Add products to your shopping cart



Image for Illustration purposes only. Actual product may vary

Marathon U528A

model# 404TSTDCD4332
100 horsepower 1800RPM 404TS frame drip proof 3 phase 230/460 volt 60 hertz electric motor

Marathon U528A 404TSTDCD4332 100HP 1800RPM 404TS frame drip proof 3 phase 230/460 volt 60 hertz electric motor
  • Typically ships in: 1 day
  • Contact supplier for technical support on: 715-675-8090

$4,197.60 Each


Select Quantity

Unit of measure: each

Returnable: See conditions

Payment methods:

Return policy

Item must be unused.

Item must be in it's original package.

Return policy

Item must be unused.

Item must be in it's original package.

Request Specifications

Dear Customer by submitting this form You will be requesting the product specifications sheet for Marathon Electric U528A. Our customer service team will contact the manufacturer and send You the requested information by email.



Phone #




Additional Description

Regal Beloit Marathon U528A

UPC: 722856067852 | UNSPSC: 26101112 | GTIN:
Electric Motors > AC Motors

Marathon® AC Motor, 4-Pole Continuous-Duty Low Voltage, Fire Pump Motors Application, Squirrel Cage Induction Run Motors Special Features, 100 hp, 230/460 VAC, 228/114 A, 60 Hz Frequency, 3 ph ph, 1785 rpm Speed, 1 Speed, IP23 DP Enclosure, 404TS Frame, 2-1/8 in Dia x 4-1/4 in L Extension Shaft, Reversible Rotation, 1.15 Service Factor, Deep Groove Ball Bearing, 295 ft-lb Full Load Torque, Rigid Base Mounting, 50 deg C, Insulation Class: Class F, Cast Iron, 33.86 in L x 24.22 in H Dimensions


  • Designed for use on pumps for fire pump duty
  • Red paint on 25 hp through 200 hp
  • Will accept C-face kits
  • Single voltage motors have 12 leads and are suitable for wye-delta, across the line, or part winding start
  • Dual voltage motors have 12 leads, suitable for wye-delta or across the line start on either voltage, or part winding start on low voltage
  • Rated 60/50 Hz, 190/380 or 380 V at next lower horsepower


  • Service Factor: 1.15
  • Special Features: Squirrel Cage Induction Run Motors
  • Application Type: Fire Pump Motors
  • Insulation Class: Class F
  • Shaft Size: 2-1/8 in Dia x 4-1/4 in L Extension
  • Torque Rating: 295 ft-lb Full Load
  • Phase: 3 ph
  • Horsepower: 100 hp
  • Number of Speeds: 1
  • Rotation: Reversible
  • Frame: 404TS
  • Bearing Type: Deep Groove Ball
  • Temperature Rating: 50 deg C
  • Enclosure Type: IP23 DP
  • Speed: 1785 rpm
  • Frequency Rating: 60 Hz
  • Mounting Type: Rigid Base
  • Amperage Rating: 228/114 A
  • Voltage Rating: 230/460 VAC
  • Dimensions: 33.86 in L x 24.22 in H
  • Material: Cast Iron
  • Type: 4-Pole Continuous-Duty Low Voltage


  • Length: 42.12 in
  • Width: 35.03 in
  • Height: 32.67 in


CE Certified | CSA file LR2025 | UL file EX5190 | NEMA Design Code: B


12 months


SKU: 5812417


Very good price and prompt shipping

Read more

SKU: 2303511

Motor order

Best price, fast shipping.

Read more

SKU: 2270283

Good pricing quick delivery

Best pricing and fast delivery

Read more