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    Rotary Switches & Components

    Rotary switches are a broad subcategory of switch types that operate through a rotational action. They’re especially widespread components in devices and circuits that require a single switch to offer more than two positions or functions.

    Our rotary switches and accessories include a huge selection of switch configurations, as well as numerous options for add-ons and spares, such as:

    • Rotary switch dials, knobs, caps and collet knob dials
    • Rotary switch shaft assemblies and spindles
    • Rotary switch lock mechanisms, screens and spacers
    • Rotary switch rotating open circuits

    Leading brands we work with to source high quality, durable, excellent value rotary switches and component parts include Arcol, Knitter-Switch, Honeywell, NSF, Vishay, RS PRO, Hartmann, NKK Switches and TE Connectivity.

    How are rotary switches typically used?

    Rotary switches are common HMI (human-machine interface) components in numerous kinds of industrial equipment, as well as in a wide range of consumer appliances.

    They’re sometimes preferred over other control input methods, such as touch-screens, in applications where software error could be problematic or hazardous. They’re also widely used on mechanical equipment featuring complex circuits where a single switch position needs to open/close various combinations of different contacts at once.

    How do rotary switches work?

    • Rotary switches turn around a spindle connected to a shaft assembly. This spindle, or rotor, is positioned such that it can make contact with any number of different attached electrical circuits as the rotary switch turns.
    • In this way, rotary switches are capable of incorporating greater numbers of poles and throws than most other types of simple in-line switches
    • Rotary switches are usually designed to be stepped, rather than completely smooth or linear in operation, to prevent stalling at intermediate stages between two or more connected circuits - although several such dial-based variants are also available.
    • The most common assembly type for modern rotary switches involves a ‘star wheel’ mechanism to switch positions at set intervals (say, 30, 45, 60 or 90 degrees)
    • Depending on the number of positions required, some rotary switches also employ a toothed washer below the holding nut, to limit or increase the number of available slots a given switch can click between

    3733 Products showing for Rotary Switches & Components

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    • RS Stock No. 793-1718
    • Mfr. Part No. MA05L1NCQD
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    £14.36
    • RS Stock No. 321-329
    • Mfr. Part No. 500395-000-000-000
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    £53.10
    • RS Stock No. 221-2836
    • Mfr. Part No. KBA1H
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    £13.79
    • RS Stock No. 288-4704
    • Mfr. Part No. L21MA03A
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    £22.07
    • RS Stock No. 454-8269
    • Mfr. Part No. 260172 NZM1-XTVDV
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    £92.71
    • RS Stock No. 218-056
    • Mfr. Part No. K10F013QCH
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    £53.99
    • RS Stock No. 454-8275
    • Mfr. Part No. 260178 NZM1-XTVDVR
    Each
    £99.94
    • RS Stock No. 269-9739
    • Mfr. Part No. 000699 TM-2-8550/EZ
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    £52.21
    • RS Stock No. 352-187
    • Mfr. Part No. MU457848FPA(MA)
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    £59.58
    • RS Stock No. 103-8419
    • Mfr. Part No. 024639 T0-2-1/E
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    £20.47
    • RS Stock No. 221-2834
    • Mfr. Part No. KAXZ1C12
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    £10.13
    • RS Stock No. 276-1630
    • Mfr. Part No. KAA1H
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    £16.57
    • RS Stock No. 123-9620
    • Mfr. Part No. SRRM1C6200
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    £11.49
    • RS Stock No. 746-8970
    • Mfr. Part No. KAC1H
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    £11.22
    Better World
    • RS Stock No. 351-3830
    • Mfr. Part No. 9001KA2G
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    £14.10
    • RS Stock No. 283-6811
    • Mfr. Part No. CBS1-1X24B
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    £60.17
    • RS Stock No. 327-585
    • Mfr. Part No. MU452274MSD1
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    £67.43
    • RS Stock No. 285-8657
    • Mfr. Part No. PR 12-1102 A4 E Q48PN
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    £21.93
    • RS Stock No. 428-9516
    • Mfr. Part No. MR-K206
    Each
    £13.24
    • RS Stock No. 218-175
    • Mfr. Part No. K10B002ACH
    Each
    £27.82
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