Description
256TTDC6029 – Marathon 20 HP General Purpose Motor, 3 phase, 1800 RPM, 575 V, 256T Frame, ODP – U290
256TTDC6029 Marathon Three Phase ODP Motors
Please advise CFM, static pressure, voltage, phase, and/or horsepower on specifications, drawings, or existing equipment for an accurate quote.
General Specifications
| UPC: |
722856012937 |
Weight: |
350 LB |
| Packaged Length: |
25.6 IN |
Packaged Width: |
19.14 IN |
| Packaged Height: |
17.87 IN |
Nameplate Specifications
| Output HP: |
20 Hp |
Output KW: |
14.9 kW |
| Frequency: |
60 Hz |
Voltage: |
575 V |
| Current: |
19.2 A |
Speed: |
1775 rpm |
| Service Factor: |
1.15 |
Phase: |
3 |
| Efficiency: |
93 % |
Power Factor: |
83 |
| Duty: |
Continuous |
Insulation Class: |
F |
| Design Code: |
B |
KVA Code: |
F |
| Frame: |
256T |
Enclosure: |
Drip Proof |
| Thermal Protection: |
No |
Ambient Temperature: |
40 °C |
| Drive End Bearing Size: |
6309 |
Opp Drive End Bearing Size: |
6208 |
| UL: |
Recognized |
CSA: |
Y |
| CE: |
Y |
IP Code: |
22 |
Technical Specifications
| Electrical Type: |
Squirrel Cage Inverter Rated |
Starting Method: |
Line Or Inverter |
| Poles: |
4 |
Rotation: |
Reversible |
| Resistance Main: |
.41 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: |
22.60 in |
| Shaft Diameter: |
1.625 in |
Shaft Extension: |
4.25 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) |
| Pull-Up |
160.00 |
|
88.00 |
|
900 |
|
|
20.00 |
| 1/3 |
170.00 |
|
90.00 |
|
600 |
|
|
20.00 |
| Break-Down |
100.00 |
|
190.00 |
320.0 |
1,675 |
|
70.0 |
20.00 |
| Full Load |
24.50 |
100.0 |
59.20 |
100.0 |
1,780 |
|
83.0 |
20.00 |
| 2/3 |
145.00 |
|
65.00 |
|
1,200 |
|
|
20.00 |
| Locked-Rotor |
140.00 |
|
108.00 |
182.0 |
0 |
|
36.0 |
20.00 |
| No Load |
8.50 |
|
0.00 |
0.0 |
1,800 |
|
5.0 |
20.00 |
Load Characteristics
| % of Rated Load |
0 % |
25 % |
50 % |
75 % |
100 % |
115 % |
125 % |
| Current (Amps) |
6.80 |
8.40 |
11.60 |
15.36 |
20.40 |
23.44 |
25.20 |
| Rated Output (KW) |
0.50 |
4.20 |
8.00 |
12.00 |
16.00 |
18.50 |
20.00 |
| Efficiency (%) |
0.0 |
90.2 |
93.0 |
93.0 |
93.0 |
93.0 |
92.4 |
| Power Factor (%) |
5.0 |
49.0 |
70.0 |
79.0 |
83.0 |
83.5 |
84.0 |
| Speed (RPM) |
1,800 |
1,795 |
1,790 |
1,785 |
1,775 |
1,770 |
1,765 |
| Temp. Rise @ FL |
0.0 |
0.0 |
0.0 |
0.0 |
45.0 |
60.0 |
75.0 |
| Torque (ft-lbs) |
0.00 |
14.70 |
29.40 |
44.20 |
59.20 |
68.10 |
74.20 |
Marathon Motors
Regal Beloit
