Marathon
Marathon Y385 - 20/5 HP, TEFC, Frame 284T
Model: Y385
Marathon Y385 motor — 20/5 HP, 3-phase, 460 V, 1800/900 RPM, 284T frame, TEFC, 91.7% efficiency, Cooling Tower Two-Speed One-Winding Variable Torque (Blue Chip Severe Duty XRI) line.
Technical Specifications
| Horsepower (HP) | 20/5 |
| Frame Size | 284T |
| Enclosure | TEFC |
| Full Load Speed (RPM) | 1800/900 |
| Voltage | 460 |
| Phase | 3 |
| Electrical Type | AC Induction |
| Efficiency (%) | 91.7 |
| Full Load Amps (A) | 24.0/8.5 |
| Weight (lbs) | 489 |
| Duty Type | Severe Duty |
| Shaft Diameter | 1.875 |
| Shaft Diameter Source | NEMA MG-1 frame table |
| Catalog Line | Cooling Tower Two-Speed One-Winding Variable Torque (Blue Chip Severe Duty XRI) |
Manufacturer
Marathon
A Regal Rexnord brand manufacturing industrial-grade electric motors. Known for Blue Chip XRI, Black Max, and severe duty product lines.
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