A Four Way Switch
A four-way switch works with
three- way switches control
a light receptacle from three
or more locations. 21
www.
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.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
*~*S
*~*\
FJ WALL FAN
«-^
*—<v
O CEILING JUNCTION BOX
**~s
*N
J WALL JUNCTION BOX
**^
. has four
brass-colored terminals and
no "on" and "off" markings.
• Switches Should 48" High from Floor.com
. has two brass-colored
terminals and "on" and "off"
markings the handle. There are "on"
and "off" markings.EngineeringEBooksPdf.
• Switches Should Always Put Same Side Door that the Door Knob on.
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
