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
