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EX 5/7/11 RT Systems
dBrnC
DC or dc
Earth ground
Electrician
FET
Freq.
Frequency slew rate
GND
Hz
I
IEC
IEEE
IGBT
Input branch circuit
Inverter
Inverter mode
I/O
I/T or IT
kVA
L
LCD
LED
Mains or Mains 1
Mains 2
mA
MAX.
MCM
N
NC
NEC
NFPA
NO
G — 2
Decibel above reference noise.
Direct current, or voltage.
A ground circuit that has contact with the earth.
Refers to an installation electrician qualified to install heavy-duty electrical components in
accordance with local codes and regulations. Not necessarily qualified to maintain or repair
electrical or electronic equipment.
Field effect transistor.
Frequency.
The change in frequency per unit of time. Given in term of Hz per second (Hz/sec.).
Ground (safety).
Hertz, frequency measurement unit, 1Hz is one cycle per second.
Current.
International Electrotechnical Commission.
Institute of Electrical and Electronic Engineers.
Insulated gate bipolar transistors.
The input circuit from the building power panel to the equipment.
An electrical circuit that generates an AC voltage source from a DC voltage source.
See "on-line" mode.
Input/Output.
Information Technology.
KiloVolt-Ampere; is equal to 1000 Volt-Ampere.
Line.
Liquid-Crystal Display unit.
Light Emitting Diode.
Main AC input source.
Bypass AC input source.
Milliampere.
Maximum.
Thousand circular mil; standard wire sizes for multiple stranded conductors over 4/0 AWG
in diameter. M is from Roman numerical system indicating 1000.
Neutral.
Normally closed.
National Electrical Code.
National Fire Protection Association.
Normally open.
Glossary
86-86000-00 B01
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