"mechanical switch" is a correct and usable phrase in written English.
You can use it when referring to a device that is operated by physical manipulation, typically using a handle or lever, and that controls the flow of electricity to a device. For example, "The old-fashioned doorbell was powered by a simple mechanical switch."
The ABB breaker is a hybrid design that combines the speed of a semiconductor device with the efficiency of a mechanical switch.
Nadrian C. Seeman, a professor of chemistry at New York University, has used DNA to make three-dimensional "stick figures" like cubes and also a mechanical switch that flips between two positions when a chemical is added to the solution.
Undoubtedly the most effective means by which our societies could be safeguarded from cyberattacks would be to roll back the clock — to go back to the pen, typewriter, paper and mechanical switch.
Almost if there's a mechanical switch behind each one.
The main DC breaker cuts off the current when the mechanical switch is opened [21].
Each mechanical switch activates a different function of the watch as seen in the diagrams in the product pages.
Our study reveals the hidden switching mechanisms of ferroelectric domains and the possible roles of surface in mechanical switching.
But a more important advantage is that, unlike mechanical switches, they can manage electrical flow more subtly.
The air-conditioning controls are electronic, eliminating the clunk of mechanical switches; the cup holders operate on silky smooth pivots.
Mechanical switches can only be open or closed, but the electronic switches can act more like water valves, letting some of the current through.
Scientists there are making computer memory using nanotubes -- rolled-up sheets of carbon graphite -- that open and close like mechanical switches.
