Rheostats | Linear & Wirewound | RS
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    Rheostats

    A rheostat is a variable resistor which is used to control current or vary resistance within an electrical circuit. They are able to vary the resistance in a circuit without interruption. Rheostats are very similar in construction to potentiometers, but they are designed to work with higher currents. Rheostats are used in motor speed controls, dimmer switches any any applications which require control of the flow of an electric current.

    How do rheostats work?

    Rheostats use two connections, even when 3 terminals are present, the first connection is made to one end of the resistive element and the other connection to the wiper (sliding contact). Resistive wire is wound around an insulating ceramic core, as the wiper slides over the windings the resistance, and therefore current, produced is altered.

    Types of Rheostat

    • Rotary type – Mostly used in power control applications. Rotary rheostats feature a turnable shaft that adjusts the resistance. They are used to control multiple applications in parallel or to increase the power rating or adjusting range.
    • Slide type – Slide rheostats, or linear rheostats, are often used for education and in laboratory environments. Linear or slide types are constructed of resistive wire wound on an insulating cylinder, a sliding contact moves along the winding to increase or decrease the resistance.

    What is the difference between a potentiometer and a rheostat?

    Both a rheostat and a potentiometer are a type of variable resistor. They feature a similar construction, however, a rheostat features 2 terminals and a potentometer features 3 terminals. A primary difference in functionality is that a rheostat is often implemented to change current, while pots can be used to change the voltage within a circuit.

    83 Produkter som visas för Rheostats

    • RS-artikelnummer 168-0120
    • Tillv. art.nr RT025AS1500KB
    Var (i ett paket med 25)
    2 586,528 kr
    Vishay
    150Ω
    ±10%
    25W
    1
    Panel Mount
    6 mm
    10.5mm
    Solder Lug
    38 x 50mm
    -
    -
    -
    50mm
    -
    +320°C
    • RS-artikelnummer 144-5530
    • Tillv. art.nr RHS5K0E
    Varje
    1 308,94 kr
    Arcol Ohmite
    5kΩ
    10%
    25W
    1
    Panel Mount
    6.35 mm
    -
    Solder
    39.62 x 34.93mm
    500 Vrms
    39.62mm
    -
    34.93mm
    0.070A
    -
    • RS-artikelnummer 168-0066
    • Tillv. art.nr RT012AS1000KB
    Var (i ett paket med 25)
    4 298,784 kr
    Vishay
    100Ω
    ±10%
    12W
    1
    Panel Mount
    3 mm
    6.5mm
    Solder Lug
    22.5 x 40mm
    -
    -
    -
    40mm
    -
    +320°C
    • RS-artikelnummer 891-5553
    • Tillv. art.nr RKS500E
    Varje
    1 642,76 kr
    Ohmite
    500Ω
    ±10%
    100W
    1
    Panel Mount
    6.35 mm
    -
    Solder Lug
    79.38 x 44.45mm
    1000 Vrms
    -
    -
    44.45mm
    0.447A
    -
    • RS-artikelnummer 168-0115
    • Tillv. art.nr RT012AS2201KB
    Var (i ett paket med 25)
    4 621,21 kr
    Vishay
    2.2kΩ
    ±10%
    12W
    1
    Panel Mount
    3 mm
    6.5mm
    Solder Lug
    22.5 x 40mm
    -
    -
    -
    40mm
    -
    +320°C
    • RS-artikelnummer 788-7668
    • Tillv. art.nr RT012AS1000KB
    Varje
    3 263,14 kr
    Vishay
    100Ω
    ±10%
    12W
    1
    Panel Mount
    3 mm
    6.5mm
    Solder Lug
    22.5 x 40mm
    -
    -
    -
    40mm
    -
    +320°C
    • RS-artikelnummer 788-7665
    • Tillv. art.nr RT012AS2201KB
    Varje
    4 078,93 kr
    Vishay
    2.2kΩ
    ±10%
    12W
    1
    Panel Mount
    3 mm
    6.5mm
    Solder Lug
    22.5 x 40mm
    -
    -
    -
    40mm
    -
    +320°C
    • RS-artikelnummer 168-0118
    • Tillv. art.nr RT025AS15R0KB
    Var (i ett paket med 25)
    2 968,896 kr
    Vishay
    15Ω
    ±10%
    25W
    1
    Panel Mount
    6 mm
    10.5mm
    Solder Lug
    38 x 50mm
    -
    -
    -
    50mm
    -
    +320°C
    • RS-artikelnummer 144-5525
    • Tillv. art.nr RHS10RE
    Varje
    1 264,26 kr
    Arcol Ohmite
    10Ω
    10%
    25W
    1
    Panel Mount
    6.35 mm
    -
    Solder
    39.62 x 34.93mm
    500 Vrms
    39.62mm
    -
    34.93mm
    1.58A
    -
    • RS-artikelnummer 891-5398
    • Tillv. art.nr RHS1K0E
    Varje
    1 308,94 kr
    Arcol Ohmite
    1kΩ
    ±10%
    25W
    1
    Panel Mount
    6.35 mm
    -
    Solder Lug
    39.62 x 34.93mm
    500 Vrms
    -
    -
    34.93mm
    0.155A
    -
    • RS-artikelnummer 168-0128
    • Tillv. art.nr RT025AS4R70KB
    Var (i ett paket med 25)
    2 828,717 kr
    Vishay
    4.7Ω
    ±10%
    25W
    1
    Panel Mount
    6 mm
    10.5mm
    Solder Lug
    38 x 50mm
    -
    -
    -
    50mm
    -
    +320°C
    • RS-artikelnummer 167-8663
    • Tillv. art.nr RT055AS1001KB
    Var (i ett paket med 25)
    7 969,92 kr
    Vishay
    1kΩ
    ±10%
    55W
    1
    Panel Mount
    6 mm
    10.5mm
    Solder Lug
    60 x 64mm
    -
    64mm
    -
    60mm
    -
    +320°C
    • RS-artikelnummer 167-9820
    • Tillv. art.nr RT025AS47R0KB
    Var (i ett paket med 25)
    2 465,434 kr
    Vishay
    47Ω
    ±10%
    25W
    1
    Panel Mount
    6 mm
    10.5mm
    Solder Lug
    38 x 50mm
    -
    -
    -
    50mm
    -
    +320°C
    • RS-artikelnummer 795-4838
    • Tillv. art.nr RT055AS1001KB
    Varje
    6 852,16 kr
    Vishay
    1kΩ
    ±10%
    55W
    1
    Panel Mount
    6 mm
    10.5mm
    Solder Lug
    60 x 64mm
    -
    64mm
    -
    60mm
    -
    +320°C
    • RS-artikelnummer 144-5529
    • Tillv. art.nr RHS50RE
    Varje
    1 264,26 kr
    Arcol Ohmite
    50Ω
    10%
    25W
    1
    Panel Mount
    6.35 mm
    -
    Solder
    39.62 x 34.93mm
    500 Vrms
    39.62mm
    -
    34.93mm
    0.707A
    -
    • RS-artikelnummer 788-7829
    • Tillv. art.nr RT025AS2R20KB
    Varje
    3 006,42 kr
    Vishay
    2.2Ω
    ±10%
    25W
    1
    Panel Mount
    6 mm
    10.5mm
    Solder Lug
    38 x 50mm
    -
    -
    -
    50mm
    -
    +320°C
    • RS-artikelnummer 891-5512
    • Tillv. art.nr RJS50RE
    Varje
    1 303,85 kr
    Arcol Ohmite
    50Ω
    ±10%
    50W
    1
    Panel Mount
    6.35 mm
    -
    Solder Lug
    58.67 x 34.93mm
    750 Vrms
    -
    -
    34.93mm
    1A
    -
    • RS-artikelnummer 168-0127
    • Tillv. art.nr RT025AS4700KB
    Var (i ett paket med 25)
    2 586,528 kr
    Vishay
    470Ω
    ±10%
    25W
    1
    Panel Mount
    6 mm
    10.5mm
    Solder Lug
    38 x 50mm
    -
    -
    -
    50mm
    -
    +320°C
    • RS-artikelnummer 168-0117
    • Tillv. art.nr RT025AS1000KB
    Var (i ett paket med 25)
    2 465,434 kr
    Vishay
    100Ω
    ±10%
    25W
    1
    Panel Mount
    6 mm
    10.5mm
    Solder Lug
    38 x 50mm
    -
    -
    -
    50mm
    -
    +320°C
    • RS-artikelnummer 788-7807
    • Tillv. art.nr RT025AS1500KB
    Varje
    2 749,04 kr
    Vishay
    150Ω
    ±10%
    25W
    1
    Panel Mount
    6 mm
    10.5mm
    Solder Lug
    38 x 50mm
    -
    -
    -
    50mm
    -
    +320°C
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