Multispeed Motor, 15 & 3.75 HP, 3 Ph, 60 & 60 Hz, 460 & 460 V, 1800 & 1800 RPM, 256T Frame, TEFC
Multispeed Motor, 15 & 3.75 HP, 3 Ph, 60 & 60 Hz, 460 & 460 V, 1800 & 1800 RPM, 256T Frame, TEFC
Part#: 256TTFNA7250
Catalog#: Y384
Model#: 256TTFNA7250AA
Weight: 381 lb
List Price: $7,378.00
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Key Features
- Blue Chip® quality, 100% cast iron construction for rigidity and reduced vibration
- Internal and external epoxy paint
- Class F insulation
- Extended grease tubes, regreasable in service
- T-drains provided for effective drainage
- Shaft Slinger, Forsheda seals on both ends
- Actual test and vibration data supplied with each motor
Specifications
| Phase | Phase: 3 | Output HP | Output HP: 15 & 3.75 Hp |
| Output KW | Output KW: 11.2 & 2.8 kW | Voltage | Voltage: 460 & 460 V |
| Speed | Speed: 1770 & 875 rpm | Service Factor | Service Factor: 1.15 & 1.15 |
| Frame | Frame: 256T | Enclosure | Enclosure: Totally Enclosed Fan Cooled |
| Thermal Protection | Thermal Protection: No Protection | Efficiency | Efficiency: 90.2 & 86.5 % |
| Ambient Temperature | Ambient Temperature: 40 °C | Frequency | Frequency: 60 & 60 Hz |
| Current | Current: 18 & 6 A | Power Factor | Power Factor: 87 |
| Duty | Duty: Continuous | Insulation Class | Insulation Class: F |
| Design Code | Design Code: 1VT | KVA Code | KVA Code: J |
| Drive End Bearing Size | Drive End Bearing Size: 6309 | Opp Drive End Bearing Size | Opp Drive End Bearing Size: 6210 |
| UL | UL: Recognized | CSA | CSA: Y |
| CE | CE: Y | IP Code | IP Code: 55 |
| Number of Speeds | Number of Speeds: 2 |
| Electrical Type | Electrical Type: Squirrel Cage Induction Run | Starting Method | Starting Method: Across The Line |
| Poles | Poles: 4/8 | Rotation | Rotation: Reversible |
| Resistance Main | Resistance Main: .82 Ohms | Mounting | Mounting: Rigid Base |
| Motor Orientation | Motor Orientation: Horizontal | Drive End Bearing | Drive End Bearing: Ball |
| Opp Drive End Bearing | Opp Drive End Bearing: Ball | Frame Material | Frame Material: Cast Iron |
| Shaft Type | Shaft Type: T | Overall Length | Overall Length: 25.40 in |
| Frame Length | Frame Length: 12.25 in | Shaft Diameter | Shaft Diameter: 1.625 in |
| Shaft Extension | Shaft Extension: 4.2 in | Assembly/Box Mounting | Assembly/Box Mounting: F1/F2 CAPABLE |
| Service Factor | Service Factor: 1.15 | Frame Suffix | Frame Suffix: T |
| Current | Current: 18 A | Synchronous RPM | Synchronous RPM: 1800 & 1800 rpm |
| Frequency | Frequency: 60 Hz | Speed | Speed: 1770 rpm |
| Connection Drawing | Connection Drawing: A-EE7322 | Outline Drawing | Outline Drawing: B-SS203002-1225 |
| Voltage | Voltage: 460 V | Output KW | Output KW: 11.2 kW |
| Output HP | Output HP: 15 Hp | Frame Size | Frame Size: 256 |
| Torque UOM | Torque UOM: LB-FT | Efficiency | Efficiency: 90.2 % |
| Packaged Length | Packaged Length: 31.25 IN | Weight | Weight: 381.00 LB |
| UPC | UPC: 722856042255 | Packaged Width | Packaged Width: 22.25 IN |
| HTC | HTC: 8501.52.4000 | Country of Origin | Country of Origin: United States of America |
| Packaged Height | Packaged Height: 18.00 IN |
| % of Rated Load | 0% | 25% | 50% | 75% | 100% | 115% | 125% |
|---|---|---|---|---|---|---|---|
| % of Rated Load: Current (Amps) | 0%: 6.50 | 25%: 7.80 | 50%: 10.50 | 75%: 14.00 | 100%: 18.00 | 115%: 20.50 | 125%: 22.00 |
| % of Rated Load: Rated Output (KW) | 0%: 0.50 | 25%: 3.40 | 50%: 6.30 | 75%: 9.40 | 100%: 12.50 | 115%: 14.50 | 125%: 15.80 |
| % of Rated Load: Efficiency (%) | 0%: 0.0 | 25%: 84.0 | 50%: 89.5 | 75%: 90.2 | 100%: 90.2 | 115%: 90.2 | 125%: 89.5 |
| % of Rated Load: Power Factor (%) | 0%: 8.5 | 25%: 53.0 | 50%: 74.5 | 75%: 83.5 | 100%: 87.0 | 115%: 88.5 | 125%: 89.0 |
| % of Rated Load: Speed (RPM) | 0%: 1,800 | 25%: 1,792 | 50%: 1,785 | 75%: 1,775 | 100%: 1,770 | 115%: 1,762 | 125%: 1,758 |
| % of Rated Load: Temp. Rise @ FL | 0%: 0.0 | 25%: 0.0 | 50%: 0.0 | 75%: 0.0 | 100%: 70.0 | 115%: 90.0 | 125%: 0.0 |
| % of Rated Load: Torque (ft-lbs) | 0%: 0.00 | 25%: 11.00 | 50%: 22.00 | 75%: 33.50 | 100%: 44.50 | 115%: 51.50 | 125%: 56.00 |
| Curvepoint | Current (Amps) | Current (%) | Torque (ft-lbs) | Torque (%) | Speed (RPM) | Rated Output (KW) | Power Factor (%) | Rated Output (Hp) |
|---|---|---|---|---|---|---|---|---|
| Curvepoint: Full Load | Current (Amps): 18.00 | Current (%): 100.0 | Torque (ft-lbs): 44.50 | Torque (%): 100.0 | Speed (RPM): 1,770 | Rated Output (KW): | Power Factor (%): | Rated Output (Hp): 15.00 |
| Curvepoint: 1/3 | Current (Amps): 135.00 | Current (%): 750.0 | Torque (ft-lbs): 90.00 | Torque (%): 202.0 | Speed (RPM): 600 | Rated Output (KW): | Power Factor (%): | Rated Output (Hp): 15.00 |
| Curvepoint: 2/3 | Current (Amps): 105.00 | Current (%): 583.0 | Torque (ft-lbs): 95.00 | Torque (%): 213.0 | Speed (RPM): 1,200 | Rated Output (KW): | Power Factor (%): | Rated Output (Hp): 15.00 |
| Curvepoint: Break-Down | Current (Amps): 85.00 | Current (%): 472.0 | Torque (ft-lbs): 140.00 | Torque (%): 315.0 | Speed (RPM): 1,550 | Rated Output (KW): | Power Factor (%): 74.0 | Rated Output (Hp): 15.00 |
| Curvepoint: Pull-Up | Current (Amps): 120.00 | Current (%): 667.0 | Torque (ft-lbs): 85.00 | Torque (%): 191.0 | Speed (RPM): 900 | Rated Output (KW): | Power Factor (%): | Rated Output (Hp): 15.00 |
| Curvepoint: Locked-Rotor | Current (Amps): 145.00 | Current (%): 806.0 | Torque (ft-lbs): 110.00 | Torque (%): 247.0 | Speed (RPM): 0 | Rated Output (KW): | Power Factor (%): 46.0 | Rated Output (Hp): 15.00 |
| Curvepoint: No Load | Current (Amps): 6.50 | Current (%): 36.0 | Torque (ft-lbs): 0.00 | Torque (%): 0.0 | Speed (RPM): 1,800 | Rated Output (KW): | Power Factor (%): | Rated Output (Hp): 15.00 |
Efficiency
| Country | Complies with standards |
|---|---|
| Country: United States | Complies with standards: check_circle |
| Country: Canada | Complies with standards: check_circle |
| Country: Mexico | Complies with standards: check_circle |
| Country: Australia | Complies with standards: check_circle |
| Country: Brazil | Complies with standards: check_circle |
| Country: Chile | Complies with standards: check_circle |
| Country: China | Complies with standards: check_circle |
| Country: Europe | Complies with standards: check_circle |
| Country: Japan | Complies with standards: check_circle |
| Country: New Zealand | Complies with standards: check_circle |
| Country: Saudi Arabia | Complies with standards: check_circle |
| Country: South Korea | Complies with standards: check_circle |