Marathon Electric Explosion Proof Motor, 20 & 15 HP, 3 Ph, 60 & 50 Hz, 230/460 & 190/380 V, 3600 & 3000 RPM, 256T Frame, EPFC
Regular price
$4,310.00 USD
Same day shipping available on in stock items if ordered before 4pm EST. Expedited shipping available for in stock items. Please e-mail Sales@MRO-PT.com for expedited shipping.
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Explosion Proof Motor, 20 & 15 HP, 3 Ph, 60 & 50 Hz, 230/460 & 190/380 V, 3600 & 3000 RPM, 256T Frame, EPFC
Features
- Meets NEMA Premium® efficiency; Hazardous Duty®, 100% cast iron construction for rigidity and reduced vibration; Internal and external epoxy paint
- Nameplated 60/50 Hz, 190/380 Volts, at next lower HP
- MAX GUARD® Class F insulation system, 40C Max Ambient, 1.0SF on Inverter Power and 1.15SF on Sine Wave Power
- Inverter Duty 10:1 Variable Torque and 10:1 Constant Torque
- Precision balanced to .08”/sec, Extended grease tubes
- Normally closed thermostats (must be connected to control circuit)
- Division 1 Explosion Proof Class 1 Groups C&D Class II, Groups F & G, Groups F & G Meets temperature code T3B
- Shaft slinger, Ball Bearings (except as noted), Modifications and Accessories are available
- UL® Listed & CSA certified and CE® Mark
Specifications
| Performance & Electrical | |
| Power | 20 HP |
| Power (dual rating) | 20 & 15 HP |
| Power | 14.9 kW |
| Voltage | 230/460 V |
| Phase | 3 |
| Frequency | 60 Hz |
| Speed (max) | 3540 RPM |
| Speed (dual) | 3540 & 2945 RPM |
| Full-load current | 47.5/23.7 A |
| Current (dual) | 47.5/23.7 & 43.5/21.7 A |
| Nominal efficiency | 91% |
| Power factor | 87.5% |
| Service factor | 1 |
| Number of poles | 2 |
| 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 | .546 Ω |
| Frame & Mechanical | |
| Frame | 256T |
| Frame size | 256 |
| Frame suffix | T |
| Frame material | Cast Iron |
| Enclosure | Explosion Proof Fan cooled |
| IP rating | IP54 |
| Insulation class | F |
| Mounting | Rigid Base |
| Assembly / conduit box | F1 ONLY |
| Orientation | Horizontal |
| Rotation | Reversible |
| Max ambient | 50°C |
| Shaft & Bearings | |
| Shaft diameter | 1.625 in |
| Shaft type | T |
| Drive-end bearing | 6309 |
| Drive-end bearing type | Ball |
| Opp. drive-end bearing | 6210 |
| Opp. drive-end bearing type | Ball |
| Overload protection | Thermostat |
| Compliance & Certifications | |
| CE | N |
| CSA | Y |
| UL | UL Listed And CSA Certified |
| Hazardous location | DIV 1 EXP PROOF CL I GR CD CL II GR FG T3C |
| Connection drawing | EE7308AD |
| Outline drawing | SS203001-1225 |
| Dimensions & Weight | |
| Overall dimensions (L × W × H) | 32.00 × 25.00 × 20.00 in |
| Weight | 369.00 lb |
| Identification | |
| Manufacturer part / model | 256TTGCD6501 |
| Catalog number | E505A |
| UPC | 722856213976 |
| Product line | Hazardous Duty® |
| Country of origin | Mexico |
| Substitute part | 256TTGN16509 |
| Minimum order qty | 1 |
| Order multiple | 1 |
| Units per package | 1 |
| Catalog status | Active |