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MOTORS
Totally Enclosed, Rigid Base
Features
• Ball bearings (except as noted)
• 1.15 Service Factor (except as noted)
• 60/50 hertz at next lower horsepower, as noted
• Will accept C-Face Kits as noted, also see Accessories section
• UL recognized and CSA certied
Application
General purpose use on pumps, fans, blowers, compressors, conveyors, and other industrial machinery installed in damp, dusty, or dirty
environments. Additionally, cast iron frame motors may be suitable for the process industries.
Application
General purpose use on gear reducers, pumps, machine tools, and other direct-coupled equipment installed in damp, dusty, or dirty environments.
Additionally, cast iron frame motors may be suitable for the process industries.
Suitable for use on VFD per guidelines on page 120
2
Requires nameplate modification
2
Requires nameplate modification
Item ID HP RPM Volts Frame Model No.
CT Speed
Range
2
Nom.
E. F.L. Amps
Weight
(lbs.)
Shaft Dim.
(in.)
Length Less
Shaft (in.) Notes
C-Face
Kits
Marathon
K154 1/3 1800 208-230/460 56 5K49FN4136 — 69.2 1.5-1.6/.8 20 5/8 x 1 7/8 8.85
20
A536
K158 1/2 1800 208-230/460 56 5K35MNB117 — 76.1 2.1-2.2/1.1 19 5/8 x 1 7/8 9.05
19
AG215
K159 1/2 1200 208-230/460 56 5K49MN6079 — 72.0 2.6-2.6/1.3 27 5/8 x 1 7/8 9.55
5, 19
A536
K161M 3/4 1800 208-230/460 56 5K36PNB111 — 78.9 2.8-2.8/1.4 20 5/8 x 1 7/8 9.48
19
AG215
K162 3/4 1200 208-230/460 56 5K46PN6082 — 76.1 2.9-2.8/1.4 27 5/8 x 1 7/8 9.95
68
AG215
G347A 1 1800 208-230/460 56 056T17F15666 2:1 85.5 3.3/1.65 42 5/8 x 2 5/16 12.3
68
A437
G360A 1 1200 230/460 56H 056T11F15525 — 82.5 3.8/1.9 37 5/8 x 1 7/8 11.42
18, 68
A536
G365A 1 1/2 1800 230/460 56H 056T17F15668 — 86.5 4.6/2.3 35 5/8 x 1 7/8 12.96
5, 18, 68
A536
Item ID HP RPM Volts Frame Model No. Nom. E. F.L. Amps
Weight
(lbs.)
Shaft Dim.
(in.)
Length Less
Shaft (in.) Notes
Marathon
K255 3/4 1800 208-230/460 56C 5K36PNB116 78.9 2.8-2.8/1.4 20 5/8 x 1 7/8 9.48
19, 24, 68
G544A 2 1800 208-230/460 56C 056T17F15665 86.5 6.2-6.0/3.0 47 5/8 x 1 7/8 13.27
24, 68
Features
• Ball bearings, mechanically locked on shaft end (excludes 5K models)
• Rated 60/50 hertz, 190/380 or 380 volt, at next lower horsepower (as noted)
• 1.15 Service Factor (except as noted)
• Rolled steel 56-145T frame motors accept brake kits
• UL recognized and CSA certied
Totally Enclosed, C-Face Footless
Notes:
5. 56H, 143T, and 145T Combination Base with 12 mounting holes
18. 1.15 Service Factor
19. 1.25 Service Factor
20. 1.35 Service Factor
24. Motor will NOT accept a Brake kit
68. Rated 60/50 hertz, 190/380 or 380 volt at next lower horsepower
Totally Enclosed, C-Face Footed (Rigid Base)
Item ID HP RPM Volts Frame Model No. Nom. E. F.L. Amps
Weight
(lbs.)
Shaft Dim.
(in.)
Length Less
Shaft (in.)
Marathon
GT1201 1 1765 208-230 143TC 143TTFR6032 85.5 3.3/1.65 42 7/8 x 2 1/8 11 3/4
Suitable for use on VFD per guidelines on page 120.
Features:
Meets or exceeds NEMA Premium
®
efficiencies
NEMA Premium
®
models are in compliance with EISA2007
• Cast iron frame and brackets
• Inverter Duty 10:1 Variable Torque and 10:1 Constant
Torque, 1.0 SF (except as noted)
• 1.15 Service Factor
• Class F Insulation
• Standard assembly F1, reversible to F2 assembly
• UL recognized, CSA certified, CE mark
MARATHON GENERAL PURPOSE, THREE PHASE