Description
LM21204 – Leeson 20 HP Variable Speed Motor, 3 phase, 3600 RPM, 230/460 V, 256T Frame, TEFC – LM21204
LM21204 Leeson 4:1 Speed Ratio Motors
Please advise CFM, static pressure, voltage, phase, and/or horsepower on specifications, drawings, or existing equipment for an accurate quote.
General Specifications
| UPC: |
691720045183 |
Weight: |
236 LB |
| Packaged Length: |
30.75 IN |
Packaged Width: |
21.75 IN |
| Packaged Height: |
18 IN |
Nameplate Specifications
| Output HP: |
20 Hp |
Output KW: |
14.9 kW |
| Frequency: |
60 Hz |
Voltage: |
230/460 V |
| Current: |
47.0/23.5 A |
Speed: |
3530 rpm |
| Service Factor: |
1 |
Phase: |
3 |
| Efficiency: |
90.2 % |
Power Factor: |
87.5 |
| Duty: |
Continuous |
Insulation Class: |
F |
| Design Code: |
B |
KVA Code: |
G |
| Frame: |
256T |
Enclosure: |
Totally Enclosed Fan Cooled |
| 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: |
43 |
Technical Specifications
| Electrical Type: |
Squirrel Cage Inverter Duty |
Starting Method: |
Inverter Only |
| Poles: |
2 |
Rotation: |
Reversible |
| Resistance Main: |
.398 Ohms |
Mounting: |
Rigid base |
| Motor Orientation: |
Horizontal |
Drive End Bearing: |
Ball |
| Opp Drive End Bearing: |
Ball |
Frame Material: |
Aluminum |
| Shaft Type: |
T |
Overall Length: |
25.26 in |
| Frame Length: |
13.88 in |
Shaft Diameter: |
1.625 in |
| Shaft Extension: |
4 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 |
145.00 |
617.0 |
52.00 |
173.0 |
0 |
|
36.5 |
20.00 |
| Pull-Up |
135.00 |
574.0 |
50.00 |
167.0 |
1,800 |
|
|
20.00 |
| 1/3 |
140.00 |
596.0 |
45.00 |
150.0 |
1,200 |
|
|
20.00 |
| No Load |
6.80 |
29.0 |
0.00 |
0.0 |
3,600 |
|
|
20.00 |
| Full Load |
23.50 |
100.0 |
30.00 |
100.0 |
3,530 |
|
|
20.00 |
| 2/3 |
125.00 |
532.0 |
57.00 |
190.0 |
2,400 |
|
|
20.00 |
| Break-Down |
90.00 |
383.0 |
87.00 |
290.0 |
3,200 |
|
70.0 |
20.00 |
Load Characteristics
| % of Rated Load |
0 % |
25 % |
50 % |
75 % |
100 % |
125 % |
150 % |
200 % |
| Current (Amps) |
6.80 |
9.00 |
13.00 |
18.00 |
23.50 |
29.00 |
0.00 |
0.00 |
| Rated Output (KW) |
1.00 |
4.50 |
8.50 |
12.50 |
16.50 |
21.00 |
0.00 |
0.00 |
| Efficiency (%) |
0.0 |
86.5 |
90.2 |
91.0 |
90.2 |
89.5 |
0.0 |
0.0 |
| Power Factor (%) |
9.5 |
60.0 |
78.5 |
85.0 |
87.5 |
88.0 |
0.0 |
0.0 |
| Speed (RPM) |
3,600 |
3,585 |
3,570 |
3,550 |
3,530 |
3,510 |
0 |
0 |
| Temp. Rise @ FL |
0.0 |
0.0 |
0.0 |
0.0 |
50.0 |
0.0 |
0.0 |
0.0 |
| Torque (ft-lbs) |
0.00 |
7.40 |
14.80 |
22.20 |
30.00 |
37.50 |
0.00 |
0.00 |
Leeson Motors
Regal Beloit
