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.

    1352 產品顯示為 Thermal Breakers

    HK$83.40
    Schurter
    6A
    1
    TA36 Rocker
    32 V dc, 277 V ac
    14.5mm
    TA36
    -
    -
    -
    -
    -
    -
    -
    -
    HK$740.00
    Phoenix Contact
    500mA
    2
    -
    80V dc
    24.6mm
    CB TM2
    -
    -
    -
    -
    -
    -
    -
    -
    HK$740.00
    Phoenix Contact
    2A
    2
    -
    80V dc
    24.6mm
    CB TM2
    -
    -
    -
    -
    -
    -
    -
    -
    HK$683.80
    Phoenix Contact
    2A
    2
    -
    80V dc
    24.6mm
    CB TM2
    -
    -
    -
    -
    -
    -
    -
    -
    HK$740.00
    Phoenix Contact
    6A
    2
    -
    80V dc
    24.6mm
    CB TM2
    -
    -
    -
    -
    -
    -
    -
    -
    HK$82.40
    Schurter
    10A
    1
    TA36 Rocker
    32 V dc, 277 V ac
    14.5mm
    TA36
    -
    -
    -
    -
    -
    -
    -
    -
    毎盒:50 个
    HK$3,981.00
    Schurter
    5A
    1
    TA36 Rocker
    32 V dc, 277 V ac
    14.5mm
    TA36
    -
    -
    -
    -
    -
    -
    -
    -
    毎盒:50 个
    HK$4,170.90
    Schurter
    6A
    1
    TA36 Rocker
    32 V dc, 277 V ac
    14.5mm
    TA36
    -
    -
    -
    -
    -
    -
    -
    -
    毎盒:50 个
    HK$3,061.10
    Schurter
    20A
    1
    TA36 Rocker
    32 V dc, 277 V ac
    14.5mm
    TA36
    -
    -
    -
    -
    -
    -
    -
    -
    HK$4,066.90
    Schneider Electric
    50A
    3
    TeSys
    690V ac
    116mm
    GV4PE
    -
    Thermal-Magnetic
    -
    -
    690V
    Yes
    Green Premium
    -
    • RS庫存編號 210-2090
    • 製造零件編號 3120-N551-H7T1-W02D-3A
    HK$262.43
    ETA
    3A
    5
    -
    50 V DC, 240 V AC
    25mm
    3120-N
    -
    -
    -
    -
    -
    -
    -
    -
    • RS庫存編號 250-9756
    • 製造零件編號 142422 NZMN2-ME140-BT-NA
    HK$16,315.62
    Eaton
    140A
    3
    -
    690V ac
    105mm
    NZM..-ME..NA
    -
    -
    -
    -
    -
    -
    -
    -
    HK$71.31
    TE Connectivity
    30A
    1
    -
    250V ac
    -
    Potter & Brumfield W54
    -
    -
    -
    -
    -
    -
    -
    Panel Mount
    HK$2,235.11
    Sensata / Airpax
    35A
    3
    Airpax
    480V ac
    57.53mm
    IELHK111
    -
    -
    -
    -
    -
    -
    -
    Panel Mount
    HK$146.39
    Sensata / Airpax
    5A
    1
    Airpax
    -
    17.27mm
    R11
    -
    -
    -
    -
    -
    -
    -
    Panel Mount
    HK$1,424.07
    Sensata / Airpax
    10A
    2
    Airpax
    240V ac
    38.48mm
    LELHK11
    -
    -
    -
    -
    -
    -
    -
    Panel Mount
    HK$268.98
    Altech
    2A
    2
    -
    277V
    35mm
    V-EA
    -
    Thermal-Magnetic
    Handle
    Type G
    480Y/277V
    -
    -
    DIN Rail Mount
    HK$268.98
    Altech
    3.5A
    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
    HK$146.39
    Sensata / Airpax
    15A
    1
    Airpax
    -
    17.27mm
    PR11
    -
    -
    -
    -
    -
    -
    -
    Panel Mount
    HK$2,680.90
    Carling Technologies
    250A
    1
    -
    277V
    -
    F
    Battery Disconnect Systems, Higher Amperage Applications, Ideal for Applications Under Extreme Temperatures, Military, Solar Power Systems
    Hydraulic-Magnetic
    Handle
    -
    277V
    -
    -
    Panel Mount
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