Rotary Switch Knobs

Rotary switch knobs are control knobs that fit various types of rotary switches, rotary encoders and shafts. They play an important role in making a device easier to control by adjusting levels. The degree of rotation applied to the switch knob corresponds to the desired input.

How do rotary switch knobs work?
Once connected to a switch, rotary switch knobs typically work with a clockwise rotation producing an increased input. They are controlled by hand, with a scale or pointer to help achieve the right setting. Rotary switch knobs often have contoured or ridged sides for grip and ease of use.

Types of rotary switch knobs
Rotary switch knobs come in a selection of shaft diameters, making them suitable for use with a wide range of switches. Most switch knobs are made from polyester or nylon and have a brass insert for a tighter fit with the shaft. Choosing the right switch depends on the application. There are right angle, through-hole mounting and surface mount versions with press-on and set-screw attachments. They are designed with slits or lines to display the current selection on the switch and come in a selection of colours.

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Description Price Accessory Type For Use With
RS Stock No. 278-1458
Mfr. Part No.U4944
BrandAPEM
£1.196
Each (In a Pack of 5)
Units
Knob Rotary Switch
RS Stock No. 878-0287
Mfr. Part No.11K5029-ECNB
BrandGrayhill
£0.658
Each (In a Pack of 50)
Units
Control Knob Encoders, Rotary Switch
RS Stock No. 125-1889
Mfr. Part No.AT4103C
£1.926
Each (In a Pack of 5)
Units
Rotary Switch Knob FR01 Series Rocker Switch, MR Series Rocker Switch
RS Stock No. 379-3862
Mfr. Part No.U651
BrandHartmann
£0.752
Each (In a Pack of 5)
Units
Knob PT 65
RS Stock No. 125-1888
Mfr. Part No.AT4103B
£1.926
Each (In a Pack of 5)
Units
Rotary Switch Knob FR01 Series Rocker Switch, MR Series Rocker Switch
RS Stock No. 878-0280
Mfr. Part No.947705-001
BrandGrayhill
£0.479
Each (In a Pack of 50)
Units
Knob Rotary DIP Switch
RS Stock No. 379-3913
Mfr. Part No.U656
BrandHartmann
£0.696
Each (In a Pack of 5)
Units
Knob PT 65
RS Stock No. 782-1277
Mfr. Part No.KR104
£0.896
Each (In a Pack of 5)
Units
Shaft Size Adapter 1/4in → 1/8in Potentiometer Shafts
RS Stock No. 278-1442
Mfr. Part No.U4943
BrandAPEM
£1.196
Each (In a Pack of 5)
Units
Knob Rotary Switch
RS Stock No. 379-3884
Mfr. Part No.U653
BrandHartmann
£0.744
Each (In a Pack of 5)
Units
Knob PT 65
RS Stock No. 125-1890
Mfr. Part No.AT4180
£0.53
Each (In a Pack of 10)
Units
Snap-On Knob FR01 Series Rocker Switch
RS Stock No. 788-5136
Mfr. Part No.ACCRFBOUTON20JF
BrandVishay
£43.75
Each
Units
- -
RS Stock No. 167-9914
Mfr. Part No.ACCRFBOUTON20JF
BrandVishay
£36.108
Each (In a Pack of 5)
Units
- -
RS Stock No. 878-0284
Mfr. Part No.947705-012
BrandGrayhill
£0.592
Each (In a Pack of 50)
Units
Knob Rotary DIP Switch
RS Stock No. 693-1231
Mfr. Part No.U654/1
BrandApem
£0.70
Each (In a Pack of 5)
Units
Knob Rotary Switch
RS Stock No. 379-3890
Mfr. Part No.U655
BrandHartmann
£0.866
Each (In a Pack of 5)
Units
Knob PT 65
RS Stock No. 2508608135
Mfr. Part No.HD-50-2-6
£9.27
Each
Units
- -
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