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.

    1826 Products showing for Non Resettable Fuses

    RS PRO
    1.5A
    Axial
    250V ac
    T
    Epoxy Coated
    3.18mm
    -
    -
    7.1mm
    28mm
    -
    50 A @ 250 V ac/125 V dc
    -55°C
    +125°C
    -
    RS PRO
    3.15A
    Radial
    250V ac
    T
    Nylon
    8.5mm
    -
    -
    8mm
    4.3mm
    5.08mm
    35 A
    -40°C
    +85°C
    -
    RS PRO
    400mA
    Radial
    250V ac
    T
    Thermoplastic
    -
    8.35mm
    4.3mm
    7.7mm
    22mm
    5.08mm
    35 A @ 250 V ac
    -55°C
    +125°C
    -
    RS PRO
    4A
    Radial
    250V ac
    T
    Nylon
    8.5mm
    -
    -
    8mm
    4.3mm
    5.08mm
    40 A
    -40°C
    +85°C
    -
    RS PRO
    1A
    Radial
    250V
    F
    Thermoplastic
    -
    8.35mm
    4.3mm
    7.7mm
    22mm
    5.08mm
    35 A @ 250 V ac
    -55°C
    +125°C
    -
    RS PRO
    2A
    Radial
    250V ac
    F
    Thermoplastic
    8.35mm
    -
    -
    7.7mm
    22mm
    5.08mm
    35 A @ 250 V ac
    -55°C
    +125°C
    -
    RS PRO
    2A
    Radial
    250V
    F
    Thermoplastic
    -
    8.35mm
    4.3mm
    7.7mm
    22mm
    5.08mm
    35 A @ 250 V ac
    -55°C
    +125°C
    -
    RS PRO
    500mA
    Axial
    125V ac/dc
    FF
    Epoxy Coated
    2.65mm
    -
    -
    7.1mm
    28mm
    -
    300 A @ 125 V dc, 50 A @ 125 V ac
    -55°C
    +125°C
    -
    RS PRO
    3.15A
    Radial
    250V ac
    T
    Thermoplastic
    -
    8.35mm
    4.3mm
    7.7mm
    22mm
    5.08mm
    35 A @ 250 V ac
    -55°C
    +125°C
    -
    RS PRO
    3.15A
    Radial
    250V
    F
    Thermoplastic
    -
    8.35mm
    4.3mm
    7.7mm
    22mm
    5.08mm
    35 A @ 250 V ac
    -55°C
    +125°C
    -
    RS PRO
    4A
    Radial
    250V ac
    T
    Thermoplastic
    -
    8.35mm
    4.3mm
    7.7mm
    22mm
    5.08mm
    40 A @ 250 V ac
    -55°C
    +125°C
    -
    RS PRO
    1.5A
    Axial
    125V ac/dc
    T
    Epoxy Coated
    2.65mm
    -
    -
    7.1mm
    28mm
    -
    50 A @ 125 V ac/dc
    -55°C
    +125°C
    -
    RS PRO
    1.25A
    Radial
    250V ac
    F
    Nylon
    8.5mm
    -
    -
    8mm
    4.3mm
    5.08mm
    35 A
    -40°C
    +85°C
    -
    RS PRO
    500mA
    Radial
    250V ac
    F
    Thermoplastic
    8.35mm
    -
    -
    7.7mm
    22mm
    5.08mm
    35 A @ 250 V ac
    -55°C
    +125°C
    -
    RS PRO
    750mA
    Axial
    250V ac
    T
    Epoxy Coated
    3.18mm
    -
    -
    7.1mm
    28mm
    -
    50 A @ 250 V ac/125 V dc
    -55°C
    +125°C
    -
    RS PRO
    1A
    Radial
    250V ac
    T
    Nylon
    8.5mm
    -
    -
    8mm
    4.3mm
    5.08mm
    35 A
    -40°C
    +85°C
    -
    RS PRO
    1A
    Axial
    250V ac
    T
    Epoxy Coated
    3.18mm
    -
    -
    7.1mm
    28mm
    -
    50 A @ 250 V ac/125 V dc
    -55°C
    +125°C
    -
    RS PRO
    5A
    Axial
    250V ac
    FF
    Epoxy Coated
    3.18mm
    -
    -
    7.1mm
    28mm
    -
    50 A @ 250 V ac
    -55°C
    +125°C
    -
    RS PRO
    4A
    Radial
    250V ac
    F
    Nylon
    8.5mm
    -
    -
    8mm
    4.3mm
    5.08mm
    40 A
    -40°C
    +85°C
    -
    RS PRO
    5A
    Radial
    250V
    SB
    Thermoplastic
    8.35mm
    -
    -
    7.7mm
    22mm
    5.08mm
    50 A @ 250 V ac
    -55°C
    +125°C
    -
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