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445TSTDCD14051 – Marathon 250 HP Fire Pump Motor, 3 phase, 1800 RPM, 460 V, 445TS Frame, ODP – U540A

445TSTDCD14051 – Marathon 250 HP Fire Pump Motor, 3 phase, 1800 RPM, 460 V, 445TS Frame, ODP – U540A

445TSTDCD14051 Marathon Fire Pump Motors

  • Designed for use on pumps for fire pump duty
  • UL file EX5190, CSA file LR2025 and CE mark
  • 50°C ambient
  • Red paint on 25 HP through 200 HP
  • NEMA Design B, Code G or less
  • Rated 60/50 hertz, 190/380 or 380 volt at next lower horsepower
  • 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

Marathon Motors
Regal Beloit

Description

445TSTDCD14051 – Marathon 250 HP Fire Pump Motor, 3 phase, 1800 RPM, 460 V, 445TS Frame, ODP – U540A

445TSTDCD14051 Marathon Fire Pump Motors

General Specifications

UPC: 722856068125 Weight: 0 LB
Packaged Length: 49.6 IN Packaged Width: 38.18 IN
Packaged Height: 35.43 IN

Nameplate Specifications

Output HP: 250 Hp Output KW: 187.0 kW
Frequency: 60/50 Hz Voltage: 460 V
Current: 278.0 A Speed: 1788 rpm
Service Factor: 1.15 Phase: 3
Efficiency: 95.5 % Power Factor: 87
Duty: Continuous Insulation Class: F
Design Code: B KVA Code: F
Frame: 445TS Enclosure: Drip Proof
Thermal Protection: No Ambient Temperature: 50 °C
Drive End Bearing Size: 6319 Opp Drive End Bearing Size: 6317
UL: Listed CSA: Y
CE: Y IP Code: 23

Technical Specifications

Electrical Type: Squirrel Cage Induction Run Starting Method: Part Wdg Start & Wye Start Delta Run
Poles: 4 Rotation: Reversible
Resistance Main: .022 Ohms Mounting: Rigid Base
Motor Orientation: Horizontal Drive End Bearing: Ball
Opp Drive End Bearing: Ball Frame Material: Cast Iron
Shaft Type: TS Overall Length: 45.95 in
Frame Length: 31.10 in Shaft Diameter: 2.375 in
Shaft Extension: 4.75 in Assembly/Box Mounting: F1/F2 CAPABLE

Speed Characteristics

Curvepoint Current (Amps) Current (%) Torque (ft-lbs) (%) Speed (RPM) Rated Output (KW) Power Factor (%) Rated Output (Hp)
Break-Down 900.00 1,600.00 217.0 1,600 62.0 250.00
Pull-Up 1,500.00 1,150.00 900 250.00
Locked-Rotor 1,675.00 1,400.00 190.0 0 38.0 250.00
1/3 1,600.00 1,150.00 600 250.00
Full Load 278.00 100.0 736.00 100.0 1,788 87.0 250.00
No Load 72.00 0.00 0.0 1,800 4.5 250.00
2/3 1,400.00 1,400.00 1,200 250.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 %
Current (Amps) 72.00 96.00 148.00 210.00 278.00 320.00 350.00
Rated Output (KW) 3.20 50.00 98.00 145.00 195.00 225.00 245.00
Efficiency (%) 0.0 93.6 95.4 95.8 95.4 95.0 94.5
Power Factor (%) 4.5 65.0 82.0 86.0 87.0 87.5 87.5
Speed (RPM) 1,800 1,796 1,794 1,790 1,788 1,786 1,784
Temp. Rise @ FL 0.0 0.0 0.0 0.0 60.0 80.0 0.0
Torque (ft-lbs) 0.00 183.00 366.00 550.00 736.00 847.00 922.00

Marathon Motors
Regal Beloit