Description
256TTDCA6033 – Marathon 20 HP Close-Coupled Pump Motor, 3 phase, 1800 RPM, 575 V, 256JM Frame, ODP – GT0525
256TTDCA6033 Marathon JM Motors
General Specifications
| UPC: |
722856000934 |
Weight: |
365 LB |
| Packaged Length: |
27 IN |
Packaged Width: |
20.5 IN |
| Packaged Height: |
18 IN |
Nameplate Specifications
| Output HP: |
20 Hp |
Output KW: |
14.9 kW |
| Frequency: |
60 Hz |
Voltage: |
575 V |
| Current: |
19.5 A |
Speed: |
1768 rpm |
| Service Factor: |
1.15 |
Phase: |
3 |
| Efficiency: |
93 % |
Power Factor: |
83 |
| Duty: |
Continuous |
Insulation Class: |
F |
| Design Code: |
B |
KVA Code: |
F |
| Frame: |
256JM |
Enclosure: |
Drip Proof |
| Thermal Protection: |
No |
Ambient Temperature: |
40 °C |
| Drive End Bearing Size: |
6309 |
Opp Drive End Bearing Size: |
6208 |
| UL: |
Recognized |
CSA: |
Y |
| CE: |
Y |
IP Code: |
22 |
Technical Specifications
| Electrical Type: |
Squirrel Cage Inverter Rated |
Starting Method: |
Line Or Inverter |
| Poles: |
4 |
Rotation: |
Reversible |
| Resistance Main: |
.455 Ohms |
Mounting: |
Rigid Base |
| Motor Orientation: |
Horizontal |
Drive End Bearing: |
Ball |
| Opp Drive End Bearing: |
Ball |
Frame Material: |
Cast Iron |
| Shaft Type: |
JM |
Overall Length: |
25.99 in |
| Shaft Diameter: |
1.25 in |
Shaft Extension: |
5.25 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 |
140.00 |
575.0 |
125.00 |
210.0 |
0 |
|
42.0 |
20.00 |
| 2/3 |
115.00 |
441.0 |
115.00 |
192.0 |
1,300 |
|
|
20.00 |
| Break-Down |
88.00 |
340.0 |
170.00 |
285.0 |
1,625 |
|
72.0 |
20.00 |
| Full Load |
24.00 |
100.0 |
59.50 |
100.0 |
1,770 |
|
83.0 |
20.00 |
| No Load |
9.50 |
39.0 |
0.00 |
0.0 |
1,800 |
|
5.0 |
20.00 |
| 1/3 |
130.00 |
525.0 |
100.00 |
168.0 |
600 |
|
|
20.00 |
| Pull-Up |
125.00 |
500.0 |
100.00 |
168.0 |
900 |
|
|
20.00 |
Load Characteristics
| % of Rated Load |
0 % |
25 % |
50 % |
75 % |
100 % |
115 % |
125 % |
| Current (Amps) |
7.60 |
8.80 |
11.60 |
15.20 |
19.20 |
22.40 |
24.00 |
| Rated Output (KW) |
0.75 |
4.20 |
8.00 |
12.00 |
16.00 |
18.50 |
20.50 |
| Efficiency (%) |
0.0 |
89.5 |
92.4 |
93.0 |
93.0 |
92.4 |
91.7 |
| Power Factor (%) |
5.0 |
48.0 |
70.0 |
79.0 |
84.0 |
84.5 |
84.5 |
| Speed (RPM) |
1,800 |
1,792 |
1,785 |
1,778 |
1,770 |
1,765 |
1,760 |
| Temp. Rise @ FL |
0.0 |
0.0 |
0.0 |
0.0 |
45.0 |
60.0 |
75.0 |
| Torque (ft-lbs) |
0.00 |
14.50 |
29.50 |
44.00 |
59.20 |
68.50 |
74.50 |
Marathon Motors
Regal Beloit
