Electrical Code…
- Switch, Bypass Isolation
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A manually operated device used in conjunction with a transfer switch to provide a means of directly connecting load conductors to a power source and of disconnecting the transfer switch.
- Switch, General-Use
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A switch intended for use in general distribution and branch circuits. It is rated in amperes, and it is capable of interrupting its rated current at its rated voltage.
- Switch, General-Use Snap
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A form of general-use switch constructed so that it can be installed in device boxes or on box covers, or otherwise used in conjunction with wiring systems recognized by this code.
- Switch, Isolating
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A switch intended for isolating an electrical circuit from the source of power. It has no interrupting rating, and it is intended to be operated only after the circuit has been opened by some other means.
- Switch, Motor-Circuit
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A switch rated in horsepower that is capable of interrupting the maximum operating overload current of a motor of the same horsepower rating as the switch at the rated voltage.
- Switch, Transfer
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An automatic or nonautomatic device for transferring one or more load conductor connections from one power source to another.
(National Electrical Code® 100-1)