Description
326TTFS16574 – Marathon 50 HP Severe Duty Motor, 3 phase, 1800 RPM, 230/460 V, 326T Frame, TEFC – U876A
326TTFS16574 Marathon Low Voltage NEMA Cooling Tower Motors
Please advise CFM, static pressure, voltage, phase, and/or horsepower on specifications, drawings, or existing equipment for an accurate quote.
General Specifications
| UPC: |
722856018885 |
Weight: |
710 LB |
| Packaged Length: |
37.88 IN |
Packaged Width: |
31.88 IN |
| Packaged Height: |
15.44 IN |
Nameplate Specifications
| Output HP: |
50 Hp |
Output KW: |
37.0 kW |
| Frequency: |
60/50 Hz |
Voltage: |
230/460 V |
| Current: |
123.0/61.5 A |
Speed: |
1777 rpm |
| Service Factor: |
1.15 |
Phase: |
3 |
| Efficiency: |
94.5 % |
Power Factor: |
80.5 |
| Duty: |
Continuous |
Insulation Class: |
F |
| Design Code: |
B |
KVA Code: |
F |
| Frame: |
326T |
Enclosure: |
Totally Enclosed Fan Cooled |
| Thermal Protection: |
No |
Ambient Temperature: |
40 °C |
| Drive End Bearing Size: |
6312 |
Opp Drive End Bearing Size: |
6311 |
| UL: |
Recognized |
CSA: |
Y |
| CE: |
Y |
IP Code: |
55 |
Technical Specifications
| Electrical Type: |
Squirrel Cage Inverter Rated |
Starting Method: |
Line Or Inverter |
| Poles: |
4 |
Rotation: |
Reversible |
| Resistance Main: |
.027 Ohms |
Mounting: |
Rigid Base |
| Motor Orientation: |
Horizontal |
Drive End Bearing: |
Ball |
| Opp Drive End Bearing: |
Ball |
Frame Material: |
Cast Iron |
| Shaft Type: |
T |
Overall Length: |
30.38 in |
| Frame Length: |
13.00 in |
Shaft Diameter: |
2.125 in |
| Shaft Extension: |
5.49 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 |
25.70 |
41.8 |
0.00 |
0.0 |
1,800 |
|
3.0 |
50.00 |
| Full Load |
61.50 |
100.0 |
148.00 |
100.0 |
1,777 |
|
80.5 |
50.00 |
| 1/3 |
348.00 |
566.0 |
234.00 |
158.0 |
600 |
|
|
50.00 |
| Break-Down |
210.00 |
341.0 |
360.00 |
243.0 |
1,695 |
|
64.0 |
50.00 |
| Pull-Up |
330.00 |
537.0 |
234.00 |
158.0 |
900 |
|
|
50.00 |
| Locked-Rotor |
362.00 |
595.0 |
275.00 |
186.0 |
0 |
|
32.0 |
50.00 |
| 2/3 |
312.00 |
507.0 |
248.00 |
168.0 |
1,200 |
|
|
50.00 |
Load Characteristics
| % of Rated Load |
0 % |
25 % |
50 % |
75 % |
100 % |
115 % |
125 % |
| Current (Amps) |
25.70 |
29.60 |
38.00 |
49.00 |
61.50 |
70.00 |
76.00 |
| Rated Output (KW) |
1.30 |
10.40 |
20.00 |
29.80 |
40.00 |
46.00 |
50.00 |
| Efficiency (%) |
0.0 |
91.0 |
94.1 |
94.5 |
94.5 |
94.1 |
93.6 |
| Power Factor (%) |
3.0 |
43.0 |
65.5 |
76.0 |
80.5 |
82.0 |
82.5 |
| Speed (RPM) |
1,800 |
1,795 |
1,788 |
1,783 |
1,777 |
1,773 |
1,770 |
| Temp. Rise @ FL |
0.0 |
0.0 |
0.0 |
0.0 |
75.0 |
95.0 |
0.0 |
| Torque (ft-lbs) |
0.00 |
36.60 |
73.50 |
111.00 |
148.00 |
170.00 |
185.00 |
Marathon Motors
Regal Beloit
