Specifications

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Analog Output An output from a system that can continuously vary over a
range of current or voltage such as 4 to 20 milliamps or 0 to 10
volts.
Transducer Transmitter
Controller
Analog Output
Common Analog Values
0 to 10 VDC
4 to 20 mA
Meter
Apparent Power The vector sum of true power and reactive power. Apparent
power is calculated by multiplying current times voltage. The
unit for apparent power is the volt-ampere, abbreviated “VA.”
Reactive Power
in Volt-Amperes Reactive (VARs)
Apparent Power in V
olt-Amperes (V
A)
True Power in Watts (W)
Phase Angle
Arc Chute Assembly An assembly of metal plates surrounding circuit breaker or
contactor contacts. Arc chutes are used to reduce contact
damage by quickly extinguishing the arc created when contacts
open.
Arc Chute Assembly
Arc Quenched by
A
rc Chute Assembly
Arc Fault An electrical arc which results when current flows in unintended
ways, but in residential applications, often not in sufficient
amounts to cause a standard circuit breaker to trip. Residential
arc faults typically result from worn or damaged insulation and
are a common cause of fires. In larger applications, an arc fault
can cause an arc flash.