Description
LM21847 – Leeson 7.50 HP Automotive Duty Motor, 3 phase, 1200 RPM, 460 V, 256UC Frame, TEFC – LM21847
LM21847 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: |
691720023198 |
Weight: |
260 LB |
| Packaged Length: |
31.19 IN |
Packaged Width: |
22.25 IN |
| Packaged Height: |
18.62 IN |
Nameplate Specifications
| Output HP: |
7.50 Hp |
Output KW: |
5.6 kW |
| Frequency: |
60 Hz |
Voltage: |
460 V |
| Current: |
9.9 A |
Speed: |
1175 rpm |
| Service Factor: |
1 |
Phase: |
3 |
| Efficiency: |
91 % |
Power Factor: |
78 |
| Duty: |
Continuous |
Insulation Class: |
F |
| Design Code: |
B |
KVA Code: |
H |
| Frame: |
256UC |
Enclosure: |
Totally Enclosed Fan Cooled |
| Thermal Protection: |
No |
Ambient Temperature: |
65 °C |
| Drive End Bearing Size: |
309 |
Opp Drive End Bearing Size: |
210 |
| UL: |
Recognized |
CSA: |
Y |
| CE: |
Y |
IP Code: |
43 |
Technical Specifications
| Electrical Type: |
Squirrel Cage Induction Run |
Starting Method: |
Across The Line |
| Poles: |
6 |
Rotation: |
Reversible |
| Resistance Main: |
1.319 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: |
25.52 in |
| Frame Length: |
12.25 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) |
| Full Load |
9.90 |
100.0 |
33.50 |
100.0 |
1,175 |
|
|
7.50 |
| No Load |
4.80 |
48.0 |
0.00 |
0.0 |
1,200 |
|
|
7.50 |
| 2/3 |
57.00 |
576.0 |
77.00 |
230.0 |
800 |
|
|
7.50 |
| Break-Down |
39.50 |
399.0 |
103.00 |
307.0 |
1,065 |
|
70.0 |
7.50 |
| Pull-Up |
59.00 |
596.0 |
69.00 |
206.0 |
600 |
|
|
7.50 |
| Locked-Rotor |
63.50 |
641.0 |
72.00 |
215.0 |
0 |
|
42.0 |
7.50 |
| 1/3 |
61.00 |
616.0 |
64.00 |
191.0 |
250 |
|
|
7.50 |
Load Characteristics
| % of Rated Load |
0 % |
25 % |
50 % |
75 % |
100 % |
115 % |
125 % |
| Current (Amps) |
4.80 |
5.30 |
6.50 |
8.00 |
9.90 |
11.00 |
12.00 |
| Rated Output (KW) |
0.30 |
1.50 |
3.00 |
4.50 |
6.00 |
7.00 |
8.00 |
| Efficiency (%) |
0.0 |
85.5 |
90.2 |
91.0 |
91.0 |
90.2 |
90.2 |
| Power Factor (%) |
7.0 |
40.0 |
61.0 |
72.5 |
78.0 |
80.0 |
80.5 |
| Speed (RPM) |
1,200 |
1,195 |
1,190 |
1,180 |
1,175 |
1,170 |
1,165 |
| Temp. Rise @ FL |
0.0 |
25.0 |
20.0 |
0.0 |
40.0 |
55.0 |
70.0 |
| Torque (ft-lbs) |
0.00 |
8.00 |
16.50 |
25.00 |
33.50 |
38.50 |
42.00 |
Leeson Motors
Regal Beloit
