Description
326TTDP4345 – Marathon 50 HP Fire Pump Motor, 3 phase, 1800 RPM, 230/460 V, 326T Frame, ODP – U514
326TTDP4345 Marathon Fire Pump Motors
General Specifications
| UPC: |
722856036025 |
Weight: |
515 LB |
| Packaged Length: |
35 IN |
Packaged Width: |
26 IN |
| Packaged Height: |
24.36 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: |
1770 rpm |
| Service Factor: |
1.15 |
Phase: |
3 |
| Efficiency: |
93 % |
Power Factor: |
81.5 |
| Duty: |
Continous |
Insulation Class: |
B |
| Design Code: |
B |
KVA Code: |
G |
| Frame: |
326T |
Enclosure: |
Drip Proof |
| Thermal Protection: |
No |
Ambient Temperature: |
50 °C |
| Drive End Bearing Size: |
6312 |
Opp Drive End Bearing Size: |
6311 |
| UL: |
Recognized |
CSA: |
Y |
| CE: |
Y |
IP Code: |
12 |
Technical Specifications
| Electrical Type: |
Squirrel Cage Induction Run |
Starting Method: |
Wye Start Delta Run |
| Poles: |
4 |
Rotation: |
Reversible |
| Resistance Main: |
.125 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: |
27.50 in |
| Frame Length: |
15.12 in |
Shaft Diameter: |
2.125 in |
| Shaft Extension: |
5.5 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) |
| Break-Down |
225.00 |
366.0 |
375.00 |
253.0 |
1,630 |
|
65.0 |
50.00 |
| Pull-Up |
300.00 |
488.0 |
240.00 |
162.0 |
900 |
|
|
50.00 |
| 1/3 |
325.00 |
528.0 |
240.00 |
162.0 |
600 |
|
|
50.00 |
| Locked-Rotor |
350.00 |
569.0 |
265.00 |
179.0 |
0 |
|
38.0 |
50.00 |
| No Load |
24.50 |
40.0 |
0.00 |
0.0 |
1,800 |
|
|
50.00 |
| Full Load |
61.50 |
100.0 |
148.00 |
100.0 |
1,770 |
|
|
50.00 |
| 2/3 |
275.00 |
447.0 |
260.00 |
176.0 |
1,200 |
|
|
50.00 |
Load Characteristics
| % of Rated Load |
0 % |
25 % |
50 % |
75 % |
100 % |
115 % |
125 % |
| Current (Amps) |
24.50 |
28.50 |
37.00 |
48.50 |
61.50 |
70.00 |
76.50 |
| Rated Output (KW) |
1.00 |
10.20 |
20.00 |
30.00 |
40.00 |
46.20 |
50.50 |
| Efficiency (%) |
0.0 |
91.7 |
93.6 |
93.6 |
93.0 |
93.0 |
92.4 |
| Power Factor (%) |
3.5 |
45.0 |
67.0 |
77.0 |
81.5 |
82.5 |
83.0 |
| Speed (RPM) |
1,800 |
1,792 |
1,785 |
1,778 |
1,770 |
1,765 |
1,760 |
| Temp. Rise @ FL |
0.0 |
0.0 |
0.0 |
0.0 |
45.0 |
60.0 |
0.0 |
| Torque (ft-lbs) |
0.00 |
36.50 |
73.50 |
112.00 |
148.00 |
171.00 |
186.00 |
Marathon Motors
Regal Beloit
