Marathon
Marathon U552 - 25 HP, Dripproof, Frame 284T
Model: U552
Marathon U552 motor — 25 HP, 3-phase, 230/460 V, 1800 RPM, 284T frame, ODP, 91.7% efficiency, 1.15 SF.
Technical Specifications
| Horsepower (HP) | 25 |
| Frame Size | 284T |
| Enclosure | ODP |
| Full Load Speed (RPM) | 1800 |
| Voltage | 230/460 |
| Phase | 3 |
| Full Load Amps (A) | 61.0/30.5 |
| Weight (lbs) | 378 |
| Category | Pump Motors |
| Electrical Type | AC Induction |
| Rotation | CW/CCW |
| Frequency | 60 |
| Efficiency (%) | 91.7 |
| Service Factor | 1.15 |
| Duty Type | Pump |
| Shaft Diameter | 1.875 |
| Shaft Diameter Source | NEMA MG-1 frame table |
| Mounting Type | Foot Mounted |
| Mounting Type Source | Marathon 2026 Catalog p.118 |
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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