Description
256TTDN16067 – Marathon 20 HP Vertical Solid Shaft P-Base Motor, 3 phase, 1800 RPM, 230/460 V, 256HPV Frame, ODP – M718A
256TTDN16067 Marathon Vertical Solid Shaft P-Base Motors
General Specifications
| UPC: |
722856067258 |
Weight: |
284 LB |
| Packaged Length: |
27 IN |
Packaged Width: |
27 IN |
| Packaged Height: |
21 IN |
Nameplate Specifications
| Output HP: |
20 Hp |
Output KW: |
14.9 kW |
| Frequency: |
60 Hz |
Voltage: |
230/460 V |
| Current: |
48.0/24.0 A |
Speed: |
1775 rpm |
| Service Factor: |
1.15 |
Phase: |
3 |
| Efficiency: |
93 % |
Power Factor: |
82.5 |
| Duty: |
Continuous |
Insulation Class: |
F |
| Design Code: |
B |
KVA Code: |
F |
| 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: |
4 |
Rotation: |
Reversible |
| Resistance Main: |
.12 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: |
1.125 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) |
| Locked-Rotor |
145.00 |
615.0 |
115.00 |
195.0 |
0 |
|
40.0 |
20.00 |
| Full Load |
24.00 |
100.0 |
59.00 |
100.0 |
1,770 |
|
82.5 |
20.00 |
| No Load |
10.00 |
40.0 |
0.00 |
0.0 |
1,800 |
|
5.5 |
20.00 |
| 1/3 |
145.00 |
604.0 |
95.00 |
161.0 |
600 |
|
|
20.00 |
| 2/3 |
130.00 |
542.0 |
120.00 |
203.0 |
1,300 |
|
|
20.00 |
| Pull-Up |
135.00 |
563.0 |
100.00 |
169.0 |
900 |
|
|
20.00 |
| Break-Down |
100.00 |
417.0 |
150.00 |
254.0 |
1,675 |
|
65.0 |
20.00 |
Load Characteristics
| % of Rated Load |
0 % |
25 % |
50 % |
75 % |
100 % |
115 % |
125 % |
| Current (Amps) |
9.50 |
11.00 |
14.50 |
19.00 |
24.00 |
27.50 |
30.00 |
| Rated Output (KW) |
0.50 |
4.00 |
8.00 |
12.00 |
16.00 |
19.00 |
20.50 |
| Efficiency (%) |
0.0 |
88.5 |
92.4 |
93.0 |
93.0 |
92.4 |
91.7 |
| Power Factor (%) |
5.5 |
47.0 |
69.0 |
78.5 |
82.5 |
84.0 |
84.5 |
| Speed (RPM) |
1,800 |
1,795 |
1,788 |
1,780 |
1,775 |
1,765 |
1,760 |
| Temp. Rise @ FL |
0.0 |
0.0 |
0.0 |
0.0 |
25.0 |
30.0 |
37.0 |
| Torque (ft-lbs) |
0.00 |
14.50 |
29.50 |
44.00 |
59.00 |
68.50 |
74.50 |
Marathon Motors
Regal Beloit
