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 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 891-5597
    • Tillv. art.nr RLS25RE
    Varje
    2 120,08 kr
    Ohmite
    25Ω
    ±10%
    150W
    1
    Panel Mount
    6.35 mm
    -
    Solder Lug
    101.6 x 50.8mm
    1200 Vrms
    -
    -
    50.8mm
    2.45A
    -
    • RS-artikelnummer 891-5547
    • Tillv. art.nr RKS200E
    Varje
    1 446,14 kr
    Ohmite
    200Ω
    ±10%
    100W
    1
    Panel Mount
    6.35 mm
    -
    Solder Lug
    79.38 x 44.45mm
    1000 Vrms
    -
    -
    44.45mm
    0.707A
    -
    • RS-artikelnummer 891-5540
    • Tillv. art.nr RKS1K0E
    Varje
    1 877,43 kr
    Ohmite
    1kΩ
    ±10%
    100W
    1
    Panel Mount
    6.35 mm
    -
    Solder Lug
    79.38 x 44.45mm
    1000 Vrms
    -
    -
    44.45mm
    0.316A
    -
    • RS-artikelnummer 891-5537
    • Tillv. art.nr RKS100E
    Varje
    1 588,75 kr
    Ohmite
    100Ω
    ±10%
    100W
    1
    Panel Mount
    6.35 mm
    -
    Solder Lug
    79.38 x 44.45mm
    1000 Vrms
    -
    -
    44.45mm
    1A
    -
    • RS-artikelnummer 891-5468
    • Tillv. art.nr RJS16RE
    Varje
    915,04 kr
    Ohmite
    16Ω
    ±10%
    50W
    1
    Panel Mount
    6.35 mm
    -
    Solder Lug
    58.67 x 34.93mm
    750 Vrms
    -
    -
    34.93mm
    1.76A
    -
    • RS-artikelnummer 892-2403
    • Tillv. art.nr RPS100E
    Var (i ett paket med 10)
    2 559,296 kr
    Ohmite
    100Ω
    ±10%
    225W
    1
    Panel Mount
    9.53 mm
    -
    Solder Lug
    127 x 53.98mm
    1300 Vrms
    -
    -
    53.98mm
    1.5A
    -
    • RS-artikelnummer 891-5610
    • Tillv. art.nr RNS10RE
    Varje
    4 415,04 kr
    Ohmite
    10Ω
    ±10%
    300W
    1
    Panel Mount
    9.53 mm
    -
    Solder Lug
    152.4 x 60.33mm
    1225 Vrms
    -
    -
    60.33mm
    5.48A
    -
    • RS-artikelnummer 891-5515
    • Tillv. art.nr RJS5K0E
    Varje
    1 017,17 kr
    Ohmite
    5kΩ
    ±10%
    50W
    1
    Panel Mount
    6.35 mm
    -
    Solder Lug
    58.67 x 34.93mm
    750 Vrms
    -
    -
    34.93mm
    0.100A
    -
    • RS-artikelnummer 891-5458
    • Tillv. art.nr RJS10KE
    Varje
    902,28 kr
    Ohmite
    10kΩ
    ±10%
    50W
    1
    Panel Mount
    6.35 mm
    -
    Solder Lug
    58.67 x 34.93mm
    750 Vrms
    -
    -
    34.93mm
    0.070A
    -
    • RS-artikelnummer 144-5539
    • Tillv. art.nr RKS50RE
    Varje
    2 577,79 kr
    Arcol Ohmite
    50Ω
    10%
    100W
    1
    Panel Mount
    6.35 mm
    -
    Solder
    79.38 x 44.45mm
    1000 Vrms
    79.38mm
    -
    44.45mm
    1.41A
    -
    • RS-artikelnummer 891-5581
    • Tillv. art.nr RLS15RE
    Varje
    2 698,53 kr
    Arcol Ohmite
    15Ω
    ±10%
    150W
    1
    Panel Mount
    6.35 mm
    -
    Solder Lug
    101.6 x 50.8mm
    1200 Vrms
    -
    -
    50.8mm
    3.16A
    -
    • RS-artikelnummer 891-5506
    • Tillv. art.nr RJS4R0E
    Varje
    1 040,02 kr
    Ohmite
    ±10%
    50W
    1
    Panel Mount
    6.35 mm
    -
    Solder Lug
    58.67 x 34.93mm
    750 Vrms
    -
    -
    34.93mm
    3.53A
    -
    • RS-artikelnummer 144-5528
    • Tillv. art.nr RHS25RE
    Varje
    1 103,12 kr
    Arcol Ohmite
    25Ω
    10%
    25W
    1
    Panel Mount
    6.35 mm
    -
    Solder
    39.62 x 34.93mm
    500 Vrms
    39.62mm
    -
    34.93mm
    1A
    -
    • RS-artikelnummer 892-2456
    • Tillv. art.nr RUS1R0E
    Varje
    18 500,89 kr
    Ohmite
    ±10%
    1kW
    1
    Panel Mount
    9.53 mm
    -
    Solder Lug
    304.8 x 76.2mm
    1600 Vrms
    -
    -
    76.2mm
    31.6A
    -
    • RS-artikelnummer 891-5376
    • Tillv. art.nr RHS100E
    Varje
    1 103,12 kr
    Arcol Ohmite
    100Ω
    ±10%
    25W
    1
    Panel Mount
    6.35 mm
    -
    Solder Lug
    39.62 x 34.93mm
    500 Vrms
    -
    -
    34.93mm
    0.500A
    -
    • RS-artikelnummer 144-5524
    • Tillv. art.nr RHS10KE
    Varje
    1 419,04 kr
    Arcol Ohmite
    10kΩ
    10%
    25W
    1
    Panel Mount
    6.35 mm
    -
    Solder
    39.62 x 34.93mm
    500 Vrms
    39.62mm
    -
    34.93mm
    0.155A
    -
    • RS-artikelnummer 144-5532
    • Tillv. art.nr RJS1K0E
    Varje
    1 648,98 kr
    Arcol Ohmite
    1kΩ
    10%
    50W
    1
    Panel Mount
    6.35 mm
    -
    Solder
    58.67 x 34.93mm
    750 Vrms
    58.67mm
    -
    34.93mm
    0.224A
    -
    • RS-artikelnummer 144-5531
    • Tillv. art.nr RJS12RE
    Varje
    1 568,22 kr
    Arcol Ohmite
    12Ω
    10%
    50W
    1
    Panel Mount
    6.35 mm
    -
    Solder
    58.67 x 34.93mm
    750 Vrms
    58.67mm
    -
    34.93mm
    2.04A
    -
    • RS-artikelnummer 144-5536
    • Tillv. art.nr RJS6R0E
    Varje
    1 793,79 kr
    Arcol Ohmite
    10%
    50W
    1
    Panel Mount
    6.35 mm
    -
    Solder
    58.67 x 34.93mm
    750 Vrms
    58.67mm
    -
    34.93mm
    2.88A
    -
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