Marathon Electric Explosion Proof Motor, 250 HP, 3 Ph, 60 Hz, 460 V, 1800 RPM, 449T Frame, EPFC
Regular price
$47,260.00 USD
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Explosion Proof Motor, 250 HP, 3 Ph, 60 Hz, 460 V, 1800 RPM, 449T Frame, EPFC
Features
- Meets NEMA Premium® efficiency
- 10:1 Variable torque, see Inverter Duty column for constant torque
- MAX GUARD® Class F insulation system
- Blue Chip® quality, 100% cast iron construction for rigidity and reduced vibration
- Internal and external epoxy paint
- 1.15 Service Factor on sinewave or 1.0 Service Factor on IGBT power
- Precision balanced to .08”/sec, Extended grease tubes
- Normally closed thermostats (must be connected to control circuit)
- Meets temperature code T3B, Shaft slinger
- Roller bearing on shaft end for belted load only
Specifications
| Performance & Electrical | |
| Power | 250 HP |
| Power (dual rating) | 250 HP |
| Power | 187.0 kW |
| Voltage | 460 V |
| Phase | 3 |
| Frequency | 60 Hz |
| Speed (max) | 1785 RPM |
| Speed (dual) | 1785 RPM |
| Full-load current | 285.0 A |
| Current (dual) | 285.0 A |
| Nominal efficiency | 96.5% |
| Power factor | 86% |
| Service factor | 1.15 |
| Number of poles | 4 |
| Number of speeds | 1 |
| NEMA design | B |
| KVA code | G |
| Duty | Continuous |
| Electrical type | Squirrel Cage Inverter Rated |
| Starting method | Line Or Inverter |
| Main winding resistance | .0107 Ω |
| Frame & Mechanical | |
| Frame | 449T |
| Frame size | 449 |
| Frame suffix | T |
| Frame material | Cast Iron |
| Frame length | 28.75 in |
| Enclosure | Explosion Proof Fan cooled |
| IP rating | IP54 |
| Insulation class | F |
| Mounting | RIGID |
| Assembly / conduit box | F1 ONLY |
| Orientation | Horizontal |
| Rotation | Reversible |
| Max ambient | 40°C |
| Shaft & Bearings | |
| Shaft diameter | 3.375 in |
| Shaft extension | 8.76 in |
| Shaft type | T |
| C dimension | 51.85 in |
| Drive-end bearing | NU319 |
| Drive-end bearing type | Roller |
| Opp. drive-end bearing | 6318 |
| Opp. drive-end bearing type | Ball |
| Overload protection | Thermostat |
| Compliance & Certifications | |
| CE | N |
| CSA | N |
| UL | UL Listed; also, UL Certified for Canada |
| Hazardous location | DIV 1 EXP PROOF CL I GR CD CL II GR FG T3B |
| Connection drawing | A-EE7300T |
| Outline drawing | B-SS515578-2875 |
| Dimensions & Weight | |
| Overall dimensions (L × W × H) | 56.00 × 46.00 × 28.60 in |
| Weight | 3,012.00 lb |
| Identification | |
| Manufacturer part / model | 449TTGS16537 |
| Catalog number | E591 |
| UPC | 722856024022 |
| Product line | Hazardous Duty® |
| Country of origin | United States of America |
| HTS / tariff code | 8501.53.8040 |
| Minimum order qty | 1 |
| Order multiple | 1 |
| Units per package | 1 |
| Catalog status | Active |