Description
284THFPA8028 – Marathon 25 HP Variable Speed Motor, 3 phase, 1800 RPM, 230/460 V, 284T Frame, TEFC – Y569
284THFPA8028 Marathon 2000:1 With Encoder Provision Motors
Please advise CFM, static pressure, voltage, phase, and/or horsepower on specifications, drawings, or existing equipment for an accurate quote.
General Specifications
| UPC: |
722856025227 |
Weight: |
393 LB |
| Packaged Length: |
35 IN |
Packaged Width: |
26 IN |
| Packaged Height: |
21.14 IN |
Nameplate Specifications
| Output HP: |
25 Hp |
Output KW: |
18.7 kW |
| Frequency: |
60 Hz |
Voltage: |
230/460 V |
| Current: |
63.0/31.5 A |
Speed: |
1765 rpm |
| Service Factor: |
1 |
Phase: |
3 |
| Efficiency: |
91.7 % |
Power Factor: |
82 |
| Duty: |
Continuous |
Insulation Class: |
H |
| Design Code: |
INV |
KVA Code: |
G |
| Frame: |
284T |
Enclosure: |
Totally Enclosed Fan Cooled |
| Thermal Protection: |
Thermostats (N/C) |
Ambient Temperature: |
40 °C |
| Drive End Bearing Size: |
6311 |
Opp Drive End Bearing Size: |
6210 |
| UL: |
Recognized |
CSA: |
Y |
| CE: |
Y |
IP Code: |
43 |
Technical Specifications
| Electrical Type: |
Squirrel Cage Inverter Duty |
Starting Method: |
Inverter Only |
| Poles: |
4 |
Rotation: |
Reversible |
| Resistance Main: |
.325 Ohms |
Mounting: |
Rigid base |
| Motor Orientation: |
Horizontal |
Drive End Bearing: |
Ball |
| Opp Drive End Bearing: |
Ball |
Frame Material: |
Cast Iron |
| Shaft Type: |
T |
Overall Length: |
28.58 in |
| Frame Length: |
12.75 in |
Shaft Diameter: |
1.875 in |
| Shaft Extension: |
4.81 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 |
578.0 |
147.00 |
198.0 |
0 |
|
39.5 |
25.00 |
| Pull-Up |
165.00 |
524.0 |
140.00 |
188.0 |
900 |
|
|
25.00 |
| 2/3 |
150.00 |
476.0 |
155.00 |
208.0 |
1,200 |
|
|
25.00 |
| No Load |
14.00 |
44.0 |
0.00 |
0.0 |
1,800 |
|
|
25.00 |
| Break-Down |
115.00 |
365.0 |
195.00 |
262.0 |
1,625 |
|
66.0 |
25.00 |
| Full Load |
31.50 |
100.0 |
74.40 |
100.0 |
1,765 |
|
|
25.00 |
| 1/3 |
175.00 |
556.0 |
130.00 |
175.0 |
600 |
|
|
25.00 |
Load Characteristics
| % of Rated Load |
0 % |
25 % |
50 % |
75 % |
100 % |
125 % |
150 % |
200 % |
| Current (Amps) |
14.00 |
15.50 |
20.00 |
25.00 |
31.50 |
39.00 |
46.50 |
66.50 |
| Rated Output (KW) |
0.75 |
5.50 |
10.00 |
15.00 |
20.50 |
25.50 |
31.20 |
43.50 |
| Efficiency (%) |
0.0 |
86.5 |
91.0 |
92.4 |
91.7 |
91.0 |
88.5 |
84.0 |
| Power Factor (%) |
6.0 |
43.0 |
65.0 |
75.5 |
82.0 |
82.5 |
84.0 |
81.5 |
| Speed (RPM) |
1,800 |
1,794 |
1,785 |
1,775 |
1,765 |
1,760 |
1,745 |
1,715 |
| Temp. Rise @ FL |
0.0 |
0.0 |
0.0 |
0.0 |
65.0 |
0.0 |
0.0 |
0.0 |
| Torque (ft-lbs) |
0.00 |
18.50 |
37.00 |
55.50 |
74.40 |
93.50 |
112.00 |
150.00 |
Marathon Motors
Regal Beloit
