Knife switches were more commonly used in electrical panels in prior years and are electrical switches that open or close a circuit when one or more of the blades come into contact with one or more clips as the switch is manually raised or lowered to activate contact.
Switch, light handle
Electrical switch which contains a small neon light in the toggle part, which is easily seen in a dark room.
Switch, loop
Electrical wiring that is run to a light through a switch, which causes the light to be the last electrical load of the circuit.
Switch, single pole, single throw
Electrical switch, the most common one used in buildings, which controls the outlet or light from only one place.
Switch, snap
Electrical switch, which can open or close contracts quickly with its spring mechanism, so that arcing can be avoided between contacts and is implemented in household switches and circuit breakers.
Switch, weatherproof
Electrical switch which has a cover to protect it from moisture when it is used outside.
Switchboard
Panel that houses the devices that control the electrical circuits.
Switchbox
Electrical box with the switch and conductors that connect the switch to the electrical system, which is normally mounted on a wall.
Switchgear
Device that completes or breaks the circuit to control that electrical circuit.
Switchgear, metal clad
Single metal cubicle type switch, which holds all the necessary equipment to control a circuit.
