Thumbwheel switches offer a straightforward, tactile method for setting numerical values in electronic instruments and control systems.
You can use an old rotary telephone dialer in conjunction with your microcontroller to implement all sorts of things; for example, you could use it to enter a series of numbers to unlock a safe. You ...
AutomationDirect has added enclosed versions and non-enclosed DIN rail and panel/door mount versions of Merz disconnect / motor control switches. Non-enclosed UL 508 / UL 60947 600VAC manual motor ...
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