14.Electrical abbreviations AutoCAD blocks
14.Electrical abbreviations AutoCAD blocks
under floor duct junction box,
dual system
triple system
underfloor duct & junction box,
pull box
junction box
welder outlet
weatherproof
weight: watertight
welded wire fabric
well water; warm white
“wiremold” (surface raceway)
wire guard
with
wire; watt; wide; west; waste
(and night light with ‘nl’ subscript)
light fixture connected to emergency circuit
track light fixture
emergency lighting unit
arrow, wall
exit light with directional
arrow, ceiling
exit light with directional
exit light, wall
exit light, ceiling
light, wall
light, ceiling
light, ceiling
conduit, in wall or ceiling
conduit, below floor
conduit, exposed
conduit, turning up
surface raceway (“wiremold”)
horn
clock (wall)
clock (ceiling)
pushbutton
up/down pushbutton
up/down/stop pushbutton
circuit number
3-way
switch leg
transformer
combination disconnect & magnetic motor starter
magnetic motor starter
manual motor starter with pilot switch
manual motor starter
disconnect
3-phase motor
1-phase motor
floor outlet
power pole
drop cord (as noted)
connection (as noted)
special outlet or equipment
isolated ground duplex receptacle
double duplex (quad) receptacle
ground fault circuit interrupter
isolated ground double duplex (quad) receptacle
duplex receptacle
double duplex (quad) ground fault circuit
interrupter receptacle
single receptacle
weatherproof duplex receptacle
ground fault circuit interrupter/
duplex receptacle
control panel (as noted), surface
control panel (as noted), flush
panel, surface
panel, flush
indicates minimum wire size per specifications
isolated ground conductor
ground conductor
neutral conductor
phase (or control) conductor
electrical ground
panel name
lighting contactor
relay panel
photocell
timeclock
bell
microphone outlet
horn-paging
ceiling mounted speaker (round)
ceiling mounted speaker (square)
speaker volume control
wall mounted speaker (round)
wall mounted speaker (square)
buzzer
intercom call switch
video projector rough-in
telephone outlet, floor
wireless access point
wall phone outlet
data outlet, wall
combination telephone/data outlet
television outlet
data outlet, floor
telephone/data outlet, floor
telephone outlet
voice command center
located at each device
individual circuit numbers are
circuit number
panel name
two pole wall occupancy sensor
single pole wall occupancy sensor
passive infrared ceiling occupancy sensor
ultrasonic ceiling occupancy sensor
multi-technology ceiling occupancy sensor
switch leg
circuit number
light fixture type
switch, single pole
switch, double pole
conduit, turning down
conduit, capped
single system
underfloor duct & junction box,
switch, four way
switch, key operated
switch, with pilot light
switch, weatherproof
switch, explosionproof
switch, dimmer
switch, three way
south
short circuit rating
schedule
short-circuit current-rating
service drop
service entrance; service equipment
slim line; service lateral
secondary
supply fan; square foot
solid neutral
single pole
surge protective device
single pole, double throw
speaker
single pole, single throw
square
stainless steel; safety switch
square inch
square foot
service raceway; surface raceway
start/stop
steel: shunt trip; single throw
structural
starter
standard
subcontractors
surface
synthetic
system
switching duty
symmetrical
square yard
switchboard
switch
solenoid valve
unfinished
unshielded twisted pair
undervoltage relay (release)
utility
unless otherwise indicated
terminal block
temperature; transformer
time clock
time delay
temperature control contractor
telephone
tetrafluoroethylene
top of finished floor
transformer
thick
total harmonic distortion: thread
trigger start
tamper resistant
underground feeder
underwriters laboratory
underground
unit heater
ultra high frequency
under (cabinet or counter)
typical
transient voltage surge suppressor
television
telephone terminal board
thousand; material; mechanical; meter
machine
milliampere
magnetic starter
manual
maintenance
material
master antenna television
maximum
metal clad cable; mechanical contractor;
motor controller
motor control center
main circuit breaker
minimum circuit amps
molded case circuit breaker
motor circuit protector
thousand circular mils
motor circuit switch
main distribution frame
main distribution panelboard
mechanical
medium
manufacturing
manufacturer
manhole; metal halide; man-hour
megahertz
malleable iron; mineral insulated
microphone
main lug only
miscellaneous
minimum; minute
month
mobilization
maximum overcurrent protection
mounting
mogul
mounted
multi; multiply
manual transfer switch
megawatt
megavolt amperes
megavolt amperes reactive
mercury vapor, megavolt; medium voltage
north; new; neutral
not to scale
number; normally open
non-metallic sheathed cable
night light
not in contract
non-fused disconnect
non-fused
non-automatic
not available; not applicable
natural
normally closed
normal duty
national electrical code
national electrical manufacturers association
feet per minute
foot; feet
fire rating
full voltage non-reversing
furnished
fitting; footing
ampere
air-conditioning
alternating current; armored cable
adjustable
ampere fuse; ampere frame
above finished floor
above finished grade
air handling unit
ampere interrupting capacity
ampere
aluminum
aluminum
alternate
american wire gauge
auxiliary
average
automatic transfer switch
ampere trip
asymmetrical
architect
approximate
access panel
american national standards institute
gallon
ground
gauge
galvanized rigid conduit
ground; grounded
galvanized rigid steel
general purpose
gallons per minute
ground
galvanized
ground fault protector
ground fault interrupter
general contractor
general; generator
ground fault circuit interrupter
high
heating, air conditioning & refrigeration
heavy duty
hand hole
mercury
high output
high interrupting capacity
hand-off-automatic
horizontal
high pressure sodium
high power factor
horsepower; high pressure
hour
hours per day
high short circuit
height
heating
hertz
hydraulic
heaters
hight voltage
heating, ventilation & air-conditioning
hot water; heavy wall
heating water pump
battery
board
below finished grade
building
branch
breaker
bolted pressure switch
conduit; centigrade
center to center
cabinet
capacity
circuit breaker
closed circuit television
candela; clothes dryer
cubic feet; compact fluorescent
chilled water
chilled water pump
cast in place
circuit
circuit
construction manager
cooling; ceiling
current limiting fuse
cylinder
cubic yard
cabinet unit heater
cool white; cold water; clothes washer
cubic foot
copper; cubic
current transformer
control power transformer
central station air conditioner
control panel
condensate; conductor
continuous; continued; contractor
column
combination
concrete
compressor
concrete masonry unit
central office
central office ground bar
frequency modulation; factory mutual
floor
fluorescent
full load amps
fixture
figure
finished
fused; fahrenheit
fire alarm
fire alarm control panel
fire alarm annunciator panel
fan coil unit
foot-candle
fused disconnect
feeder
fluorinated ethylene propylene
foodservice facilities equipment contractor
volt amperes
volt; ventilation
very high frequency
variable frequency drive
vertical
video display terminal
variable air volume
volt-amperes reactive
vaportight
very high output
volume
wye
transfer
transformer
extra heavy duty
delta
degree
phase; diameter
pound; number
at
percent
feet
inches
approximately
overhead and profit
on center; overcurrent
outside diameter
overhead distribution system
overhead
overhead door
overload
office principal ground point
outside screw and yoke
ounce
quantity
pole; pull
public address
pushbutton; pull box
power connector; photocell
protective device
power factor
professional engineer
power factor correction capacitor
phase
post indicator valve
package
pilot light
panelboard
plumbing
pair
primary
pounds per square inch
pounds per square foot
pounds per square inch gauge
per unit
potential transformer
polyvinyl chloride
power
relay control station
resistance; relocated; recessed
receptacle
recirculating
reference; refrigerated
required
return
return fan
running load amps
rigid galvanized steel
room
root mean square
rigid non-metallic conduit
rainproof
revolutions per minute
restroom
rapid start
remove & replace
rigid steel conduit
raintight
joule; junction
junction box
junction box
interrupting capacity
inside diameter
intermediate distribution frame
institute of electrical & electronics
engineers
inside frosted
isolated ground
intermediate metal conduit
impedance
inch
incandescent
instant start
invert elevation
interior; internal
insulation; insulated
installation
included; including
thousand
thousand circular mils
kitchen equipment contractor
kilovolt
keypad
kirk key
kilohertz
kilowatt-hour
kilowatt
kilovolt ampere
kilovolt ampere reactive
direct expansion
drawing
dishwasher
dustproof; double pole
dusttight; double throw
double pole, single throw
double pole, double throw
disconnect
down
distribution
diffuser
diameter
diagonal
diameter
decibel; direct buried
deep; depth; discharge
direct current
domestic hot water
drinking fountain
direct digital control
each
equipment only; east; electrical; existing
electric baseboard radiation
electronic ballast
electrical contractor
exhaust fan
equipment grounding conductor
exterior insulation finish system
elevator; elevation
electrician; electrical; electronic
emergency
emergency
energy management system
electrical metallic tubing
enclosure
engine; engineered
engineer
explosionproof; electric-pneumatic
equipment
existing to remain
estimated
energy saver
electric water heater
electric water cooler
existing
excavation
existing
exterior
existing
exposed
exhaust
existing relocated
length; long
low voltage
letter
lighting
locked rotor amps
light; liquid-tight
low power factor
lumen
lockout
lighting panel
lamp lumen depreciation
long; length; large
linear foot
labor; laboratory
pound; ell conduit body
light emitting diode
laboratory equipment company (contractor)
fire alarm control panel
fire alarm annunciator
manual pull station
fire alarm speaker-strobe
fire alarm bell
magnetic door holder
smoke detector
duct type smoke detector
heat detector
fire alarm strobe light
sprinkler flow switch
sprinkler tamper switch
door contact
video surveillance camera (wall)
video surveillance camera (ceiling)
keypad
passive infrared detector
miscellaneous
power equipment
communications
typical device designations
receptacles and outlets
room circuit designations
technology
panels
security
typical wiring designations
fire alarm systems
switches
raceways
light fixtures
electrical abbreviations
I also suggest downloading Electric Symbols.
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