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326TTDCD4344 – Marathon 50 HP Fire Pump Motor, 3 phase, 1800 RPM, 190/380-400 V, 326T Frame, ODP – U515A

326TTDCD4344 – Marathon 50 HP Fire Pump Motor, 3 phase, 1800 RPM, 190/380-400 V, 326T Frame, ODP – U515A

326TTDCD4344 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
  • Will accept C-Face kits, see Accessories section for 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

Marathon Motors
Regal Beloit

Description

326TTDCD4344 – Marathon 50 HP Fire Pump Motor, 3 phase, 1800 RPM, 190/380-400 V, 326T Frame, ODP – U515A

326TTDCD4344 Marathon Fire Pump Motors

General Specifications

UPC: 722856067647 Weight: 324 LB
Packaged Length: 34.25 IN Packaged Width: 27.16 IN
Packaged Height: 27.16 IN

Nameplate Specifications

Output HP: 50 Hp Output KW: 37.0 kW
Frequency: 60 Hz Voltage: 190/380-400 V
Current: 145.0/72.0-68.5 A Speed: 1775 rpm
Service Factor: 1.15 Phase: 3
Efficiency: 93.6 % Power Factor: 82
Duty: Continuous Insulation Class: F
Design Code: B KVA Code: G
Frame: 326T Enclosure: Drip Proof
Thermal Protection: No Ambient Temperature: 50 °C
Drive End Bearing Size: 6312 Opp Drive End Bearing Size: 6311
UL: Listed CSA: Y
CE: Y IP Code: 23

Technical Specifications

Electrical Type: Squirrel Cage Induction Run Starting Method: Part Wdg Start Low Volt Only & Wye Start Delta Run
Poles: 4 Rotation: Reversible
Resistance Main: .205 Ohms Mounting: Rigid Base
Motor Orientation: Horizontal Drive End Bearing: Ball
Opp Drive End Bearing: Ball Frame Material: Cast Iron
Shaft Type: T Overall Length: 29.73 in
Frame Length: 15.74 in Shaft Diameter: 2.125 in
Shaft Extension: 5.25 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 185.00 325.00 220.0 1,675 68.0 50.00
Locked-Rotor 330.00 250.00 168.0 0 39.0 50.00
No Load 19.50 0.00 0.0 1,800 5.0 50.00
Pull-Up 300.00 240.00 162.0 900 50.00
1/3 320.00 240.00 162.0 600 50.00
2/3 275.00 447.0 260.00 176.0 1,200 50.00
Full Load 60.00 100.0 148.00 100.0 1,775 85.0 50.00

Load Characteristics

% of Rated Load 0 % 25 % 50 % 75 % 100 % 115 % 125 %
Current (Amps) 22.43 27.60 38.53 51.75 69.00 79.35 86.25
Rated Output (KW) 1.00 10.20 20.00 30.00 40.00 46.50 51.00
Efficiency (%) 0.0 90.2 93.0 93.6 93.6 93.6 93.0
Power Factor (%) 5.0 55.0 75.0 81.0 83.0 84.0 85.0
Speed (RPM) 1,800 1,795 1,788 1,780 1,775 1,768 1,765
Temp. Rise @ FL 0.0 0.0 0.0 0.0 45.0 60.0 70.0
Torque (ft-lbs) 0.00 36.50 73.50 111.00 148.00 171.00 186.00

Marathon Motors
Regal Beloit