Description
256TTDN16018 – Marathon 25 HP Vertical Solid Shaft P-Base Motor, 3 phase, 3600 RPM, 230/460 V, 256HPV Frame, ODP – M721A
256TTDN16018 Marathon Vertical Solid Shaft P-Base Motors
General Specifications
| UPC: |
722856052377 |
Weight: |
357 LB |
| Packaged Length: |
31 IN |
Packaged Width: |
27 IN |
| Packaged Height: |
27 IN |
Nameplate Specifications
| Output HP: |
25 Hp |
Output KW: |
18.7 kW |
| Frequency: |
60 Hz |
Voltage: |
230/460 V |
| Current: |
58.0/29.0 A |
Speed: |
3535 rpm |
| Service Factor: |
1.15 |
Phase: |
3 |
| Efficiency: |
92.4 % |
Power Factor: |
86 |
| Duty: |
Continuous |
Insulation Class: |
F |
| Design Code: |
B |
KVA Code: |
G |
| Frame: |
256HPV |
Enclosure: |
Drip Proof |
| Thermal Protection: |
No |
Ambient Temperature: |
40 °C |
| Drive End Bearing Size: |
6311 |
Opp Drive End Bearing Size: |
7308 |
| UL: |
Recognized |
CSA: |
Y |
| CE: |
Y |
IP Code: |
22 |
Technical Specifications
| Electrical Type: |
Squirrel Cage Induction Run |
Starting Method: |
Across The Line |
| Poles: |
2 |
Rotation: |
Reversible |
| Resistance Main: |
.355 Ohms |
Mounting: |
Round |
| Motor Orientation: |
Shaft Down |
Drive End Bearing: |
Ball |
| Opp Drive End Bearing: |
Duplex Tandem Angular Contact |
Frame Material: |
Cast Iron |
| Shaft Type: |
HP |
Overall Length: |
27.87 in |
| Frame Length: |
15.00 in |
Shaft Diameter: |
1.625 in |
| Shaft Extension: |
2.75 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) |
| Break-Down |
110.00 |
379.0 |
102.00 |
274.0 |
3,200 |
|
67.0 |
25.00 |
| 2/3 |
150.00 |
517.0 |
70.00 |
188.0 |
2,400 |
|
|
25.00 |
| Locked-Rotor |
175.00 |
603.0 |
66.00 |
177.0 |
0 |
|
34.0 |
25.00 |
| Full Load |
29.00 |
100.0 |
37.20 |
100.0 |
3,535 |
|
|
25.00 |
| Pull-Up |
160.00 |
552.0 |
61.00 |
164.0 |
1,800 |
|
|
25.00 |
| 1/3 |
170.00 |
586.0 |
60.00 |
161.0 |
1,200 |
|
|
25.00 |
| No Load |
9.00 |
31.0 |
0.00 |
0.0 |
3,600 |
|
|
25.00 |
Load Characteristics
| % of Rated Load |
0 % |
25 % |
50 % |
75 % |
100 % |
115 % |
125 % |
135 % |
| Current (Amps) |
9.00 |
12.50 |
17.00 |
23.00 |
29.50 |
34.00 |
37.00 |
39.00 |
| Rated Output (KW) |
0.75 |
5.50 |
10.00 |
15.00 |
20.00 |
23.50 |
25.50 |
228.00 |
| Efficiency (%) |
0.0 |
86.5 |
91.0 |
91.7 |
91.7 |
91.7 |
91.0 |
91.0 |
| Power Factor (%) |
8.0 |
55.0 |
76.0 |
84.0 |
86.0 |
87.0 |
87.5 |
89.0 |
| Speed (RPM) |
3,600 |
3,585 |
3,570 |
3,550 |
3,535 |
3,520 |
3,515 |
3,505 |
| Temp. Rise @ FL |
0.0 |
0.0 |
0.0 |
0.0 |
40.0 |
55.0 |
65.0 |
80.0 |
| Torque (ft-lbs) |
0.00 |
9.20 |
18.50 |
28.00 |
37.20 |
43.00 |
47.00 |
50.50 |
Marathon Motors
Regal Beloit
