Marathon
Marathon U543 - 350 HP, Dripproof, Frame 447TS
Model: U543
Marathon U543 motor — 350 HP, 3-phase, 460 V, 3600 RPM, 447TS frame, ODP, 95.5% efficiency.
Technical Specifications
| Horsepower (HP) | 350 |
| Frame Size | 447TS |
| Enclosure | ODP |
| Full Load Speed (RPM) | 3600 |
| Voltage | 460 |
| Phase | 3 |
| Full Load Amps (A) | 377 |
| Weight (lbs) | 2046 |
| Category | Pump Motors |
| Electrical Type | AC Induction |
| Rotation | CW/CCW |
| Frequency | 60 |
| Efficiency (%) | 95.5 |
| Shaft Diameter | 3.375 |
| Shaft Diameter Source | NEMA MG-1 frame table |
| Mounting Type | Foot Mounted |
| Mounting Type Source | Marathon 2026 Catalog p.119 |
| Duty Type | General Purpose |
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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