Non Resettable Fuses | 250V Fuses | RS
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    Non Resettable Fuses

    Non-resettable fuses are single-use circuit protection devices that break a circuit when a fault is detected, offering protection to vital components. This type of fuse is designed to be mounted directly onto a printed circuit board (PCB). This type of fuse is for single use, with the fuse body and two wires that extend outside the body.

    How do non-resettable fuses work?

    Non-resettable fuses perform the role of a simple circuit breaker in a circuit. When a fault such as overcurrent or a short circuit is detected, the metal strip inside the fuse melts, stopping the flow of current and preventing damage to the circuit and any other connected devices. Once the fuse has blown, it must be replaced as it is non-resettable.

    These fuse types are often used in motors, where if overheating occurs, the power is cut before any permanent component damage occurs.

    Types of non-resettable fuses

    Non-resettable fuses can differ by their voltage and current rating, their size and their level of resistance, measured in ohms. Their body material can also vary widely, from thermoplastic to glass ceramic. This type of fuse can have a range of maximum and minimum operating temperatures.

    1737 Products showing for Non Resettable Fuses

    Littelfuse
    50A
    -
    250V ac
    FF
    -
    -
    12.2mm
    4.5mm
    -
    -
    -
    -
    -
    -
    -
    Schurter
    1A
    -
    125V ac
    Quick-Acting F
    Thermoplastic
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Panasonic
    2A
    -
    32V dc
    F
    Alumina Substrate
    -
    1mm
    0.5mm
    0.39mm
    -
    -
    -
    -40°C
    +125°C
    -
    Bourns
    5A
    -
    65V dc
    F
    Ceramic
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Wickmann
    5A
    -
    75V
    F
    Ceramic
    -
    3.17mm
    1.57mm
    1.57mm
    -
    -
    50 A @ 32 V ac, 50 A @ 75 V dc
    -55°C
    +125°C
    458
    Schurter
    750mA
    -
    125V ac/dc
    FF
    Ceramic
    -
    3.2mm
    1.55mm
    1.55mm
    -
    -
    300 A @ 125 V dc, 50 A @ 125 V ac
    -55°C
    +150°C
    -
    Schurter
    5A
    -
    32 V ac, 63V dc
    F
    Epoxy Glass
    -
    3.2mm
    1.6mm
    0.6mm
    -
    -
    63 A @ 32 V ac, 63 A @ 63 V dc
    -55°C
    +90°C
    -
    Littelfuse
    800mA
    Radial
    250V ac
    T
    Thermoplastic Polyamide
    8.5mm
    -
    -
    8mm
    4.3mm
    5.08mm
    -
    -40°C
    +85°C
    -
    Schurter
    500mA
    -
    125V ac/dc
    F
    Thermoplastic
    -
    7.4mm
    3.1mm
    2.6mm
    -
    -
    100 A @ 125 V ac/dc
    -55°C
    +125°C
    -
    Eaton
    1A
    -
    1000V dc
    T
    -
    -
    40.1mm
    8mm
    17mm
    -
    -
    40 kA
    -
    -
    -
    Wickmann
    -
    -
    125V ac/dc
    FF
    -
    -
    -
    -
    -
    7.11mm
    -
    -
    -55°C
    +125°C
    251
    Schurter
    2A
    -
    125V ac/dc
    FF
    Ceramic
    -
    3.2mm
    1.55mm
    1.55mm
    -
    -
    300 A @ 125 V dc, 50 A @ 125 V ac
    -55°C
    +150°C
    -
    Bourns
    1A
    -
    65V dc
    T
    Ceramic
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Eaton
    2A
    Radial
    300V ac
    T
    Plastic
    8.5mm
    -
    -
    9.2mm
    4.8mm
    5.08mm
    -
    -40°C
    +85°C
    -
    Bourns
    5A
    -
    50 V dc, 63 V dc
    T
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Bourns
    8A
    -
    48V dc
    F
    Ceramic
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Littelfuse
    2.5A
    -
    32V ac/dc
    F
    Ceramic
    -
    3.2mm
    1.63mm
    0.818mm
    -
    -
    -
    -55°C
    +150°C
    -
    Schurter
    6.3A
    -
    32V ac
    Quick-Acting F
    Fibreglass Reinforced Thermoplastic
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Schurter
    1A
    -
    63V ac/dc
    F
    Thermoplastic
    -
    7.4mm
    3.1mm
    2.6mm
    -
    -
    50 A @ 63 V ac/dc
    -55°C
    +125°C
    -
    Littelfuse
    1A
    Radial
    250V ac
    F
    Nylon
    8.5mm
    -
    -
    8mm
    18.8mm
    5.08mm
    35 A
    -40°C
    +85°C
    -
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