Description
LM28968 – Leeson 7.50 HP General Purpose Motor, 3 phase, 3600 RPM, 230/460 V, 213T Frame, TEFC – LM28968
LM28968 Leeson Three Phase TEFC Motors
Please advise CFM, static pressure, voltage, phase, and/or horsepower on specifications, drawings, or existing equipment for an accurate quote.
General Specifications
| UPC: |
691720020883 |
Weight: |
98 LB |
| Packaged Length: |
22.5 IN |
Packaged Width: |
16.81 IN |
| Packaged Height: |
14 IN |
Nameplate Specifications
| Output HP: |
7.50 Hp |
Output KW: |
5.6 kW |
| Frequency: |
60 Hz |
Voltage: |
230/460 V |
| Current: |
17.8/8.9 A |
Speed: |
3540 rpm |
| Service Factor: |
1.25 |
Phase: |
3 |
| Efficiency: |
90.2 % |
Power Factor: |
87 |
| Duty: |
Continuous |
Insulation Class: |
F |
| Design Code: |
B |
KVA Code: |
H |
| Frame: |
213T |
Enclosure: |
Totally Enclosed Fan Cooled |
| Thermal Protection: |
No |
Ambient Temperature: |
40 °C |
| Drive End Bearing Size: |
6208 |
Opp Drive End Bearing Size: |
6206 |
| UL: |
Recognized |
CSA: |
Y |
| CE: |
Y |
IP Code: |
43 |
Technical Specifications
| Electrical Type: |
Squirrel Cage Induction Run |
Starting Method: |
Across The Line |
| Poles: |
2 |
Rotation: |
Reversible |
| Resistance Main: |
1.163 Ohms |
Mounting: |
Rigid base |
| Motor Orientation: |
Horizontal |
Drive End Bearing: |
Ball |
| Opp Drive End Bearing: |
Ball |
Frame Material: |
Aluminum |
| Shaft Type: |
T |
Overall Length: |
18.84 in |
| Frame Length: |
9.50 in |
Shaft Diameter: |
1.375 in |
| Shaft Extension: |
3.38 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) |
| No Load |
3.00 |
34.0 |
0.00 |
0.0 |
3,600 |
|
|
7.50 |
| 2/3 |
54.00 |
607.0 |
25.00 |
225.0 |
2,400 |
|
|
7.50 |
| Full Load |
8.90 |
100.0 |
11.10 |
100.0 |
3,540 |
|
|
7.50 |
| Break-Down |
40.00 |
449.0 |
38.00 |
342.0 |
3,250 |
|
72.0 |
7.50 |
| Locked-Rotor |
63.50 |
713.0 |
24.00 |
216.0 |
0 |
|
40.0 |
7.50 |
| 1/3 |
60.00 |
674.0 |
20.00 |
180.0 |
1,200 |
|
|
7.50 |
| Pull-Up |
57.00 |
640.0 |
22.00 |
198.0 |
1,800 |
|
|
7.50 |
Load Characteristics
| % of Rated Load |
0 % |
25 % |
50 % |
75 % |
100 % |
115 % |
125 % |
| Current (Amps) |
3.00 |
4.00 |
5.00 |
7.00 |
8.90 |
10.00 |
11.00 |
| Rated Output (KW) |
0.20 |
1.50 |
3.00 |
4.50 |
6.00 |
6.50 |
7.50 |
| Efficiency (%) |
0.0 |
80.0 |
86.5 |
89.5 |
90.2 |
90.2 |
89.5 |
| Power Factor (%) |
9.0 |
54.0 |
74.5 |
83.0 |
87.0 |
88.0 |
89.0 |
| Speed (RPM) |
3,600 |
3,585 |
3,575 |
3,560 |
3,540 |
3,535 |
3,530 |
| Temp. Rise @ FL |
0.0 |
0.0 |
0.0 |
0.0 |
40.0 |
50.0 |
60.0 |
| Torque (ft-lbs) |
0.00 |
2.50 |
5.50 |
8.50 |
11.10 |
12.50 |
14.00 |
Leeson Motors
Regal Beloit
