Author: Brian April 8, 2015

Looking at an electrical plan, or reading an electrical specification, and wondering what all the abbreviations are?

Well here are some of the more common ones you may encounter, many with links to other posts:

3ph – Three Phase Power
AC – Alternating Current
ACU – Air Conditioning Unit
CB – Circuit Breaker
DC– Direct Current
DH – Ducted Heating Unit
DIM – Dimmer
DGPO – Double General Power Outlet
ECU – Evaporative Cooling Unit
ELCB – Earth Leakage Circuit Breaker
GPO – General Power Outlet
IP – Ingess Protection. Range from a basic IP 30 (standard outlet) to IP67 (fittings to withstand total immersion in water)
JB – Junction Box
LV – Low Voltage
LED – Light Emitting Diode
HW– Hot Water Unit
M – Meter
MSB – Main Switchboard
RA -Return Air (from Ducted Heating/Air Conditioning)
RCD – Residual Current Device
RF – Roof Access
SB – Switchboard
S – Sensor
SEN – Sensor
WP – Weather Proof

See Jargon for more posts