Other Purpose Motor, 20 & 15 HP, 3 Ph, 60 & 50 Hz, 230/460 & 190/380 V, 1800 & 1500 RPM, 256JM Frame, TEFC
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Other Purpose Motor, 20 & 15 HP, 3 Ph, 60 & 50 Hz, 230/460 & 190/380 V, 1800 & 1500 RPM, 256JM Frame, TEFC
Part#: 256TTFL5055
Catalog#: M421
Model#: 256TTFL5055DT
Weight: 455 lb
Key Features
- NEMA JM pump shaft dimensions
- Ball bearings, mechanically locked on shaft end
- Continuous duty
- 1.15 Service Factor (except as noted)
- UL Recognized and CSA Certified
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: 1755 & 1465 rpm | Service Factor | Service Factor: 1.15 & 1.15 |
| Frame | Frame: 256JM | Enclosure | Enclosure: Totally Enclosed Fan Cooled |
| Thermal Protection | Thermal Protection: No Protection | Efficiency | Efficiency: 88.5 & 88.5 % |
| Ambient Temperature | Ambient Temperature: 40 °C | Frequency | Frequency: 60 & 50 Hz |
| Current | Current: 52/26 & 48/24 A | Power Factor | Power Factor: 81 |
| 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: 6207 |
| 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: 4 | Rotation | Rotation: Reversible |
| Resistance Main | Resistance Main: .484 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: Aluminum |
| Shaft Type | Shaft Type: JM | Overall Length | Overall Length: 26.49 in |
| Frame Length | Frame Length: 12.75 in | Shaft Diameter | Shaft Diameter: 1.250 in |
| Shaft Extension | Shaft Extension: 5.28 in | Assembly/Box Mounting | Assembly/Box Mounting: F1/F2 Capable |
| Service Factor | Service Factor: 1.15 | Frame Suffix | Frame Suffix: JM |
| Current | Current: 52.0/26.0 A | Synchronous RPM | Synchronous RPM: 1800 & 1500 rpm |
| Frequency | Frequency: 60 Hz | Speed | Speed: 1755 rpm |
| Connection Drawing | Connection Drawing: A-EE7308K | Outline Drawing | Outline Drawing: B-SS330112-1275A |
| 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: 88.5 % |
| Packaged Length | Packaged Length: 30.75 IN | Weight | Weight: 455.00 LB |
| UPC | UPC: 722856130433 | 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%: 10.00 | 25%: 11.50 | 50%: 15.00 | 75%: 20.00 | 100%: 26.00 | 115%: 29.00 | 125%: 32.50 |
| % of Rated Load: Rated Output (KW) | 0%: 1.00 | 25%: 4.50 | 50%: 8.50 | 75%: 12.50 | 100%: 17.00 | 115%: 19.00 | 125%: 21.50 |
| % of Rated Load: Efficiency (%) | 0%: 0.0 | 25%: 82.5 | 50%: 88.0 | 75%: 89.0 | 100%: 88.5 | 115%: 88.5 | 125%: 87.0 |
| % of Rated Load: Power Factor (%) | 0%: 0.0 | 25%: 48.5 | 50%: 70.0 | 75%: 78.5 | 100%: 81.0 | 115%: 82.0 | 125%: 83.0 |
| % of Rated Load: Speed (RPM) | 0%: 1,800 | 25%: 1,790 | 50%: 1,780 | 75%: 1,765 | 100%: 1,755 | 115%: 1,745 | 125%: 1,735 |
| % of Rated Load: Temp. Rise @ FL | 0%: 0.0 | 25%: 0.0 | 50%: 0.0 | 75%: 0.0 | 100%: 75.0 | 115%: 105.0 | 125%: 0.0 |
| % of Rated Load: Torque (ft-lbs) | 0%: 0.00 | 25%: 14.50 | 50%: 29.50 | 75%: 44.50 | 100%: 60.00 | 115%: 68.00 | 125%: 75.50 |
| Curvepoint | Current (Amps) | Current (%) | Torque (ft-lbs) | Torque (%) | Speed (RPM) | Rated Output (KW) | Power Factor (%) | Rated Output (Hp) |
|---|---|---|---|---|---|---|---|---|
| Curvepoint: Pull-Up | Current (Amps): 126.00 | Current (%): 485.0 | Torque (ft-lbs): 112.00 | Torque (%): 187.0 | Speed (RPM): 1,000 | Rated Output (KW): | Power Factor (%): | Rated Output (Hp): 20.00 |
| Curvepoint: 2/3 | Current (Amps): 120.00 | Current (%): 462.0 | Torque (ft-lbs): 122.00 | Torque (%): 203.0 | Speed (RPM): 1,200 | Rated Output (KW): | Power Factor (%): | Rated Output (Hp): 20.00 |
| Curvepoint: 1/3 | Current (Amps): 134.00 | Current (%): 515.0 | Torque (ft-lbs): 107.00 | Torque (%): 178.0 | Speed (RPM): 700 | Rated Output (KW): | Power Factor (%): | Rated Output (Hp): 20.00 |
| Curvepoint: Break-Down | Current (Amps): 90.00 | Current (%): 346.0 | Torque (ft-lbs): 152.00 | Torque (%): 253.0 | Speed (RPM): 1,595 | Rated Output (KW): | Power Factor (%): 67.0 | Rated Output (Hp): 20.00 |
| Curvepoint: Locked-Rotor | Current (Amps): 145.00 | Current (%): 558.0 | Torque (ft-lbs): 120.00 | Torque (%): 200.0 | Speed (RPM): 0 | Rated Output (KW): | Power Factor (%): 42.0 | 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: cancel |
| Country: Australia | Complies with standards: cancel |
| Country: Brazil | Complies with standards: cancel |
| Country: Chile | Complies with standards: cancel |
| 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: cancel |
| Country: Saudi Arabia | Complies with standards: cancel |
| Country: South Korea | Complies with standards: check_circle |