Marathon Electric Close-Coupled Pump Motor, 20 & 15 HP, 3 Ph, 60 & 50 Hz, 230/460 & 190/380 V, 3600 & 3000 RPM, 256JM Frame, TEFC
Regular price
$3,508.00 USD
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Close-Coupled Pump Motor, 20 & 15 HP, 3 Ph, 60 & 50 Hz, 230/460 & 190/380 V, 3600 & 3000 RPM, 256JM Frame, TEFC
Features
- NEMA JM pump shaft dimensions
- Mechanically locked on shaft end
- Continuous duty
- Aluminum frame construction
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) | 3537 RPM |
| Speed (dual) | 3537 & 2955 RPM |
| Full-load current | 47.0/23.4 A |
| Current (dual) | 47/23.4 & 42/21 A |
| Nominal efficiency | 92.4% |
| Power factor | 86% |
| Service factor | 1.15 |
| Number of poles | 2 |
| Number of speeds | 1 |
| NEMA design | B |
| KVA code | G |
| Duty | Continuous |
| Electrical type | Squirrel Cage Induction Run |
| Starting method | Across The Line |
| Main winding resistance | .394 Ω |
| Frame & Mechanical | |
| Frame | 256JM |
| Frame size | 256 |
| Frame suffix | JM |
| Frame material | Aluminum |
| Frame length | 13.75 in |
| Enclosure | Totally Enclosed Fan Cooled |
| IP rating | IP43 |
| Insulation class | F |
| Mounting | RIGID |
| Assembly / conduit box | F1/F2 CAPABLE |
| Orientation | Horizontal |
| Rotation | Reversible |
| Max ambient | 40°C |
| Shaft & Bearings | |
| Shaft diameter | 1.250 in |
| Shaft extension | 5.25 in |
| Shaft type | JM |
| C dimension | 27.27 in |
| Drive-end bearing | 6309 |
| Drive-end bearing type | Ball |
| Opp. drive-end bearing | 6208 |
| Opp. drive-end bearing type | Ball |
| Overload protection | No Protection |
| Compliance & Certifications | |
| CE | Y |
| CSA | Y |
| UL | Recognized |
| Connection drawing | A-EE7308 |
| Outline drawing | B-SS321151-1375 |
| Dimensions & Weight | |
| Overall dimensions (L × W × H) | 30.75 × 21.75 × 18.00 in |
| Weight | 272.00 lb |
| Identification | |
| Manufacturer part / model | 256TTFL16004 |
| Catalog number | U351A |
| UPC | 722856054715 |
| Country of origin | United States of America |
| HTS / tariff code | 8501.52.8040 |
| Minimum order qty | 1 |
| Order multiple | 1 |
| Units per package | 1 |
| Catalog status | Active |