Description
LM21843 – Leeson 7.50 HP Automotive Duty Motor, 3 phase, 1800 RPM, 460 V, 254UC Frame, TEFC – LM21843
LM21843 Leeson Automotive Duty Motors
Please advise CFM, static pressure, voltage, phase, and/or horsepower on specifications, drawings, or existing equipment for an accurate quote.
General Specifications
| UPC: |
691720023150 |
Weight: |
263 LB |
| Packaged Length: |
27 IN |
Packaged Width: |
20.5 IN |
| Packaged Height: |
18 IN |
Nameplate Specifications
| Output HP: |
7.50 Hp |
Output KW: |
5.6 kW |
| Frequency: |
60 Hz |
Voltage: |
460 V |
| Current: |
9.6 A |
Speed: |
1770 rpm |
| Service Factor: |
1 |
Phase: |
3 |
| Efficiency: |
91.7 % |
Power Factor: |
80 |
| Duty: |
Continuous |
Insulation Class: |
F |
| Design Code: |
B |
KVA Code: |
H |
| Frame: |
254UC |
Enclosure: |
Totally Enclosed Fan Cooled |
| Thermal Protection: |
No |
Ambient Temperature: |
65 °C |
| Drive End Bearing Size: |
309 |
Opp Drive End Bearing Size: |
207 |
| UL: |
No |
CSA: |
Y |
| CE: |
Y |
IP Code: |
43 |
Technical Specifications
| Electrical Type: |
Squirrel Cage Induction Run |
Starting Method: |
Across The Line |
| Poles: |
4 |
Rotation: |
Reversible |
| Resistance Main: |
1.17 Ohms |
Mounting: |
Rigid Base |
| Motor Orientation: |
Horizontal |
Drive End Bearing: |
Ball |
| Opp Drive End Bearing: |
Ball |
Frame Material: |
Cast Iron |
| Shaft Type: |
U |
Overall Length: |
23.89 in |
| Frame Length: |
11.75 in |
Shaft Diameter: |
1.375 in |
| Shaft Extension: |
3.75 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 |
54.00 |
563.0 |
57.00 |
256.0 |
1,200 |
|
|
7.50 |
| Full Load |
9.60 |
100.0 |
22.30 |
100.0 |
1,770 |
|
|
7.50 |
| Locked-Rotor |
63.50 |
661.0 |
52.00 |
233.0 |
0 |
|
45.0 |
7.50 |
| No Load |
4.50 |
47.0 |
0.00 |
0.0 |
1,800 |
|
|
7.50 |
| Pull-Up |
57.00 |
594.0 |
49.00 |
220.0 |
900 |
|
|
7.50 |
| 1/3 |
61.00 |
635.0 |
46.00 |
206.0 |
600 |
|
|
7.50 |
| Break-Down |
45.00 |
469.0 |
72.00 |
323.0 |
1,600 |
|
68.0 |
7.50 |
Load Characteristics
| % of Rated Load |
0 % |
25 % |
50 % |
75 % |
100 % |
115 % |
125 % |
| Current (Amps) |
4.50 |
5.00 |
6.00 |
7.50 |
9.60 |
11.00 |
12.00 |
| Rated Output (KW) |
0.20 |
1.50 |
3.00 |
4.50 |
6.00 |
7.00 |
8.00 |
| Efficiency (%) |
0.0 |
85.5 |
90.2 |
91.0 |
91.7 |
91.0 |
90.2 |
| Power Factor (%) |
5.5 |
42.0 |
63.0 |
74.0 |
80.0 |
81.0 |
82.0 |
| Speed (RPM) |
1,800 |
1,790 |
1,785 |
1,775 |
1,770 |
1,765 |
1,760 |
| Temp. Rise @ FL |
0.0 |
0.0 |
0.0 |
0.0 |
45.0 |
60.0 |
75.0 |
| Torque (ft-lbs) |
0.00 |
5.50 |
11.00 |
16.50 |
22.30 |
25.50 |
28.00 |
Leeson Motors
Regal Beloit
