Product Manual

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Reading a Lincoln Motors Model Number
There is no independently established standard for setting up a motor’s
model number, but the procedure is typically tied to descriptions of
various electrical and mechanical features. While other manufacturers
use other designations, here is how Lincoln Motors model numbers are
configured.
EXAMPLE:
Position No. A B C D E F G H
Sample Model No. SRF 4 S 0.5 T C 1C6028 TP2
Position A: Frame Material
A, AA = Extruded aluminum
AV = Alum 63 frame
AP = Alum 71 frame
AR = Alum 80 frame
C = Cast iron
M = Steel (encapsulated windings, 284T-445T frames)
S = Steel (143T-449T frames)
SP = Steel (48 frames)
SR = Steel (56 frames)
SS = Steel (143T-215T frames)
CC = Cast iron (143T and larger)
Enclosure (follows Frame Material*):
A = TEAO FW = TEFC, Washdown
B = TEBC FX = TE, Explosion-proof
D = ODP NW = TENV, Washdown
E = ODP-Encapsulated RA = TEAO, Steel
EW = Wash-Thru
TM
Motor NX = XP, TENV
F = TEFC YF = TEFC, Metric
RN = Steel TENV 48 frame PA = Steel 48 frame
N = TENV PN = Steel TENV 48 frame
P = Severe Duty IEEE 841 RN = Steel TENV 48 frame
S = Severe Duty
Position B: Number of Magnetic Poles:
this leads to motor
synchronous speed (rpm).
Speed Speed
Poles 60 Hz 50 Hz
2 3600 RPM 3000 RPM
4 1800 1500
6 1200 1000
8 900 750
Single speed motors:
4 = 1800 (60 Hz) or 1500 (50 Hz)
Two speed motors:
2/4/1 = 3600 and 1800 (60 Hz), one winding
4/8/2 = 1800 and 900 (60 Hz), two windings
Position C: Efficiency Level:
B = Exceeds NEMA MG-1 Table 12-10
G = Below NEMA MG-1 Table 12-10, GM7EQ
P = Meets EPAct, NEMA MG-1 Table 12-10
and GM-7EH.
S, H = Below NEMA MG-1 Table 12-10
Position D: Horsepower:
Single speed motor examples: 0.25, 0.5, 1.5, 75, 800
Horsepower range example: 5-7 = 5 to 7
Two speed motor example:
10/2.5 = 10 HP high speed, 2.5 HP low speed
Position E: NEMA Frame Series and Dimensions:
T or U = sets frame number and dimensions in
accordance with NEMA T or U design standards
for the motor’s HP, speed and enclosure.
E = Metric design IEC
Position F: Shaft and Mounting:
AD = Auger drive R = Resilient mount
C = C-Face, B14 S = NEMA short shaft
D = D-Flange, B5 Y = special mounting
J = Jet Pump (ie. extended thru-bolts)
JM = JM Pump Mount Z = non-standard shaft
JP = JP Pump Mount dimensions (-1, -2, -3,
L = Locked bearing etc. will appear at the
N = No feet end of the Model
Number)
Double shaft motors are identified by two symbols, the first
for the “normal drive end” and the second for the “opposite
normal drive end”: SD4B30TTM61Y and SD4P75TSTS61Y
Each end of the double shaft can have its own
mounting: MD4S125TSCTSC61 and CS6P15TTMC61Y
Mounting symbols are listed in alphabetical order when
more than one is specified: SSD2S25TJMN61
Position G: Electrical Type (Single Phase Only):
1A = permanent split capacitor
1B = capacitor start, capacitor run
1C = capacitor start, induction run
1N = split phase start, capacitor run
1S = split phase
Frequency:
6_ = 60 Hz and 5_ = 50 Hz
Voltage:
The specific number has no significance. Lincoln will
assign the next number in sequence to a new, previously
unmanufactured voltage when it is ordered.
Motors