Other Purpose Motor, 20 & 15 HP, 3 Ph, 60 & 50 Hz, 230/460 & 190/380 V, 3600 & 3000 RPM, 256T Frame, TEFC
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Other Purpose Motor, 20 & 15 HP, 3 Ph, 60 & 50 Hz, 230/460 & 190/380 V, 3600 & 3000 RPM, 256T Frame, TEFC
Part#: 256TTFNA4001
Catalog#: U649
Model#: 256TTFNA4001AB
Weight: 331 lb
Key Features
- Meets or exceeds NEMA Premium® efficiencies, except where noted NEMA Premium® models are in compliance with EISA2007
- Suitable for use on a VFD. Variable Torque and Constant Torque (as noted)
- 1.15 Service Factor on sinewave, 1.0 Service Factor on IGBT power
- F1 conduit box on Rigid Base, F3 on C-Face Footed (Rigid Base) motors
- Bearing Current Protection (BCP), as noted
- Shaft slinger, Class F insulation, 1.15 Service Factor, Ball bearings (except as noted
- C-Face Footed models are rated 60/50 Hz, same HP
- Motors accept C-face kits, as noted
- UL Recognized, CSA Certified and CE Mark
Specifications
| Phase | Phase: 3 | Output HP | Output HP: 20 & 15 Hp |
| Output KW | Output KW: 14.9 & 11.2 kW | Voltage | Voltage: 230/460 & 190/380 V |
| Speed | Speed: 3530 & 2940 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 & 90.2 % |
| Ambient Temperature | Ambient Temperature: 40 °C | Frequency | Frequency: 60 & 50 Hz |
| Current | Current: 47/23.5 & 42/21 A | Power Factor | Power Factor: 87.5 |
| Duty | Duty: Continuous | Insulation Class | Insulation Class: F |
| Design Code | Design Code: B | KVA Code | KVA Code: G |
| 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: 43 |
| Number of Speeds | Number of Speeds: 1 |
| Electrical Type | Electrical Type: Squirrel Cage Induction Run | Starting Method | Starting Method: Across The Line |
| Poles | Poles: 2 | Rotation | Rotation: Reversible |
| Resistance Main | Resistance Main: .398 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: 25.27 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: 47.0/23.5 A | Synchronous RPM | Synchronous RPM: 3600 & 3000 rpm |
| Frequency | Frequency: 60 Hz | Speed | Speed: 3530 rpm |
| Connection Drawing | Connection Drawing: A-EE7308 | Outline Drawing | Outline Drawing: B-SS203015-1225 |
| Voltage | Voltage: 230/460 V | Output KW | Output KW: 14.9 kW |
| Output HP | Output HP: 20 Hp | Frame Size | Frame Size: 256 |
| Torque UOM | Torque UOM: LB-FT | Efficiency | Efficiency: 90.2 % |
| Packaged Length | Packaged Length: 30.75 IN | Weight | Weight: 331.00 LB |
| Packaged Width | Packaged Width: 21.75 IN | HTC | HTC: 8501.52.8040 |
| 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%: 6.80 | 25%: 9.00 | 50%: 13.00 | 75%: 18.00 | 100%: 23.50 | 115%: 27.00 | 125%: 29.00 |
| % of Rated Load: Rated Output (KW) | 0%: 1.00 | 25%: 4.50 | 50%: 8.50 | 75%: 12.50 | 100%: 16.50 | 115%: 19.00 | 125%: 21.00 |
| % of Rated Load: Efficiency (%) | 0%: 0.0 | 25%: 86.5 | 50%: 90.2 | 75%: 91.0 | 100%: 90.2 | 115%: 90.2 | 125%: 89.5 |
| % of Rated Load: Power Factor (%) | 0%: 9.5 | 25%: 60.0 | 50%: 78.5 | 75%: 85.0 | 100%: 87.5 | 115%: 88.0 | 125%: 88.0 |
| % of Rated Load: Speed (RPM) | 0%: 3,600 | 25%: 3,585 | 50%: 3,570 | 75%: 3,550 | 100%: 3,530 | 115%: 3,520 | 125%: 3,510 |
| % of Rated Load: Temp. Rise @ FL | 0%: 0.0 | 25%: 0.0 | 50%: 0.0 | 75%: 0.0 | 100%: 55.0 | 115%: 75.0 | 125%: 95.0 |
| % of Rated Load: Torque (ft-lbs) | 0%: 0.00 | 25%: 7.40 | 50%: 14.80 | 75%: 22.20 | 100%: 30.00 | 115%: 34.50 | 125%: 37.50 |
| Curvepoint | Current (Amps) | Current (%) | Torque (ft-lbs) | Torque (%) | Speed (RPM) | Rated Output (KW) | Power Factor (%) | Rated Output (Hp) |
|---|---|---|---|---|---|---|---|---|
| Curvepoint: Break-Down | Current (Amps): 90.00 | Current (%): 383.0 | Torque (ft-lbs): 87.00 | Torque (%): 290.0 | Speed (RPM): 3,200 | Rated Output (KW): | Power Factor (%): 70.0 | Rated Output (Hp): 20.00 |
| Curvepoint: 2/3 | Current (Amps): 125.00 | Current (%): 532.0 | Torque (ft-lbs): 57.00 | Torque (%): 190.0 | Speed (RPM): 2,400 | Rated Output (KW): | Power Factor (%): | Rated Output (Hp): 20.00 |
| Curvepoint: Full Load | Current (Amps): 24.00 | Current (%): 102.0 | Torque (ft-lbs): 30.00 | Torque (%): 100.0 | Speed (RPM): 3,530 | Rated Output (KW): | Power Factor (%): | Rated Output (Hp): 20.00 |
| Curvepoint: Pull-Up | Current (Amps): 135.00 | Current (%): 574.0 | Torque (ft-lbs): 50.00 | Torque (%): 167.0 | Speed (RPM): 1,800 | Rated Output (KW): | Power Factor (%): | Rated Output (Hp): 20.00 |
| Curvepoint: 1/3 | Current (Amps): 140.00 | Current (%): 596.0 | Torque (ft-lbs): 45.00 | Torque (%): 150.0 | Speed (RPM): 1,200 | Rated Output (KW): | Power Factor (%): | Rated Output (Hp): 20.00 |
| Curvepoint: Locked-Rotor | Current (Amps): 145.00 | Current (%): 617.0 | Torque (ft-lbs): 52.00 | Torque (%): 173.0 | Speed (RPM): 0 | Rated Output (KW): | Power Factor (%): 36.5 | Rated Output (Hp): 20.00 |
| Curvepoint: No Load | Current (Amps): 6.80 | Current (%): 29.0 | Torque (ft-lbs): 0.00 | Torque (%): 0.0 | Speed (RPM): 3,600 | Rated Output (KW): | Power Factor (%): | Rated Output (Hp): 20.00 |
Efficiency
| Country | Complies with standards |
|---|---|
| Country: United States | Complies with standards: cancel |
| Country: Canada | Complies with standards: cancel |
| 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: cancel |
| Country: Europe | Complies with standards: cancel |
| Country: Japan | Complies with standards: check_circle |
| Country: New Zealand | Complies with standards: check_circle |
| Country: Saudi Arabia | Complies with standards: cancel |
| Country: South Korea | Complies with standards: check_circle |
