Description
256TTDX7253 – Marathon 10,2.50 HP 2 speed Definite Purpose AC Motor, 3 phase, 1800/900 RPM, 460 V, 256T Frame, ODP – Y471
256TTDX7253 Marathon Other Purpose Motors
Please advise CFM, static pressure, voltage, phase, and/or horsepower on specifications, drawings, or existing equipment for an accurate quote.
General Specifications
| UPC: |
722856042583 |
Weight: |
145 LB |
| Packaged Length: |
30.19 IN |
Packaged Width: |
16.5 IN |
| Packaged Height: |
14 IN |
Nameplate Specifications
| Output HP: |
10,2.50 Hp |
Output KW: |
7.5 kW |
| Frequency: |
60/60 Hz |
Voltage: |
460 V |
| Current: |
12.9,5.6 A |
Speed: |
1760,880 rpm |
| Service Factor: |
1.15 |
Phase: |
3 |
| Efficiency: |
86.5 % |
Power Factor: |
84.1 |
| Duty: |
Continuous |
Insulation Class: |
B |
| Design Code: |
2VT |
KVA Code: |
J |
| 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: |
12 |
Technical Specifications
| Electrical Type: |
Squirrel Cage Induction Run |
Starting Method: |
Across The Line |
| Poles: |
4//8 |
Rotation: |
Reversible |
| Resistance Main: |
1.385 Ohms |
Mounting: |
Rigid Base |
| Motor Orientation: |
Horizontal |
Drive End Bearing: |
Ball |
| Opp Drive End Bearing: |
Ball |
Frame Material: |
Rolled Steel |
| Shaft Type: |
T |
Overall Length: |
22.32 in |
| Frame Length: |
15.45 in |
Shaft Diameter: |
1.625 in |
| Shaft Extension: |
4.19 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) |
| Locked-Rotor |
94.00 |
729.0 |
66.00 |
220.0 |
0 |
|
52.0 |
10.00 |
| Break-Down |
56.00 |
434.0 |
94.00 |
313.0 |
1,555 |
|
78.0 |
10.00 |
Load Characteristics
| % of Rated Load |
0 % |
25 % |
50 % |
75 % |
100 % |
115 % |
125 % |
| Current (Amps) |
5.80 |
6.50 |
8.00 |
10.50 |
12.90 |
14.50 |
16.00 |
| Rated Output (KW) |
0.50 |
2.50 |
4.50 |
6.50 |
8.50 |
10.00 |
11.00 |
| Efficiency (%) |
0.0 |
76.5 |
84.0 |
86.5 |
86.5 |
85.5 |
85.0 |
| Power Factor (%) |
11.0 |
47.0 |
68.0 |
79.0 |
84.1 |
86.0 |
87.0 |
| Speed (RPM) |
1,800 |
1,790 |
1,780 |
1,770 |
1,760 |
1,750 |
1,745 |
| Temp. Rise @ FL |
0.0 |
0.0 |
0.0 |
0.0 |
70.0 |
90.0 |
0.0 |
| Torque (ft-lbs) |
0.00 |
7.50 |
15.00 |
22.50 |
30.00 |
34.50 |
37.50 |
Marathon Motors
Regal Beloit
