Description
256TTDR16008 – Marathon 25 HP Close-Coupled Pump Motor, 3 phase, 3600 RPM, 230/460 V, 256JM Frame, ODP – U103A
256TTDR16008 Marathon JM Motors
General Specifications
| UPC: |
722856054432 |
Weight: |
294 LB |
| Packaged Length: |
30.19 IN |
Packaged Width: |
16.5 IN |
| Packaged Height: |
14 IN |
Nameplate Specifications
| Output HP: |
25 Hp |
Output KW: |
18.7 kW |
| Frequency: |
60/50 Hz |
Voltage: |
230/460 V |
| Current: |
57.0/28.5 A |
Speed: |
3525 rpm |
| Service Factor: |
1.15 |
Phase: |
3 |
| Efficiency: |
92 % |
Power Factor: |
89.5 |
| Duty: |
Continous |
Insulation Class: |
B |
| Design Code: |
B |
KVA Code: |
G |
| Frame: |
256JM |
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: |
2 |
Rotation: |
Reversible |
| Resistance Main: |
.48 Ohms |
Mounting: |
Rigid base |
| Motor Orientation: |
Horizontal |
Drive End Bearing: |
Ball |
| Opp Drive End Bearing: |
Ball |
Frame Material: |
Rolled Steel |
| Shaft Type: |
JM |
Overall Length: |
23.6 in |
| Shaft Diameter: |
1.625 in |
Shaft Extension: |
5.28 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 |
167.00 |
586.0 |
51.70 |
139.0 |
0 |
0.00 |
0.0 |
25.00 |
| Full Load |
28.50 |
100.0 |
37.20 |
100.0 |
3,525 |
20.30 |
89.5 |
25.00 |
| No Load |
9.00 |
32.0 |
0.00 |
0.0 |
3,600 |
0.50 |
0.0 |
25.00 |
| Break-Down |
0.00 |
0.0 |
94.50 |
254.0 |
0 |
0.00 |
0.0 |
25.00 |
Load Characteristics
| % of Rated Load |
0 % |
25 % |
50 % |
75 % |
100 % |
115 % |
| Current (Amps) |
9.00 |
11.00 |
16.00 |
22.00 |
28.50 |
32.50 |
| Rated Output (KW) |
0.50 |
5.35 |
10.00 |
15.30 |
20.30 |
23.50 |
| Efficiency (%) |
0.0 |
87.5 |
93.0 |
92.0 |
91.7 |
91.5 |
| Power Factor (%) |
0.0 |
60.0 |
78.5 |
87.5 |
89.5 |
90.0 |
| Speed (RPM) |
3,600 |
3,580 |
3,565 |
3,545 |
3,525 |
3,510 |
| Temp. Rise @ FL |
0.0 |
0.0 |
0.0 |
0.0 |
40.0 |
55.0 |
| Torque (ft-lbs) |
0.00 |
9.20 |
18.40 |
27.80 |
37.20 |
43.00 |
Marathon Motors
Regal Beloit
