Description
449TTFS14055 – Marathon 250 HP Fire Pump Motor, 3 phase, 1800 RPM, 460 V, 449T Frame, TEFC – Y1642
449TTFS14055 Marathon Fire Pump Motors
General Specifications
| UPC: |
722856132796 |
Weight: |
0 LB |
| Packaged Length: |
56 IN |
Packaged Width: |
46 IN |
| Packaged Height: |
32.05 IN |
Nameplate Specifications
| Output HP: |
250 Hp |
Output KW: |
187.0 kW |
| Frequency: |
60/50 Hz |
Voltage: |
460 V |
| Current: |
290.0 A |
Speed: |
1785 rpm |
| Service Factor: |
1.15 |
Phase: |
3 |
| Efficiency: |
95 % |
Power Factor: |
85 |
| Duty: |
Continuous |
Insulation Class: |
F |
| Design Code: |
B |
KVA Code: |
F |
| Frame: |
447/449T |
Enclosure: |
Totally Enclosed Fan Cooled |
| Thermal Protection: |
No |
Ambient Temperature: |
40 °C |
| Drive End Bearing Size: |
6319 |
Opp Drive End Bearing Size: |
6318 |
| UL: |
No |
CSA: |
Y |
| CE: |
Y |
IP Code: |
43 |
Technical Specifications
| Electrical Type: |
Squirrel Cage Induction Run |
Starting Method: |
Part Wdg Start & Wye Start Delta Run |
| Poles: |
4 |
Rotation: |
Reversible |
| Resistance Main: |
.0134 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: |
51.86 in |
| Frame Length: |
28.75 in |
Shaft Diameter: |
3.375 in |
| Shaft Extension: |
8.75 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) |
| Full Load |
290.00 |
100.0 |
736.00 |
100.0 |
1,785 |
|
|
250.00 |
| No Load |
85.00 |
29.0 |
0.00 |
0.0 |
1,800 |
|
|
250.00 |
| 1/3 |
1,600.00 |
552.0 |
1,100.00 |
149.0 |
600 |
|
|
250.00 |
| Locked-Rotor |
1,650.00 |
569.0 |
1,250.00 |
170.0 |
0 |
|
30.0 |
250.00 |
| 2/3 |
1,500.00 |
517.0 |
1,300.00 |
177.0 |
1,200 |
|
|
250.00 |
| Pull-Up |
1,550.00 |
534.0 |
1,200.00 |
163.0 |
900 |
|
|
250.00 |
| Break-Down |
900.00 |
310.0 |
1,650.00 |
224.0 |
1,750 |
|
65.0 |
250.00 |
Load Characteristics
| % of Rated Load |
0 % |
25 % |
50 % |
75 % |
100 % |
115 % |
125 % |
| Current (Amps) |
85.00 |
110.00 |
160.00 |
222.00 |
290.00 |
327.00 |
365.00 |
| Rated Output (KW) |
6.00 |
52.00 |
99.50 |
148.00 |
196.00 |
221.00 |
246.00 |
| Efficiency (%) |
0.0 |
89.5 |
93.6 |
94.5 |
95.0 |
95.0 |
94.5 |
| Power Factor (%) |
9.0 |
59.0 |
78.0 |
83.5 |
85.0 |
85.0 |
84.5 |
| Speed (RPM) |
1,800 |
1,795 |
1,792 |
1,788 |
1,785 |
1,780 |
1,775 |
| Temp. Rise @ FL |
0.0 |
50.0 |
45.0 |
0.0 |
80.0 |
110.0 |
0.0 |
| Torque (ft-lbs) |
0.00 |
183.00 |
366.00 |
551.00 |
736.00 |
829.00 |
922.00 |
Marathon Motors
Regal Beloit
