Outback Power Systems GS4048A Installation Manual - Manual (Page 42)

Terms and Definitions
40 900-0160-01-00 Rev A
Table 5 Terms and Definitions
Term Definition
EPO Emergency Power Off; a switching product used for emergency shutdown
GFDI Ground Fault Detector Interruptor; a safety device for PV systems
GND Ground; a permanent conductive connection to earth for safety reasons; also known as
Chassis Ground, Protective Earth, PE, Grounding Electrode Conductor, and GEC
Grid/Hybrid™ System technology which optimizes both grid-interactive and off-grid options
Grid-interactive,
grid-intertie, grid-tie Utility grid power is available for use and the inverter is a model capable of returning
(selling) electricity back to the utility grid
GSLC GS Load Center; the wiring box for the Radian (GS) inverter
HUB A line of OutBack communications manager products
IEC International Electrotechnical Commission; an international standards organization
MATE3 An OutBack system display, used for monitoring, programming and communicating
with the inverter
NEU AC Neutral; also known as Common
Neutral-to-ground
bonding A mechanical connection between the AC neutral (Common) bus and the ground (PE)
bus; this bond makes the AC neutral safe to handle
Off-grid Utility grid power is not available for use
PV Photovoltaic
RELAY AUX Auxiliary connection that uses switch (relay) contacts to control external devices.
RTS Remote Temperature Sensor; accessory that measures battery temperature for charging
Split-phase A type of utility electrical system with two “hot” lines 180° out of phase, common in
North America; each line typically carries 120 Vac (or the nominal line voltage) with
respect to neutral and 240 Vac with respect to each other
System display Remote interface device (such as the MATE3), used for monitoring, programming and
communicating with the inverter; also called “remote system display”
Three-phase, 3-phase A type of utility electrical system with three “hot” lines, each 120° out of phase;
each carries the nominal line voltage with respect to neutral; each carries voltage with
respect to each other equaling the line voltage multiplied by 1.732
Utility grid The electrical service and infrastructure supported by the electrical or utility company;
also called “mains”, “utility service”, or “grid”