permanent magnet generator
silicon controlled rectifier
(electrical), selective catalytic
reduction (exhaust emissions)
not available, not applicable
Systeme international d’unites,
International System of Units
National Bureau of Standards
programmable read-only
memory
pounds per square inch gauge
simple mail transfer protocol
National Electrical
Manufacturers Association
positive temperature coefficient
simple network management
protocol
National Fire Protection
Association
single-pole, double-throw
single-pole, single-throw
pulse width modulated, pulse
width modulation
National Pipe, Straight-coupling
National Standard taper pipe
thread per general use
replacement (emergency)
power source
National Pipe, Taper-Fine
not required, normal relay
original equipment
manufacturer
radio frequency interference
transmission control protocol
round head machine (screw)
Occupational Safety and Health
Administration
time delay engine cooldown
Office of Statewide Health
Planning and Development
(California)
time delay emergency to
normal
time delay normal to
emergency
time delay off to emergency
resistance temperature
detectors
total harmonic distortion
telephone influence factor
Phillips
®
head Crimptiter
(screw)
room temperature vulcanization
Phillips
®
hex head (screw)
Society of Automotive
Engineers
typical (same in multiple
locations)
programmable logic control
standard cubic feet per minute
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