Description
444TTFN16102 – Marathon 75 HP General Purpose Motor, 3 phase, 900 RPM, 460 V, 444T Frame, TEFC – L428A
444TTFN16102 Marathon Three Phase TEFC Motors
Please advise CFM, static pressure, voltage, phase, and/or horsepower on specifications, drawings, or existing equipment for an accurate quote.
General Specifications
| UPC: |
722856006073 |
Weight: |
0 LB |
| Packaged Length: |
44.88 IN |
Packaged Width: |
39.25 IN |
| Packaged Height: |
33.17 IN |
Nameplate Specifications
| Output HP: |
75 Hp |
Output KW: |
56.0 kW |
| Frequency: |
60/50 Hz |
Voltage: |
460 V |
| Current: |
102.0 A |
Speed: |
890 rpm |
| Service Factor: |
1.15 |
Phase: |
3 |
| Efficiency: |
93.6 % |
Power Factor: |
74 |
| Duty: |
Continuous |
Insulation Class: |
F |
| Design Code: |
B |
KVA Code: |
F |
| Frame: |
444T |
Enclosure: |
Totally Enclosed Fan Cooled |
| Thermal Protection: |
No |
Ambient Temperature: |
40 °C |
| Drive End Bearing Size: |
6318 |
Opp Drive End Bearing Size: |
6316 |
| UL: |
Recognized |
CSA: |
Y |
| CE: |
Y |
IP Code: |
43 |
Technical Specifications
| Electrical Type: |
Squirrel Cage Induction Run |
Starting Method: |
Across The Line |
| Poles: |
8 |
Rotation: |
Reversible |
| Resistance Main: |
.088 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: |
41.34 in |
| Frame Length: |
18.25 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) |
| 2/3 |
400.00 |
392.0 |
685.00 |
155.0 |
600 |
|
|
75.00 |
| 1/3 |
475.00 |
466.0 |
540.00 |
122.0 |
300 |
|
|
75.00 |
| Pull-Up |
450.00 |
441.0 |
545.00 |
123.0 |
450 |
|
|
75.00 |
| Break-Down |
270.00 |
265.0 |
920.00 |
208.0 |
850 |
|
62.0 |
75.00 |
| Locked-Rotor |
500.00 |
490.0 |
660.00 |
149.0 |
0 |
|
31.0 |
75.00 |
| No Load |
51.00 |
50.0 |
0.00 |
0.0 |
900 |
|
3.5 |
75.00 |
| Full Load |
102.00 |
100.0 |
443.00 |
100.0 |
890 |
|
74.0 |
75.00 |
Load Characteristics
| % of Rated Load |
0 % |
25 % |
50 % |
75 % |
100 % |
115 % |
125 % |
| Current (Amps) |
51.00 |
56.00 |
67.00 |
83.00 |
102.00 |
115.00 |
124.00 |
| Rated Output (KW) |
1.50 |
15.50 |
30.00 |
45.00 |
60.00 |
69.00 |
75.50 |
| Efficiency (%) |
0.0 |
89.5 |
93.0 |
93.6 |
93.6 |
93.6 |
93.0 |
| Power Factor (%) |
3.5 |
35.5 |
56.5 |
68.0 |
74.0 |
75.5 |
76.5 |
| Speed (RPM) |
900 |
898 |
895 |
892 |
890 |
888 |
885 |
| Temp. Rise @ FL |
0.0 |
0.0 |
0.0 |
0.0 |
75.0 |
105.0 |
0.0 |
| Torque (ft-lbs) |
0.00 |
110.00 |
220.00 |
331.00 |
443.00 |
511.00 |
556.00 |
Marathon Motors
Regal Beloit
