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Electro polished enclosure (control station), explosion-proof A municipal electrical enclosure Allen Bradley programmable logic controller (PLC) installed in an electrical enclosure An electrical enclosure is a cabinet for electrical or electronic equipment to mount switches , knobs and displays and to prevent electrical shock to equipment ...
A key switch (sometimes called a keyswitch or lock switch) is a key-operated switch. [1] Key switches are used in situations where access to the switch's functions needs to be restricted. [2] [3] Key switches are available as components with solder connections, and are available with a variety of ampere ratings. They may use tubular or other ...
These require a simple key or tool to operate, and thus discourage casual or accidental operation of the switch. [3] [4] In some devices, the switch is built into a keyed lock mechanism, which prevents unauthorized use of the device. In this type of vandal-proof system, when the key is turned in the lock, the user can turn the equipment on.
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The key can then be used to unlock the kiln door. While the key is removed from the switch interlock, a plunger from the interlock mechanically prevents the power switch from being turned on. Power cannot be re-applied to the kiln until the kiln door is locked, releasing the key, and the key is then returned to the power switch interlock. [5]
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