Marathon GT3503

Marathon · Close-Coupled Pump
1 1/2 HP 3600 143JP TEFC 575V Pump
Catalog Number: GT3503
Model Number: 143TTFR16015
HP
1 1/2
RPM
3600
Voltage
575V
Frame
143JP
Phase
3
Enclosure
TEFC
Material
Rolled Steel
Mounting
C-Face / Rigid

Product-line overview

Marathon’s line of pump motors has models for all applications, from centrifugal or circular pump motors to close-coupled or vertical motors. Select your electric motor replacement from a range of ratings and features; frame size, mounting options, enclosure type, RPM, HP, voltage, and more.

CAD$916.73
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Marathon: Close-Coupled Pump (332)

M316B53500208-230V, 460V182JMV $964.24
U363A33505230V, 460V145JM $1,040.68
GT3511A31185575V213JP $1,484.03
GT3515A7 1/23520575V213JP $1,563.20
GT3516A7 1/21768575V213JP $1,785.97
GT3518A103518575V215JP $1,911.55
U209A151770200V254JPV $1,918.10
GT3519A101762575V215JP $2,138.68
GT3419A101762230V, 460V215JP $2,138.68
U344A153535230V, 460V254JM $2,355.99
U210A151768230V, 460V254JPV $2,360.36
GT3521A153545575V254JP $2,387.66
GT3421A153545230V, 460V254JP $2,387.66
U225A253525200-230V, 460V256T $2,636.63
U219A201770230V, 460V256JP $2,773.68
U348A151775230V, 460V254JM $2,786.24
GT3524A203540575V256JP $2,816.27
GT3424A203540230V, 460V256JP $2,816.27
GT3522A151772575V254JP $2,898.17
GT3422A151772230V, 460V254JP $2,898.17
GT3517A7 1/21182575V254JP $3,100.73
U354A201775230V, 460V256JM $3,134.59
GT3527A253555575V284JP $3,216.49
GT3427A253555230V, 460V284JP $3,216.49
U351A203537230V, 460V256JM $3,254.71
GT3525A201768575V256JP $3,289.10
GT3425A201768230V, 460V256JP $3,289.10
GT3530A303550575V286JP $3,362.27
GT3430A303550230V, 460V286JP $3,362.27
GT3528A251772575V284JP $3,516.24
GT3428A251772230V, 460V284JP $3,516.24
GT3520A101180575V256JP $3,788.69
GT3420A101180230V, 460V256JP $3,788.69
GT3531A301770575V286JP $3,800.71
GT3431A301770230V, 460V286JP $3,800.71
GT3533A403565575V324JP $4,213.48
GT3433A403565230V, 460V324JP $4,213.48
GT3534A401782575V324JP $4,966.96
GT3434A401782230V, 460V324JP $4,966.96
GT3523A151182575V284JP $5,028.11
GT3423A151182230V, 460V284JP $5,028.11
GT3536A503568575V326JP $5,388.47
GT3436A503568230V, 460V326JP $5,388.47
GT3537A501782575V326JP $5,741.74
GT3437A501782230V, 460V326JP $5,741.74
GT3526A201180575V286JP $6,126.67
GT3426A201180230V, 460V286JP $6,126.67
GT3429A251184230V, 460V324JP $7,425.60
GT3532A301185575V326JP $8,552.00
GT3432A301185230V, 460V326JP $8,552.00

Feature

  • Meets or exceeds all USA mandated efficiencies
  • Division 2 / zone 2 class 1 (gases), groups A, B, C, D
  • NEMA® JP pump shaft dimensions
  • Suitable for use on a VFD. 10:1 variable torque and 2:1 constant torque
  • Dual rated motors are nameplated 60/50 hertz, 190/380 volts at next lower HP
  • Class F Insulation
  • Ball bearings, mechanically locked on shaft end
  • UL recognized, CSA certified and CE mark

OEM Replacement Pump Motor

Many pumps come with a motor pre-installed, so where do you find a replacement when the motor fails? It’s possible to contact the pump OEM and order a replacement, however, you’ll likely find a lower-cost, faster-shipping alternative online, without sacrificing quality. The potential cost savings come from decreasing the number of businesses involved in the motor supply chain and ordering directly from the manufacturer of the motor.

Because of standardized frame sizes, you’ll be able to find a replacement that exactly matches the OEM pump motor specifications. Confirm the below information on the motor nameplate to find a replacement:

  • Horsepower
  • RPM
  • Voltage
  • Frame Size
  • Enclosure
  • Phases
  • Mounting Type

Enter your product specifications on the left side menu on this page to filter your options. This will bring back several options to choose from, with varying prices and lead times.

If you’re unfamiliar with these product specs or need a second set of eyes, contact our expert team for support. We’re available Monday-Friday, 7am-6pm MT by phone or email.

Motors are distributed from Edmonton, Alberta; Toronto, Ontario; and Montreal, Quebec. Most pump motors will arrive within 1-5 business days to postal codes in Canada.

Jet Pump Motors

Similar to a jet engine, jet pump motors create large amounts of pressure. This is where the jet pump motor got its name. The pump generates suction to draw fluid into a chamber. A nozzle transforms the pressure into a high-pressure jet, allowing for efficient movement of fluid. These are different than submersible pumps, as the motor and pump are located at the surface, not submersed in fluid.

When searching for a replacement jet pump motor, confirm if your motor is a deep well or shallow well pump. The deep well pump can transport water from depths up to 200 feet. Whereas shallow well pump motors can transport from depths of up to 25 feet.

Keep in mind, a jet motor should never run dry as it could permanently damage the pump.

These are often used in residential pool pumps, industrial pumps, transfer and circulating pumps, and commercial machinery. Baldor, Century, Nidec (also known as US Motors or Emerson Motors), and Marathon manufacturer trusted jet pump motors used across Canada.

P Base / Vertical Motors

Different manufacturers use different nomenclature, but generally a P base motor will indicate a vertical mount pump motor. Because they are vertical, they’re designed to take high axial load but lower radial load. These are commonly used in irrigation pumps and water treatment. WEG offers a wide selection of vertical pump motors, ranging from 1 – 150 horsepower. Baldor vertical pump motors come in 3 –75 horsepower, but custom orders can be built over 2000 horsepower.

Nidec (US Motors) has the largest selection of any brand with both hollow & sold shaft, Medium & high thrust bearings, their range goes from 5 HP – 2000 HP.

Hydraulic Pump Motors

WEG’s hydraulic pump motors come in 5 horsepower, 7.5 horsepower, and 10 horsepower. These motors work with pumps to convert electrical energy into fluid pressure. These are often used for lifting loads in construction, excavating, and manufacturing applications.

Submersible Pump Motors

Baldor’s submersible pump motors are frequently used in wastewater facilities and are built to be completely submerse in liquid. They use the surrounding effluent to cool the motor. They also offer an immersible line of motors, which are designed with a unique seal system. While these motors are not meant to be continually submersed, they are ideal for applications where flooding could occur.

Close Coupled Pump Motors

What is a close coupled motor? The motor shaft and pump are rigidly connecting in a case. The casing is connected directly to the motor. Vs a frame mounted motor where the motor and pump are mounted on a common base plate, which are most common in higher horsepower applications. The close-coupled option is easier to install because the shaft and casing do not need to be aligned. Its design is compact, making it ideal for a confined plant room. Because an additional coupling does not need to be purchased, this is a lower cost option. However, there is a higher risk of motor damage if the pump seal fails. These pump motors are commonly used in transporting water and hazardous chemicals.

Close coupled pump motors may be categorized as JP or JM. The ‘J’ indicates close coupled and the second letter indicates the type of seal. A JP seal is a packing seal and a JM seal is a mechanical seal. These are not interchangeable so ensure you’ve confirmed which type of seal you need for your pump.

We distribute reputable motor brands including Baldor, Century, Marathon, and WEG, which are all stocked in Canada.

Electrical Data
Rated Motor Output Power
1 1/2 HP
1.125 kW
Rated Motor Speed
3600 RPM
Rated Motor Voltage
575V
Rated Motor Current
1.6 AMP
Phase
3
Poles
2
Locked Rotor Current
-
Fl Current @ 208V
-
Service Factor
1.15
KVA Code
M
Nominal Efficiency
84
Nominal Power Factor
83.5
Leads (Qty, Size)
-
Frequency
60 Hz
Connection
-
Start Capacitor
-
Run Capacitor
-
MFD
-
VFD (S.F. 1.0)
Ratio
Hz
Variable Torque
-
-
Constant Torque
-
-
General Data
Frame
143JP
Enclosure
TEFC
Mounting
C-Face / Rigid
Number of Speeds
-
Approximate Weight
63lb
Double Drilled
No
Frame Material
Rolled Steel
C-Dimension
18.63"
NEMA Design
B
Degree of Protection (IP)
IP43
Insulation Class
F
Rotation
Reversible
Duty
Continuous
Conduit Box Location
-
Removable Feet
No
Orientation
Horizontal
Ambient Temp
40°C
Full Load Temperature Rise
Full Load Temp Rise
-
Temp Code
-
Mechanical Data
DE Bearing
6203
NDE Bearing
6203
Shaft Diameter
0.875"
Shaft Length
7.31"
Grease Type
-
Greaseable
No
Hazardous Locations
CSA Certified
-
Temp Code (Sine Wave Power)
-
Temp Code (VFD Power)
-
Additional Information
Agency Approvals
CSA, UL & CE
Country of Origin
-
Warranty
1-Year

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About Marathon

With a strong presence in North America, Marathon Motors Canada ships directly from Toronto, Montreal, and Edmonton. Marathon is known for its wide variety of products, but offers specialized products for the HVAC, manufacturing, and Oil & Gas industries. Product offers including IEC and NEMA standard motors, allowing for brand consistency within manufacturing facilities.

The company implements rigorous quality control measures to ensure the reliability and durability of its electric motors. Backed by parent company Regal Rexnord, Marathon Motors offers a deep bench of expert technical support.

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