Specifications

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Encoder Often refers to a digital device that provides angular position
information. Some encoders provide this information as
incremental pulses as position changes. Other types of encoders
provide a digital signal representative of absolute position.
Erasable Programmable A type of semiconductor memory often used for storage of data
Read Only Memory (EPROM) or programs that change infrequently, if at all. EPROMs must
be removed from the circuit to be erased and reprogrammed.
EPROMs retain their contents when power is turned off.
Explosion Proof (XP)
A motor enclosure type used in hazardous locations. Explosion
proof enclosures are also available for other types of equipment.
Farad The basic unit of capacitance. The symbol for the farad is “F.”
Feedback A signal provided to a control circuit that is representative of an
actual condition in a machine or process.
M
Motor
Drive
Tachometer
or Encoder
Feedback
Feeder Often refers to a set of conductors that originates at a main
distribution center and supplies power to one or more secondary
or branch distribution centers.
Feeders
Branches
Transformer Secondary Voltage
120/208 VAC, 3-Phase, 4-Wire
208 VAC
Electric
Heater
208 VAC
Parking Lot
Lighting
120 VAC
Lighting and
Receptacles
208 VAC
Air Conditioner
Feeder Busway Busway used to distribute feeder current to loads that are
sometimes remote from the power source.
Switchboard
Feeder Busway
Filler Plates Plates used to cover unused spaces in a panel.