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$307.00
    Schneider Electric
    3A
    1P + N
    -
    250V ac
    15mm
    GB2
    -
    -
    -
    -
    -
    -
    -
    DIN Rail Mount
    • RS庫存編號 405-9141
    • 製造零件編號 2-5700-IG1-P10-DD-000040-10A
    HK$231.90
    ETA
    10A
    1
    -
    250V
    14.5mm
    2-5700
    -
    Thermal
    Button
    -
    250V
    -
    -
    Panel Mount
    HK$35.00
    ETA
    6A
    1
    -
    250V
    14mm
    1658
    -
    -
    Button
    -
    250V
    -
    -
    Panel Mount
    HK$351.50
    Schneider Electric
    6A
    1P + N
    -
    250V ac
    15mm
    GB2
    Control Circuit
    Thermal-Magnetic
    Toggle Switch
    -
    250 V, 277 V
    -
    -
    DIN Rail Mount
    HK$192.80
    Schneider Electric
    3A
    1
    -
    277 V ac, 415V ac
    15mm
    GB2
    -
    -
    -
    -
    -
    -
    -
    DIN Rail Mount
    HK$416.00
    Schneider Electric
    1A
    2
    -
    277 V ac, 415V ac
    30mm
    GB2
    -
    -
    -
    -
    -
    -
    -
    DIN Rail Mount
    HK$761.60
    Schneider Electric
    4A
    2
    -
    277 V ac, 415V ac
    30mm
    GB2
    -
    -
    -
    -
    -
    -
    -
    DIN Rail Mount
    • RS庫存編號 405-9157
    • 製造零件編號 2-5700-IG1-P10-DD-000040-15A
    HK$183.70
    ETA
    15A
    1
    -
    250V
    14.5mm
    2-5700
    -
    Thermal
    Button
    -
    250V
    -
    -
    Panel Mount
    HK$299.30
    Schneider Electric
    10A
    1P + N
    -
    250V ac
    15mm
    GB2
    -
    -
    -
    -
    -
    -
    -
    DIN Rail Mount
    • RS庫存編號 729-2760
    • 製造零件編號 2-5700-IG2-P10-DD-000040-15A
    HK$243.90
    ETA
    15A
    1
    -
    250V
    15.7mm
    2 5700
    -
    Thermal
    Button
    -
    250V
    -
    -
    Panel Mount
    HK$257.10
    TE Connectivity
    5A
    1
    -
    50 V dc, 250V ac
    17.52mm
    W23
    -
    Thermal
    -
    -
    -
    -
    -
    -
    HK$62.50
    TE Connectivity
    10A
    1
    -
    50 V dc, 250V ac
    16.76mm
    W58
    -
    Thermal
    -
    -
    -
    -
    -
    -
    HK$57.90
    TE Connectivity
    5A
    1
    -
    50 V dc, 250V ac
    16.76mm
    W58
    -
    Thermal
    -
    -
    -
    -
    -
    -
    • RS庫存編號 729-2773
    • 製造零件編號 2-5700-IG2-P10-DD-000040-20A
    HK$192.80
    ETA
    20A
    1
    -
    250V
    15.7mm
    2 5700
    -
    Thermal
    Button
    -
    250V
    -
    -
    Panel Mount
    • RS庫存編號 729-2815
    • 製造零件編號 3130-F130-P7T1-W02Q-16A
    HK$445.70
    ETA
    16A
    3
    -
    240V
    41mm
    3130
    -
    Thermal
    Rocker
    -
    240V
    -
    -
    Snap In
    HK$29.60
    TE Connectivity
    7A
    1
    -
    32 V dc, 250V ac
    19.30mm
    W28
    -
    Thermal
    -
    -
    -
    -
    -
    -
    HK$793.30
    TE Connectivity
    30A
    2
    -
    277V ac
    38.1mm
    W92
    -
    Thermal
    -
    -
    -
    -
    -
    -
    HK$90.50
    TE Connectivity
    2A
    1
    -
    50 V dc, 250V ac
    16.76mm
    W58
    -
    Thermal
    -
    -
    -
    -
    -
    -
    HK$33.30
    TE Connectivity
    15A
    1
    -
    32 V dc, 250V ac
    19.30mm
    W28
    -
    Thermal
    -
    -
    -
    -
    -
    -
    HK$337.50
    Phoenix Contact
    4A
    1
    TRABTECH
    -
    12.3mm
    CB TM1 4A M1 P
    -
    Thermal-Magnetic
    -
    Type S
    -
    -
    -
    -
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