EngineeringEBooksPdf.
A Four Way Switch
A four-way switch works with
three- way switches control
a light receptacle from three
or more locations. has two brass-colored
terminals and "on" and "off"
markings the handle. has four
brass-colored terminals and
no "on" and "off" markings. There are "on"
and "off" markings.
• Switches Should 48" High from Floor.
Sh CEILING PULL SWITCH
CLOCK OUTLET
THERMOSTAT
GENERATOR
ELECTRIC MOTOR
NIGHT LIGHT
PUSH BUHON
DOORBELL
-f~7 DOOR BUZZER
-PH RADIO OUTLET
-TV TELEVISION
SINGLE POLE" SWITCH
DOUBLE-POLE SWITCH
THREE-WAY SWITCH
FOUR-WAY SWITCH
WEATHERPROOF SWITCH
All About Switches
A Single Pole Switch
A single-pole switch controls
a light receptacle from one
location.
A Three Way Switch
Three-way switches, used pairs to
control light receptacle from two
locations, have three terminals; one
black copper-colored and two brass
or silver-colored. 21
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• Switches Should Always Put Same Side Door that the Door Knob on.Electrical Symbols and Wiring Layout
CEILING OUTLET
WALL OUTLET
L CEILING LIGHTING OUTLET
DUPLEX CONVENIENCE OUTLET
SWITCH CONVENIENCE OUTLET
WP
WEATHERPROOF OUTLET
ELECTRIC RANGE
ELECTRIC DRYER
230-VOLT POLARIZED OUTLET
SPECIAL PURPOSE OUTLET
F) CEILING FAN
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FJ WALL FAN
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O CEILING JUNCTION BOX
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J WALL JUNCTION BOX
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