Description
284TTFNA16522 – Marathon 25 HP General Purpose Pump Motor, 3 phase, 3600 RPM, 230/460 V, 284 Frame, TEFC – U2156A
284TTFNA16522 Marathon General Purpose Pump Three Phase Motors
General Specifications
| UPC: |
722856054548 |
Weight: |
518 LB |
| Packaged Length: |
35 IN |
Packaged Width: |
26 IN |
| Packaged Height: |
24.34 IN |
Nameplate Specifications
| Output HP: |
25 Hp |
Output KW: |
18.7 kW |
| Frequency: |
60/50 Hz |
Voltage: |
230/460 V |
| Current: |
57.5/28.8 A |
Speed: |
3558 rpm |
| Service Factor: |
1.15 |
Phase: |
3 |
| Efficiency: |
93 % |
Power Factor: |
87.5 |
| Duty: |
Continuous |
Insulation Class: |
F |
| Design Code: |
B |
KVA Code: |
G |
| Frame: |
284 |
Enclosure: |
Totally Enclosed Fan Cooled |
| Thermal Protection: |
No |
Ambient Temperature: |
40 °C |
| Drive End Bearing Size: |
6312 |
Opp Drive End Bearing Size: |
6210 |
| UL: |
Recognized |
CSA: |
Y |
| CE: |
Y |
IP Code: |
55 |
Technical Specifications
| Electrical Type: |
Squirrel Cage Inverter Rated |
Starting Method: |
Line Or Inverter |
| Poles: |
2 |
Rotation: |
Reversible |
| Resistance Main: |
.0833 Ohms |
Mounting: |
Rigid Base |
| Motor Orientation: |
Horizontal |
Drive End Bearing: |
Ball |
| Opp Drive End Bearing: |
Ball |
Frame Material: |
Cast Iron |
| Shaft Type: |
Hyd Pump Adaptor Shaft |
Overall Length: |
23.50 in |
| Shaft Diameter: |
1.875 in |
Shaft Extension: |
4.62 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 |
182.00 |
640.0 |
50.00 |
135.0 |
0 |
|
31.0 |
25.00 |
| Full Load |
28.80 |
100.0 |
37.00 |
100.0 |
3,558 |
|
87.5 |
25.00 |
| 1/3 |
177.00 |
614.0 |
42.50 |
115.0 |
1,200 |
|
|
25.00 |
| Break-Down |
118.00 |
410.0 |
103.00 |
278.0 |
3,350 |
|
71.0 |
25.00 |
| No Load |
10.00 |
35.0 |
0.00 |
0.0 |
3,600 |
|
6.0 |
25.00 |
| 2/3 |
158.00 |
550.0 |
45.00 |
122.0 |
2,400 |
|
|
25.00 |
| Pull-Up |
167.00 |
581.0 |
42.50 |
115.0 |
1,800 |
|
|
25.00 |
Load Characteristics
| % of Rated Load |
0 % |
25 % |
50 % |
75 % |
100 % |
115 % |
125 % |
| Current (Amps) |
10.00 |
12.00 |
16.70 |
22.40 |
28.80 |
33.00 |
35.50 |
| Rated Output (KW) |
0.80 |
5.30 |
10.20 |
15.10 |
20.20 |
23.30 |
25.40 |
| Efficiency (%) |
0.0 |
87.5 |
92.4 |
93.0 |
93.0 |
92.4 |
92.4 |
| Power Factor (%) |
6.0 |
55.0 |
76.0 |
84.0 |
87.5 |
88.5 |
89.0 |
| Speed (RPM) |
3,600 |
3,590 |
3,580 |
3,570 |
3,558 |
3,550 |
3,545 |
| Temp. Rise @ FL |
0.0 |
0.0 |
0.0 |
0.0 |
65.0 |
85.0 |
0.0 |
| Torque (ft-lbs) |
0.00 |
9.00 |
18.50 |
27.50 |
37.00 |
42.00 |
46.50 |
Marathon Motors
Regal Beloit
