Key Switch

Stock code: 2001

Pricing:Ex VATInc VAT
1+ £2.25
(excl. VAT)
(inc. VAT)
10+ £2.15 £2.58
In stock

Bundled options

Key Switch plus Kitronik alarm kit

large key switch+ large alarm kit

Total: £8.25ex VAT


Same Day Dispatch

  • Orders placed online before 3:00pm Monday - Friday (excluding public holidays and our Christmas shutdown period) are always dispatched the same day provided the goods are in stock. If the goods are not in stock we will endeavour to contact you as soon as possible to discuss a dispatch date.

UK Deliveries

  • If you live on the UK mainland and don't have any large materials or lithium batteries in your order it will cost £3.95 (£4.74 including VAT) if you spend less than £40 (£48 including VAT).
  • If you spend between £40 and £200 (£48 - £240.00 including VAT, excluding large materials or lithium batteries) delivery is free to most locations, £12 (£14.40 including VAT, excluding large materials or lithium batteries) to Northern Ireland and £15 (£18.00 including VAT, excluding large materials or lithium batteries) to UK remote locations. For a list of postcodes that will be charged the remote location rate: remote area list.
  • If you spend over £200 (£240.00 including VAT, excluding large materials or lithium batteries) delivery is free within the UK.

Rest of the world

  • These orders are sent via UPS, and the cost is dependant on the service you choose at checkout. Alternatively you can choose the free collection option and have your own courier collect it from us. International orders can only be shipped to the registered card address. Please note: International orders may be charged import duty dependant on local import laws and duty rates. These charges are usually billed to you directly from UPS.
  • Delivery times vary for international orders depending on the service selected and the destination. You can see the delivery time and cost at the shipping stage, or by using the shipping estimator from within the shipping basket.


  • If you would like to collect your order, or use your own courier then there is an option you can select during checkout. We do not charge a packaging or handling fee for this service, and you will receive an email when your order has been processed, you can collect half an hour after receipt of this email.

Further Information

How would I attach the key switch to the alarm project kit? Thanks
Asked by: colin farrington
Hi Colin, Thank you for your question, this should be a simple change as the key switch has two contacts on the bottom. You would replace the slide switch with the key soldering the wire to the two contacts on the switch and this should allow you to switch on or off the power. best regards Cullen
Answered by: Cullen Lewis

What are the sizes and dimensions?
Asked by: Thomas Atherton
Hi Thomas, Thank you for your question. The main switch is 20mm long not including the solder points. The widest portion of the head is 15mm and the shaft is approximately 12mm Diameter as is the thinnest portion of the head. Best Regards Cullen
Answered by: Cullen Lewis

How big is the key switch? I need the measurements for my project, thanks
Asked by: Zac
Hi Zac, The switch itself is approx.: 25mm in length from front to back, 10.5mm in diameter around the main body, and 15mm in diameter for the front of the switch.
Answered by: Michael Lockhart

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?
Asked by: Chloe
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.
Answered by: Aaron Sturman

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