Description
256TTFNA16106 – Marathon 20 HP Vertical Solid Shaft P-Base Motor, 3 phase, 3600 RPM, 230/460 V, 256HPV Frame, TEFC – M892B
256TTFNA16106 Marathon Vertical Solid Shaft P-Base Motors
General Specifications
| UPC: |
722856052872 |
Weight: |
413 LB |
| Packaged Length: |
31.25 IN |
Packaged Width: |
22.25 IN |
| Packaged Height: |
18 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: |
3540 rpm |
| Service Factor: |
1.15 |
Phase: |
3 |
| Efficiency: |
91 % |
Power Factor: |
87 |
| Duty: |
Continuous |
Insulation Class: |
F |
| Design Code: |
B |
KVA Code: |
G |
| Frame: |
256HPV |
Enclosure: |
Totally Enclosed Fan Cooled |
| Thermal Protection: |
No |
Ambient Temperature: |
40 °C |
| Drive End Bearing Size: |
6309 |
Opp Drive End Bearing Size: |
6210 |
| UL: |
Recognized |
CSA: |
Y |
| CE: |
Y |
IP Code: |
43 |
Technical Specifications
| Electrical Type: |
Squirrel Cage Induction Run |
Starting Method: |
Across The Line |
| Poles: |
2 |
Rotation: |
Reversible |
| Resistance Main: |
.485 Ohms |
Mounting: |
Round |
| Motor Orientation: |
Shaft Down |
Drive End Bearing: |
Ball |
| Opp Drive End Bearing: |
Ball |
Frame Material: |
Cast Iron |
| Shaft Type: |
HP |
Overall Length: |
28.26 in |
| Frame Length: |
12.25 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) |
| 1/3 |
138.00 |
580.0 |
47.00 |
156.0 |
1,200 |
|
|
20.00 |
| Break-Down |
100.00 |
420.0 |
78.00 |
265.0 |
3,200 |
|
71.0 |
20.00 |
| No Load |
7.80 |
30.0 |
0.00 |
0.0 |
3,600 |
|
8.5 |
20.00 |
| 2/3 |
123.00 |
520.0 |
58.00 |
190.0 |
2,400 |
|
|
20.00 |
| Locked-Rotor |
145.00 |
610.0 |
50.00 |
168.0 |
0 |
|
35.0 |
20.00 |
| Pull-Up |
130.00 |
550.0 |
50.00 |
166.0 |
1,800 |
|
|
20.00 |
| Full Load |
24.00 |
100.0 |
29.80 |
100.0 |
3,540 |
|
87.0 |
20.00 |
Load Characteristics
| % of Rated Load |
0 % |
25 % |
50 % |
75 % |
100 % |
115 % |
125 % |
| Current (Amps) |
7.50 |
9.20 |
13.50 |
18.50 |
24.00 |
27.50 |
30.00 |
| Rated Output (KW) |
0.75 |
4.20 |
8.20 |
12.20 |
16.50 |
19.40 |
21.00 |
| Efficiency (%) |
0.0 |
85.5 |
90.2 |
91.0 |
91.0 |
91.0 |
90.2 |
| Power Factor (%) |
8.5 |
59.0 |
77.0 |
84.0 |
87.0 |
88.0 |
88.0 |
| Speed (RPM) |
3,600 |
3,580 |
3,560 |
3,540 |
3,520 |
3,510 |
3,490 |
| Temp. Rise @ FL |
0.0 |
0.0 |
0.0 |
0.0 |
75.0 |
105.0 |
0.0 |
| Torque (ft-lbs) |
0.00 |
7.50 |
14.80 |
22.20 |
29.80 |
34.50 |
37.50 |
Marathon Motors
Regal Beloit
