Description
LM21208 – Leeson 25 HP Variable Speed Motor, 3 phase, 1800 RPM, 230/460 V, 284T Frame, TEFC – LM21208
LM21208 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: |
691720311080 |
Weight: |
350 LB |
| Packaged Length: |
35 IN |
Packaged Width: |
26 IN |
| Packaged Height: |
22.42 IN |
Nameplate Specifications
| Output HP: |
25 Hp |
Output KW: |
18.7 kW |
| Frequency: |
60 Hz |
Voltage: |
230/460 V |
| Current: |
64.0/32.0 A |
Speed: |
1777 rpm |
| Service Factor: |
1 |
Phase: |
3 |
| Efficiency: |
93.6 % |
Power Factor: |
79 |
| Duty: |
Continuous |
Insulation Class: |
F |
| Design Code: |
INV |
KVA Code: |
G |
| Frame: |
284T |
Enclosure: |
Totally Enclosed Fan Cooled |
| Thermal Protection: |
No |
Ambient Temperature: |
40 °C |
| Drive End Bearing Size: |
6312 |
Opp Drive End Bearing Size: |
6209 |
| UL: |
Recognized |
CSA: |
Y |
| CE: |
Y |
IP Code: |
43 |
Technical Specifications
| Electrical Type: |
Squirrel Cage Inverter Duty |
Starting Method: |
Wye Start Delta Run Or Inverter |
| Poles: |
4 |
Rotation: |
Reversible |
| Resistance Main: |
.286 Ohms |
Mounting: |
Rigid Base |
| Motor Orientation: |
Horizontal |
Drive End Bearing: |
Ball |
| Opp Drive End Bearing: |
Ball |
Frame Material: |
Aluminum |
| Shaft Type: |
T |
Overall Length: |
26.62 in |
| Frame Length: |
13.75 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) |
| 2/3 |
156.00 |
489.0 |
140.00 |
216.0 |
800 |
|
0.0 |
25.00 |
| No Load |
13.50 |
42.0 |
0.00 |
0.0 |
1,800 |
|
3.5 |
25.00 |
| Full Load |
32.00 |
100.0 |
74.00 |
100.0 |
1,777 |
|
79.0 |
25.00 |
| Pull-Up |
165.00 |
518.0 |
123.00 |
204.0 |
1,300 |
|
0.0 |
25.00 |
| Break-Down |
101.00 |
316.0 |
165.00 |
223.0 |
1,700 |
|
64.0 |
25.00 |
| 1/3 |
175.00 |
546.0 |
152.00 |
204.0 |
400 |
|
0.0 |
25.00 |
| Locked-Rotor |
182.00 |
575.0 |
178.00 |
241.0 |
0 |
|
44.0 |
25.00 |
Load Characteristics
| % of Rated Load |
0 % |
25 % |
50 % |
75 % |
100 % |
115 % |
125 % |
| Current (Amps) |
13.50 |
15.60 |
19.80 |
25.30 |
32.00 |
36.00 |
40.00 |
| Rated Output (KW) |
0.75 |
5.30 |
10.00 |
15.00 |
20.00 |
23.30 |
25.30 |
| Efficiency (%) |
0.0 |
89.5 |
93.0 |
93.6 |
93.6 |
93.0 |
92.4 |
| Power Factor (%) |
3.5 |
41.5 |
63.5 |
74.0 |
79.0 |
80.0 |
81.0 |
| Speed (RPM) |
1,800 |
1,795 |
1,790 |
1,785 |
1,777 |
1,773 |
1,770 |
| Temp. Rise @ FL |
0.0 |
0.0 |
0.0 |
0.0 |
65.0 |
85.0 |
105.0 |
| Torque (ft-lbs) |
0.00 |
18.30 |
36.50 |
55.00 |
74.00 |
85.00 |
93.00 |
Leeson Motors
Regal Beloit
