Description
445TSTDCD4007 – Marathon 250 HP Fire Pump Motor, 3 phase, 3600 RPM, 460 V, 445TS Frame, ODP – U539A
445TSTDCD4007 Marathon Fire Pump Motors
General Specifications
| UPC: |
722856068132 |
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: |
272.0 A |
Speed: |
3575 rpm |
| Service Factor: |
1.15 |
Phase: |
3 |
| Efficiency: |
94.5 % |
Power Factor: |
89 |
| 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: |
6314 |
Opp Drive End Bearing Size: |
6314 |
| 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: |
2 |
Rotation: |
Reversible |
| Resistance Main: |
.032 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: |
40.83 in |
| Frame Length: |
25.98 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) |
| Full Load |
272.00 |
100.0 |
367.00 |
100.0 |
3,575 |
|
89.0 |
250.00 |
| 1/3 |
1,600.00 |
|
475.00 |
|
1,200 |
|
|
250.00 |
| Pull-Up |
1,500.00 |
|
475.00 |
|
1,800 |
|
|
250.00 |
| 2/3 |
1,350.00 |
|
550.00 |
|
2,400 |
|
|
250.00 |
| Locked-Rotor |
1,675.00 |
|
575.00 |
155.0 |
0 |
|
33.0 |
250.00 |
| Break-Down |
1,000.00 |
|
850.00 |
230.0 |
3,450 |
|
68.0 |
250.00 |
| No Load |
65.00 |
|
0.00 |
0.0 |
3,600 |
|
7.0 |
250.00 |
Load Characteristics
| % of Rated Load |
0 % |
25 % |
50 % |
75 % |
100 % |
115 % |
125 % |
| Current (Amps) |
65.00 |
92.00 |
145.00 |
206.00 |
272.00 |
315.00 |
345.00 |
| Rated Output (KW) |
5.00 |
50.50 |
98.50 |
147.00 |
197.00 |
228.00 |
249.00 |
| Efficiency (%) |
0.0 |
91.7 |
94.1 |
94.5 |
94.5 |
94.1 |
93.6 |
| Power Factor (%) |
6.0 |
69.0 |
84.0 |
88.0 |
89.0 |
89.0 |
89.0 |
| Speed (RPM) |
3,600 |
3,595 |
3,588 |
3,582 |
3,575 |
3,572 |
3,568 |
| Temp. Rise @ FL |
0.0 |
0.0 |
0.0 |
0.0 |
50.0 |
70.0 |
85.0 |
| Torque (ft-lbs) |
0.00 |
91.50 |
183.00 |
275.00 |
367.00 |
423.00 |
460.00 |
Marathon Motors
Regal Beloit
