -
    -
    Phoenix Contact
    6A
    2
    Trabtech
    80V dc
    24.6mm
    CB TM2
    -
    -
    -
    -
    -
    -
    -
    -
    Schurter
    3A
    2
    TA36 Rocker
    60 V dc, 277 V ac
    26mm
    TA36
    -
    -
    -
    -
    -
    -
    -
    -
    Schneider Electric
    3.5A
    3
    TeSys
    690V ac
    116mm
    GV4PE
    -
    Thermal-Magnetic
    -
    -
    690V
    Yes
    Green Premium
    -
    Sensata / Airpax
    50A
    1
    Airpax
    -
    19.05mm
    IULNK1
    -
    -
    -
    -
    -
    -
    -
    Panel Mount
    Phoenix Contact
    4A
    2
    Thermomagnetic Device Circuit Breaker
    80V dc
    24.6mm
    CB
    -
    -
    -
    -
    -
    -
    -
    -
    Schurter
    3A
    2
    TA36 Rocker
    60 V dc, 277 V ac
    26mm
    TA36
    -
    -
    -
    -
    -
    -
    -
    -
    ETA
    1A
    5
    -
    50 V DC, 240 V AC
    25mm
    3120-N
    -
    -
    -
    -
    -
    -
    -
    -
    Schneider Electric
    60A
    3
    BGF
    525V ac
    81mm
    BGF
    -
    -
    -
    -
    -
    -
    -
    Clip-On
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