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Key Switch

This Key Activated Switch is a SPST switch. The key can be removed in both positions. Supplied with two keys.

Availability: In Stock.

Code1+ 10+
(£1.908 incl VAT)
(£1.548 incl VAT)

This key switch is a SPST (Single Pole Single Throw) switch which is activated by the key, turn one way to close the switch, the other to open.

The key can be removed in both positions, and the switch is supplied with two keys.

This key switch makes a great addition to our Alarm Project Kit.


  • SPST key switch.
  • Spare key supplied.


  • 1 x Key Switch.
  • 2 x Keys.


Posted by Mike Richards, Wednesday, 31 August 2016 on product Key Switch


Hi, Please could you let me know the dimensions of this component? Thanks


  • Posted by Michael Lockhart on Wednesday, 31 August 2016

    Hi Mike, the key switch is approximately 23mm in length including the two pins on the bottom, 15mm in width with the NUT and 10mm in width without the nut. The top of the switch is around 4mm thick and 15mm in width.

Posted by Thomas Harvey, Wednesday, 14 May 2014 on product Key Switch


I am buying these for my GCSE Resistant Materials docking station project and needed schematics, but could not find any?


  • Posted by Aaron Sturman on Wednesday, 14 May 2014
    Do you mean you need the dimensions?
Posted by Chloe, Monday, 28 April 2014 on product Key Switch


I have purchased some of these for Year 11 electronics GCSE Controlled Assessment - they are making security devices and alarms. Possibly a stupid question - how do you attach these to the circuit?


  • Posted by Aaron Sturman on Monday, 28 April 2014
    I don?t know which circuit you have but you just connect the two terminals on the switch as you would with a standard push to make switch. When the key is turned one way the switch closes when it is turned the other way the switch opens.

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