Marathon Electric Explosion Proof Motor, 20 & 15 HP, 3 Ph, 60 & 50 Hz, 230/460 & 190/380 V, 1800 & 1500 RPM, 256TC Frame, EPFC
Regular price
$4,358.00 USD
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Explosion Proof Motor, 20 & 15 HP, 3 Ph, 60 & 50 Hz, 230/460 & 190/380 V, 1800 & 1500 RPM, 256TC Frame, EPFC
Features
- Frame Construction:56 Frame-Rolled Steel.143-256TC-Cast Iron “Blue Chip”
- Thermal Protection:56 Frame-Auto Overload,143-256TC-T-Stats
- Class/Group:56 Frame-Class I, Groups C & D,143-256TC-Class I, Group D
- Temperature Code:56 Frame-T3B;143-256TC-T3B
- Conduit Box:56 Frame-Shipped Loose;143-256TC-Installed
- Service Factor:56 Frame-1.0 (unless otherwise noted);143-256TC-1.0 (unless otherwise noted)
- Suitable for Group C
- Rated 60/50 hertz, 190/380 or 380 volt at next lower horsepower
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) | 1775 RPM |
| Speed (dual) | 1775 & 1470 RPM |
| Full-load current | 48.0/24.1 A |
| Current (dual) | 48/24.1 & 44/22 A |
| Nominal efficiency | 93% |
| Power factor | 84% |
| Service factor | 1 |
| 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 | .474 Ω |
| Frame & Mechanical | |
| Frame | 256TC |
| Frame size | 256 |
| Frame suffix | TC |
| Frame material | Cast Iron |
| Frame length | 12.25 in |
| Enclosure | Explosion Proof Fan cooled |
| IP rating | IP54 |
| Insulation class | F |
| Mounting | Round |
| Assembly / conduit box | F1 ONLY |
| Orientation | Horizontal |
| Rotation | Reversible |
| Max ambient | 40°C |
| Shaft & Bearings | |
| Shaft diameter | 1.625 in |
| Shaft extension | 3.75 in |
| Shaft type | T |
| C dimension | 25.77 in |
| 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 | EXP PROOF CL I GR C&D CL II GR F&G T3B |
| Connection drawing | A-EE7308T |
| Outline drawing | B-SS207446-1225 |
| Dimensions & Weight | |
| Overall dimensions (L × W × H) | 30.75 × 21.75 × 18.00 in |
| Weight | 441.00 lb |
| Identification | |
| Manufacturer part / model | 256TTGN16034 |
| Catalog number | C328B |
| UPC | 722856050786 |
| Product line | Hazardous Duty® |
| Country of origin | United States of America |
| HTS / tariff code | 8501.52.4000 |
| Minimum order qty | 1 |
| Order multiple | 1 |
| Units per package | 1 |
| Catalog status | Active |