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Switches & Relays

Switches and relays are electronic components that are used to control the flow of electrical current in a circuit. A switch is a simple device that has two or more conductive contacts that can be opened or closed to allow or interrupt the flow of electrical current.  Switches are available in many different configurations, including toggle, push-button, rocker, and slide. A relay is an electrically operated switch that uses an electromagnet to open or close a circuit. Relays are used to control the flow of electrical current in a circuit remotely or automatically.

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Knob Plastic Pointer 1/4 Shaft Black - Folders
$2.70

Knob Plastic Pointer 1/4 Shaft Black

Folders

A classic, retro knob with a narrow pointer, grub screw fixing and brass ferrule insert.* 6.36mm or 1/4 Dia shaft Specifications: C...

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$2.80
$2.80 - $2.80
$2.80
$2.70
$2.70 - $2.70
$2.70
Black Push On Style Knob - Folders
$1.75

Black Push On Style Knob

Folders

These knobs just push on to a standard 0.25 (1/4) shaft. - No more messy screws. - Complete with coloured cap. Specifications: Colour /...

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$2.10
$2.10 - $2.10
$2.10
$1.75
$1.75 - $1.75
$1.75
22mm Black Anodised Knob - Folders
$12.90

22mm Black Anodised Knob

Folders

With grub screws.- Suits 0.25/6.35mm shaft. - Solid aluminium construction.1 knob per pack Specifications: Colour / Finish B...

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$12.90 - $12.90
$12.90
$12.90
$12.90 - $12.90
$12.90
16mm Knob - Matching Equipment Style - Folders
$3.90

16mm Knob - Matching Equipment Style

Folders

Plastic knobs with 1/4 shaft grubscrew fixing.- Modern fluted style with slot for pointer and small skirt.1 knob per pack Specifications:...

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$4.10
$4.10 - $4.10
$4.10
$3.90
$3.90 - $3.90
$3.90
32mm Knob - Black Plastic Aluminium Insert - Folders
$4.70

32mm Knob - Black Plastic Aluminium Insert

Folders

- All have white pointers- 0.25/6.3mm shafts.1 knob per pack Specifications: Colour / Finish Black Colour Coded (Insert/Ma...

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$4.70 - $4.70
$4.70
$4.70
$4.70 - $4.70
$4.70
15mm Metric Knob - Black - Folders
15mm Metric Knob - Black - Folders
$2.70

15mm Metric Knob - Black

Folders

Push on metric knobs, which suit our new small 9mm mini potentiometers.- Will fit all standard metric shafts.- 15mm (AT BASE) X 11mm (AT TOP) ...

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$2.80
$2.80 - $2.80
$2.80
$2.70
$2.70 - $2.70
$2.70
24mm Knob - Matching Equipment Style - Folders
$4.60

24mm Knob - Matching Equipment Style

Folders

Four plastic knobs with 1/4 shaft grubscrew fixing.- Modern fluted style with slot for pointer and small skirt.1 knob per pack Specificat...

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$4.70
$4.70 - $4.70
$4.70
$4.60
$4.60 - $4.60
$4.60
29mm Black Anodised Knob - Folders
$13.90

29mm Black Anodised Knob

Folders

With grub screws.- Suits 0.25/6.35mm shaft. - Solid aluminium construction.1 knob per pack Specifications: Colour / Finish B...

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$13.90 - $13.90
$13.90
$13.90
$13.90 - $13.90
$13.90
35mm Knob - Matching Equipment Style - Folders
$5.40

35mm Knob - Matching Equipment Style

Folders

Plastic knob with 1/4" shaft grubscrew fixing. - Modern fluted style with slot for pointer and small skirt. Specifications: Colour / Fi...

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$5.70
$5.70 - $5.70
$5.70
$5.40
$5.40 - $5.40
$5.40
12mm Knob - Matching Equipment Style - Folders
$3.40

12mm Knob - Matching Equipment Style

Folders

Plastic knobs with 1/4 shaft grubscrew fixing.- Modern fluted style with slot for pointer and small skirt.1 knob per pack Specifications:...

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$3.50
$3.50 - $3.50
$3.50
$3.40
$3.40 - $3.40
$3.40
45mm Knob - Black Plastic Aluminium Insert - Folders
$5.70

45mm Knob - Black Plastic Aluminium Insert

Folders

- All have white pointers- 0.25/6.3mm shafts.1 knob per pack Specifications: Colour / Finish Black Colour Coded (Insert/Ma...

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$5.90
$5.90 - $5.90
$5.90
$5.70
$5.70 - $5.70
$5.70
Knob Plas Push On 18T Spline Gry/Wh - Folders
$2.20

Knob Plas Push On 18T Spline Gry/Wh

Folders

These knobs simply push on to a standard 18 tooth spline.Complete with coloured pointer and skirtHK-7730 - RedHK-7731 - YellowHK-7732 - GreenH...

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$2.30
$2.30 - $2.30
$2.30
$2.20
$2.20 - $2.20
$2.20
Knob Plastic Push On 18T Spline Gry/Blu - Folders
$2.20

Knob Plastic Push On 18T Spline Gry/Blu

Folders

These knobs simply push on to a standard 18 tooth spline.Complete with coloured pointer and skirtHK-7730 - RedHK-7731 - YellowHK-7732 - GreenH...

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$2.30
$2.30 - $2.30
$2.30
$2.20
$2.20 - $2.20
$2.20
Knob Plastic Push On 18T Spline - Grey/Gr - Folders
$2.20

Knob Plastic Push On 18T Spline - Grey/Gr

Folders

These knobs simply push on to a standard 18 tooth spline.Complete with coloured pointer and skirtHK-7730 - RedHK-7731 - YellowHK-7732 - GreenH...

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$2.30
$2.30 - $2.30
$2.30
$2.20
$2.20 - $2.20
$2.20
Knob Plastic Push On 18T Spline Gry/Yel - Folders
$2.20

Knob Plastic Push On 18T Spline Gry/Yel

Folders

These knobs simply push on to a standard 18 tooth spline.Complete with coloured pointer and skirtHK-7730 - RedHK-7731 - YellowHK-7732 - GreenH...

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$2.80
$2.80 - $2.80
$2.80
$2.20
$2.20 - $2.20
$2.20
Knob Plastic Push On 18T Spline Grey/Red - Folders
$2.20

Knob Plastic Push On 18T Spline Grey/Red

Folders

These knobs simply push on to a standard 18 tooth spline.Complete with coloured pointer and skirtHK-7730 - RedHK-7731 - YellowHK-7732 - GreenH...

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$2.30
$2.30 - $2.30
$2.30
$2.20
$2.20 - $2.20
$2.20
Grey Push On Style Knob - Folders
$1.75

Grey Push On Style Knob

Folders

These knobs just push on to a standard 0.25 (1/4) shaft. - No more messy screws. - Complete with coloured cap. Specifications: Colour /...

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$1.85
$1.85 - $1.85
$1.85
$1.75
$1.75 - $1.75
$1.75
Yellow Push On Style Knob - Folders
$1.75

Yellow Push On Style Knob

Folders

These knobs just push on to a standard 0.25 (1/4) shaft. - No more messy screws. - Complete with coloured cap. Specifications: Colour /...

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$1.85
$1.85 - $1.85
$1.85
$1.75
$1.75 - $1.75
$1.75
Green Push On Style Knob - Folders
$1.75

Green Push On Style Knob

Folders

These knobs just push on to a standard 0.25 (1/4) shaft. - No more messy screws. - Complete with coloured cap. Specifications: Colour /...

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$1.85
$1.85 - $1.85
$1.85
$1.75
$1.75 - $1.75
$1.75
Numbered Knob - Skirt with Number 1-10 - Folders
$4.70

Numbered Knob - Skirt with Number 1-10

Folders

0 - 10  Specifications: Colour / Finish Black Colour Coded (Insert/Marking) Silver Shape Cylindrical ...

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$4.70 - $4.70
$4.70
$4.70
$4.70 - $4.70
$4.70
22mm Brushed Aluminium Knob - Folders
$11.90

22mm Brushed Aluminium Knob

Folders

Features a high quality brushed aluminium finish, an engraved pointer and very attractive appearance, making them suitable for Hi Fi projects ...

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$11.90 - $11.90
$11.90
$11.90
$11.90 - $11.90
$11.90
16mm Brushed Aluminium Knob - Folders
16mm Brushed Aluminium Knob - Folders
$10.50

16mm Brushed Aluminium Knob

Folders

Features a high quality brushed aluminium finish, an engraved pointer and veryattractive appearance, making them suitable for Hi Fi projects o...

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$10.50 - $10.50
$10.50
$10.50
$10.50 - $10.50
$10.50
16mm Black Anodised Knob - Folders
16mm Black Anodised Knob - Folders
$10.50

16mm Black Anodised Knob

Folders

With grub screws.- Suits 0.25/6.35mm shaft. - Solid aluminium construction. Specifications: Colour / Finish Black Anodised ...

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$10.50 - $10.50
$10.50
$10.50
$10.50 - $10.50
$10.50
29mm Numbered Knob - Skirt with Number 0 - 9 - Folders
$4.70

29mm Numbered Knob - Skirt with Number 0 - 9

Folders

0 - 9 Specifications: Colour / Finish Black Colour Coded (Insert/Marking) Silver Shape Cylindrical wi...

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$4.90
$4.90 - $4.90
$4.90
$4.70
$4.70 - $4.70
$4.70
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