Description
256TTDX16078 – Marathon 10 HP General Purpose Motor, 3 phase, 1200 RPM, 230/460 V, 256T Frame, ODP – E734A
256TTDX16078 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: |
722856012692 |
Weight: |
308 LB |
| Packaged Length: |
26.88 IN |
Packaged Width: |
18.38 IN |
| Packaged Height: |
15 IN |
Nameplate Specifications
| Output HP: |
10 Hp |
Output KW: |
7.5 kW |
| Frequency: |
60/50 Hz |
Voltage: |
230/460 V |
| Current: |
27.4/13.7 A |
Speed: |
1175 rpm |
| Service Factor: |
1.15 |
Phase: |
3 |
| Efficiency: |
91.7 % |
Power Factor: |
75.5 |
| Duty: |
Continous |
Insulation Class: |
F |
| Design Code: |
B |
KVA Code: |
G |
| Frame: |
256T |
Enclosure: |
Drip Proof |
| Thermal Protection: |
No |
Ambient Temperature: |
40 °C |
| Drive End Bearing Size: |
6309 |
Opp Drive End Bearing Size: |
6207 |
| UL: |
Recognized |
CSA: |
Y |
| CE: |
Y |
IP Code: |
12 |
Technical Specifications
| Electrical Type: |
Squirrel Cage Induction Run |
Starting Method: |
Across The Line |
| Poles: |
6 |
Rotation: |
Reversible |
| Resistance Main: |
.634 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: |
23.9 in |
| Shaft Diameter: |
1.625 in |
Shaft Extension: |
4 in |
| Assembly/Box Mounting: |
F1 Only |
Speed Characteristics
| Curvepoint |
Current (Amps) |
Current (%) |
Torque (ft-lbs) |
(%) |
Speed (RPM) |
Rated Output (KW) |
Power Factor (%) |
Rated Output (Hp) |
| Full Load |
13.70 |
100.0 |
44.60 |
100.0 |
1,175 |
0.00 |
75.5 |
10.00 |
| Break-Down |
55.00 |
401.0 |
115.10 |
258.0 |
900 |
0.00 |
0.0 |
10.00 |
| Locked-Rotor |
78.00 |
569.0 |
70.50 |
158.0 |
0 |
0.00 |
0.0 |
10.00 |
| Pull-Up |
76.00 |
555.0 |
61.00 |
137.0 |
200 |
0.00 |
0.0 |
10.00 |
| No Load |
6.20 |
45.0 |
0.00 |
0.0 |
1,200 |
0.00 |
0.0 |
10.00 |
Load Characteristics
| % of Rated Load |
0 % |
25 % |
50 % |
75 % |
100 % |
115 % |
| Current (Amps) |
6.20 |
7.10 |
8.90 |
11.20 |
13.70 |
15.60 |
| Rated Output (KW) |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
| Efficiency (%) |
0.0 |
85.4 |
91.2 |
91.2 |
91.7 |
91.2 |
| Power Factor (%) |
30.1 |
38.6 |
57.8 |
68.8 |
75.5 |
75.7 |
| Speed (RPM) |
1,198 |
1,195 |
1,190 |
1,184 |
1,175 |
1,174 |
| Temp. Rise @ FL |
0.0 |
0.0 |
0.0 |
0.0 |
30.0 |
35.0 |
| Torque (ft-lbs) |
0.00 |
22.50 |
33.50 |
39.00 |
44.50 |
51.00 |
Marathon Motors
Regal Beloit
