Description
256TTDR16026 – Marathon 20 HP Close-Coupled Pump Motor, 3 phase, 1800 RPM, 230/460 V, 256JM Frame, ODP – E197A
256TTDR16026 Marathon JM Motors
General Specifications
| UPC: |
722856051028 |
Weight: |
260 LB |
| Packaged Length: |
30.19 IN |
Packaged Width: |
16.5 IN |
| Packaged Height: |
14 IN |
Nameplate Specifications
| Output HP: |
20 Hp |
Output KW: |
14.9 kW |
| Frequency: |
60/50 Hz |
Voltage: |
230/460 V |
| Current: |
49.0/24.5 A |
Speed: |
1770 rpm |
| Service Factor: |
1.15 |
Phase: |
3 |
| Efficiency: |
93.6 % |
Power Factor: |
80.5 |
| 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: |
4 |
Rotation: |
Reversible |
| Resistance Main: |
0 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: |
21.89 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) |
| Pull-Up |
135.00 |
|
113.00 |
190.0 |
|
|
|
20.00 |
| Break-Down |
|
|
160.00 |
269.0 |
|
|
|
20.00 |
| Locked-Rotor |
140.00 |
|
115.00 |
193.0 |
0 |
|
|
20.00 |
Load Characteristics
| % of Rated Load |
0 % |
25 % |
50 % |
75 % |
100 % |
115 % |
125 % |
150 % |
| Current (Amps) |
9.00 |
11.00 |
14.70 |
19.30 |
24.50 |
28.00 |
30.00 |
0.00 |
| Rated Output (KW) |
0.50 |
4.17 |
8.02 |
11.75 |
15.85 |
18.20 |
19.75 |
0.00 |
| Efficiency (%) |
0.0 |
91.5 |
92.5 |
93.4 |
93.6 |
91.9 |
91.5 |
0.0 |
| Power Factor (%) |
6.1 |
44.2 |
67.3 |
77.6 |
80.5 |
81.6 |
82.6 |
0.0 |
| Speed (RPM) |
1,800 |
1,792 |
1,785 |
1,776 |
1,765 |
1,760 |
1,756 |
0 |
| Temp. Rise @ FL |
0.0 |
0.0 |
0.0 |
0.0 |
35.0 |
45.0 |
0.0 |
0.0 |
| Torque (ft-lbs) |
0.00 |
14.90 |
29.80 |
44.60 |
59.50 |
68.40 |
74.40 |
0.00 |
Marathon Motors
Regal Beloit
