Momentary On/Off Round Key Lock Switch - 12mm Diameter

AdafruitSKU: ADA5929
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AdafruitOn/Off Round Key Lock - 12mm Diameter
Sale price £2.40 incl. VAT excl. VAT
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AdafruitOn-Off Key Lock Switch - 12mm Diameter
Sale price £1.90 incl. VAT excl. VAT

MAJOR KEY ALERT we now stock 'Key Lock Switches'! These mechanical switches don't use a button, a lever, or a magnet to open and close the contacts. Instead, a literal key is used. This low-cost but effective key lock switch is nice and compact: you only need to drill a 12mm / 0.5" diameter hole in your mounting plate.

Insert the 'bike lock' style key and rotate it one turn clockwise. Now, the two contacts on the back are electrically connected and locked. Rotate it back counter-clockwise to disconnect the switches. This makes for an excellent 'On-Off' switch that requires the key to activate.

This key lock is 'momentary' style - because you cannot remove it once it's turned On. You have to rotate back to Off to remove the key. We also have a non-momentary style of this lock where the key is removable.

Please note: This is not for use in a nuclear warhead situation - each key lock order comes with the same keys. And it isn't hard to pick this lock, either. Think of this as a fun interface or minimal security setup where you aren't concerned with a skilled adversary.

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