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.

    1353 產品顯示為 Thermal Breakers

    HK$5,633.25
    Schneider Electric
    25A
    3
    TeSys
    690V ac
    165mm
    GV4P
    -
    Thermal-Magnetic
    -
    -
    690V
    Yes
    Green Premium
    -
    HK$9,509.70
    Schneider Electric
    50A
    3
    TeSys
    690V ac
    116mm
    GV4PE
    -
    Thermal-Magnetic
    -
    -
    690V
    Yes
    Green Premium
    -
    • RS庫存編號 212-1890
    • 製造零件編號 3130-F110-P7T1-W02Q-10A
    HK$189.10
    ETA
    10A
    1
    -
    240V
    14.5mm
    3130
    -
    Thermal
    Rocker
    -
    240V
    -
    -
    Snap In
    毎盒:5 个
    HK$4,622.00
    Sensata / Airpax
    15A
    2
    Airpax
    -
    38.48mm
    IUGN66
    -
    -
    -
    -
    -
    -
    -
    Panel Mount
    毎盒:5 个
    HK$6,583.80
    Sensata / Airpax
    100A
    2
    Airpax
    240V ac
    52.63mm
    209
    -
    -
    -
    -
    -
    -
    -
    Panel Mount
    • RS庫存編號 275-0346
    • 製造零件編號 LEGBXA66-1-62-20.0-AG-M6-T
    毎盒:5 个
    HK$4,910.60
    Sensata / Airpax
    20A
    2
    Airpax
    -
    38.48mm
    LEGBXA66
    -
    -
    -
    -
    -
    -
    -
    Panel Mount
    • RS庫存編號 250-9760
    • 製造零件編號 142426 NZMH2-ME200-BT-NA
    HK$27,588.00
    Eaton
    200A
    3
    -
    690V ac
    105mm
    NZM..-ME..NA
    -
    -
    -
    -
    -
    -
    -
    -
    • RS庫存編號 275-0354
    • 製造零件編號 LEGH66-1-63-5.00-A-01-V
    毎盒:5 个
    HK$3,962.20
    Sensata / Airpax
    5A
    2
    Airpax
    -
    38.48mm
    LEGH66
    -
    -
    -
    -
    -
    -
    -
    Panel Mount
    毎盒:6 个
    HK$6,251.10
    Phoenix Contact
    6A
    -
    -
    250V
    38mm
    TMCP
    -
    Thermal-Magnetic
    -
    -
    250V
    -
    -
    -
    HK$4,092.90
    Schneider Electric
    115A
    3
    TeSys
    690V ac
    165mm
    GV4L
    -
    Magnetic
    -
    -
    690V
    Yes
    Green Premium
    -
    • RS庫存編號 210-2052
    • 製造零件編號 3120-N32F-H7T1-SGRD-10A
    HK$333.50
    ETA
    10A
    2
    -
    50 V DC, 240 V AC
    26.4mm
    3120-N
    -
    -
    -
    -
    -
    -
    -
    -
    • RS庫存編號 210-2088
    • 製造零件編號 3120-N551-H7T1-W02D-20A
    HK$208.40
    ETA
    20A
    5
    -
    50 V DC, 240 V AC
    25mm
    3120-N
    -
    -
    -
    -
    -
    -
    -
    -
    HK$740.00
    Phoenix Contact
    500mA
    2
    -
    80V dc
    24.6mm
    CB TM2
    -
    -
    -
    -
    -
    -
    -
    -
    毎盒:50 个
    HK$3,981.00
    Schurter
    5A
    1
    TA36 Rocker
    32 V dc, 277 V ac
    14.5mm
    TA36
    -
    -
    -
    -
    -
    -
    -
    -
    HK$268.98
    Altech
    8A
    2
    -
    277V
    35mm
    V-EA
    -
    Thermal-Magnetic
    Handle
    Type G
    480Y/277V
    -
    -
    DIN Rail Mount
    个 (以毎盒:20)
    HK$214.704
    Schurter
    800mA
    1
    -
    240V ac
    -
    T12
    -
    -
    -
    -
    -
    -
    -
    -
    HK$5,519.57
    Schneider Electric
    115A
    3
    TeSys
    690V ac
    116mm
    GV4PE
    -
    Thermal-Magnetic
    -
    -
    690V
    Yes
    Green Premium
    -
    HK$921.64
    ETA
    15A
    1
    -
    80V dc
    19mm
    8340
    -
    -
    Toggle Switch
    -
    -
    -
    -
    Flange Mount
    HK$871.30
    Phoenix Contact
    8A
    2
    Thermomagnetic Device Circuit Breaker
    80V dc
    24.6mm
    CB
    -
    -
    -
    -
    -
    -
    -
    -
    • RS庫存編號 250-9755
    • 製造零件編號 142421 NZMN2-ME90-BT-NA
    HK$13,778.47
    Eaton
    90A
    3
    -
    480V
    105mm
    NZM..-ME..NA
    -
    -
    -
    -
    -
    -
    -
    -
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