AMAZON multi-meters discounts / AMAZON oscilloscope discounts
House Wiring Symbols
CIRCUITS
Branch Circuits, Concealed in Ceiling or Wall
Branch Circuits, Concealed in Floor
Branch Circuits, Exposed
Without further designation, symbols at left indicate 2-wire.
For other designate as follows:
Home Run to Panel Board
Number of Arrowheads Indicates Number of Circuits.
Feeder Ceiling Wall
GENERAL OUTLETS
Outlet Blanked Outlet Clock Outlet Drop Cord Fan Outlet Unit Heater or Cooler Outlet Junction Box Lampholder
Lampholder with Pull Switch Ceiling Wall
Ceiling Recessed Incandescent Outlet Vapor Discharge Lamp Outlet Exit Light Night Light Wall H Fluorescent Fixture Outlet (Surface or Pendent)
Fluorescent Fixture Outlet (Recessed)
Continuous Row Fluorescent
Continuous Row Fluorescent (Recessed)
CONVENIENCE OUTLETS
Duplex Ceiling or Wall
Other than Duplex indicates
Radio Outlet Single.
3 Triplex, etc. I Radio and 1,3* R mg)
Waterproof WP
* Convenience Outlet Special Purpose Outlet
Range
Switch and Outlet
Floor Outlet
25 - 0 20 amp 0V
Receptacle (Polarized)
30 amp 25W
Receptacle (Polarized)
SWITCH OUTLET DESIGNATIONS
S - Single-Pole Switch Sp - Switch and Pilot Light S2 - Double-Pole Switch Smc- Momentary-Contact Switch S 3 - Three-Way Switch SRC - Remote Control Switch S 4 - Four-Way Switch Swp - Waterproof Switch SD - Automatic Door Switch Isolating S E Switch - Explosion-Proof Switch Pull S K- Key-Operated Switch
Switch Ceiling Wall
PANELS
CB "Circuit Lighting Breaker Panel"
Motor Controller or Power Panel
Generator
Instrument
Motor
Underfloor Duct or Junction Box (Triple System)
• For single duplex system system use 1 line, 2 lines, etc.
Buzzer Po Push Button Bell
AUXILLARY SYSTEMS
Annunciator
Thermostat
Outside
Telephone
Interconnecting Telephone
Floor Telephone Outlet-Public
Floor Telephone Outlet-Private