Find a Service Center
Marathon Electric Motors
284THEN8032
20 Hp 60 Hz 1800 rpm Explosion Proof Fan Cooled Three Phase Motor
Item #113091881
- 20 HP - Three Phase
- 60 Hz - 284TC Frame
- 230/460 V
- 1775 rpm
features
- BEI H38 explosion proof encoder 1024 ppr, Class I Groups C & D,Class II Groups E, F, G included
- MAX GUARD® Class F insulation system
- Constant torque operation from 0 to base speed on vector drive
- Constant Horsepower operation up to twice base RPM
- Continuous duty at 40°C ambient
- Optimized for operation with IGBT inverter (NEMA Design A)
- Normally closed thermostats (one per phase, Class F)
- Cast iron frame and brackets
- F1 standard, NOT field reversible to F2, Meets temperature code T3B
- Suitable for Group C
| Frame | 284TC |
| Duty | Continuous |
| Rotation | Reversible |
| HP | 20 |
| Mounting Type | Rigid Base |
| ODE Bearing Type | Ball |
| Frame Length | 12.75 in |
| KVA Code | M |
| Frame Material | Cast Iron |
| Shaft Type | T |
| IP Rating | IP54 |
| Starting Type | Inverter Only |
| NEMA Design | INV |
| ODE Bearing Size | 6311 |
| Insulation Class | F |
| Hazardous Location | DIV 1 EXP PROOF CL I GR CD CL II GR FG T3C |
| DE Bearing Type | Ball |
| No. of Speeds | 1 |
| Voltage | 230/460 V |
| Service Factor | 1 |
| Overload Protector | Thermostat |
| Speed [Max] | 1775 rpm |
| Hz | 60 |
| Motor Orientation | Horizontal |
| No. of Poles | 4 |
| Electrical Type | Squirrel Cage Inverter Duty |
| Resistance Main | 0.2 |
| No. of Phases | Three |
| Assembly/Box Mounting | F1 Only |
| Standard | UL Listed And CSA Certified |
| Power Factor | 76 |
| Amps | 53/26.5 |
| Shaft Diameter | 1.875 in |
| Efficiency | 93.6 |
| DE Bearing Size | 6311 |
| Enclosure | EPNV |
| Shaft Extension | 4.38 in |
| Ambient Temperature Range [Max] | 104 °F |
| Weight | 555.0 LB |
| EAN or UPC | 722856025616 |
