Description
256TTFCD6008 – Marathon 20 HP Close-Coupled Pump Motor, 3 phase, 3600 RPM, 575 V, 256JM Frame, TEFC – GT3224A
256TTFCD6008 Marathon JM Motors
General Specifications
| UPC: |
722856061584 |
Weight: |
312 LB |
| Packaged Length: |
31.77 IN |
Packaged Width: |
28.03 IN |
| Packaged Height: |
28.14 IN |
Nameplate Specifications
| Output HP: |
20 Hp |
Output KW: |
14.9 kW |
| Frequency: |
60 Hz |
Voltage: |
575 V |
| Current: |
19.0 A |
Speed: |
3540 rpm |
| Service Factor: |
1.15 |
Phase: |
3 |
| Efficiency: |
91 % |
Power Factor: |
87.5 |
| Duty: |
Continuous |
Insulation Class: |
F |
| Design Code: |
B |
KVA Code: |
G |
| Frame: |
256JM |
Enclosure: |
Totally Enclosed Fan Cooled |
| Thermal Protection: |
No |
Ambient Temperature: |
40 °C |
| Drive End Bearing Size: |
6309 |
Opp Drive End Bearing Size: |
6209 |
| UL: |
Listed |
CSA: |
Y |
| CE: |
Y |
IP Code: |
55 |
| Hazardous Location: |
DIVISION 2 T2B |
Technical Specifications
| Electrical Type: |
Squirrel Cage Inverter Rated |
Starting Method: |
Line Or Inverter |
| Poles: |
2 |
Rotation: |
Selective Clockwise |
| Resistance Main: |
.546 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: |
27.89 in |
| Frame Length: |
11.73 in |
Shaft Diameter: |
1.375 in |
| Shaft Extension: |
5.75 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 |
83.00 |
350.0 |
74.00 |
249.0 |
3,258 |
|
73.0 |
20.00 |
| Pull-Up |
128.00 |
540.0 |
41.00 |
138.0 |
1,800 |
|
|
20.00 |
| Full Load |
23.70 |
100.0 |
29.70 |
100.0 |
3,540 |
|
87.5 |
20.00 |
| No Load |
8.10 |
34.0 |
0.00 |
0.0 |
3,600 |
|
9.0 |
20.00 |
| Locked-Rotor |
143.00 |
603.0 |
49.00 |
165.0 |
0 |
|
38.0 |
20.00 |
| 2/3 |
118.00 |
498.0 |
50.00 |
168.0 |
2,400 |
|
|
20.00 |
| 1/3 |
134.00 |
565.0 |
40.00 |
135.0 |
1,200 |
|
|
20.00 |
Load Characteristics
| % of Rated Load |
0 % |
25 % |
50 % |
75 % |
100 % |
115 % |
125 % |
| Current (Amps) |
6.48 |
8.00 |
10.88 |
14.64 |
18.96 |
21.68 |
23.60 |
| Rated Output (KW) |
0.90 |
4.40 |
8.30 |
12.30 |
16.50 |
19.00 |
20.80 |
| Efficiency (%) |
0.0 |
84.5 |
89.5 |
91.0 |
91.0 |
90.6 |
89.9 |
| Power Factor (%) |
9.0 |
56.0 |
76.5 |
84.0 |
87.5 |
88.5 |
88.5 |
| Speed (RPM) |
3,600 |
3,585 |
3,570 |
3,555 |
3,540 |
3,530 |
3,522 |
| Temp. Rise @ FL |
0.0 |
0.0 |
0.0 |
0.0 |
60.0 |
80.0 |
95.0 |
| Torque (ft-lbs) |
0.00 |
7.30 |
14.70 |
22.00 |
29.70 |
34.00 |
37.00 |
Marathon Motors
Regal Beloit
