FULL FORM
FULL FROM
REC rectifier
REV reverse
RH rheostat
SSW safety switch
SEC secondary
1PH single-phase
SOL solenoid
SW switch
T1, T2, T3 motor terminal connections
3PH three-phase
TD time delay
TRANS transformer
AC alternating current
ARM armature
AUTO automatic
BKR breaker
COM common
CR control relay
CT current transformer
DC direct current
DB dynamic braking
FLD field
FWD forward
GRD ground
HP horsepower
L1, L2, L3 power line connections
LS limit switch
MAN manual
MTR motor
M motor starter
NEG negative
NC normally closed
NO normally open
OL overload relay
PH phase
PL pilot light
POS positive
PWR power
PRI primary
PB push button
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