MARATHON ELECTRIC R503
MARATHON ELECTRIC
MARATHON ELECTRIC R503
R503 PART NUMBER
250MTFC6501 IEC Frame Motors - 3 ph, 56.0 kW, 3600 rpm, 230/460 V, 250M Frame, TEFC (Totally Enclosed Fan Cooled) Enclosure, 60 Hz
QTY QUOTEMARATHON ELECTRIC - MARATHON ELECTRIC R503
Meets IE3 European and NEMA Premium® efficiencies
Aluminum (63-90 frame) or Cast Iron (100-315 frame) frame construction
Nameplated 60/50 hertz at same HP, above 90 frame is 60/50 Hz at next lower HP
MAX GUARD® Class F Insulation, Class B rise @ rated KW
IP55 weatherproof enclosure, Rotatable/Removable Base (63-90 frame)
Wye Start-Delta Run on 160 Frame and larger
10:1 Variable Torque, Constant Torque speed range as noted
Top Mounted/Oversized gasketed terminal box
Meets IEEE45, IEC60092 & USCG CFR46 Marine Duty (63-90 frame “Below Deck”)
1.15 Service Factor on 60 Hz sine wave, 1.0 SF or VFD, IEC Design “N” with NEMA “B” Torques
SPECIFICATIONS
| Motor Phase | 3 ph |
|---|---|
| Volts @ Frequency | 230/460 @ 60 V, Hz |
| Kw | 56 kW |
| Shaft Type | IEC |
| Synchronous Rpm | 3600 rpm |
| Shaft Diameter | 2.56 in |
| Motor Supply Voltage | 230/460 V |
| Shaft Rotation | Reversible |
| Frame Size | 250M |
| Overall Length (C-Dimension) | 36.45 in |
| Enclosure Type | TEFC (Totally Enclosed Fan Cooled) |
| Bearing Type | Ball |
| Frequency Rating | 60 Hz |
| Drive End Bearing Size | 6313 |
| Duty / Condition Type | Continous Duty |
| Opposite Drive End Bearing Size | 6313 |
| Assembly/Box Mounting | F3 |
| Opposite Drive End Bearing Type | Ball |
| Mounting Type | Rigid Base |
| Nema Design Class | B |
| Base Rpm | 3570 rpm |
| Service Factor | 1.15 |
| Starting Method | Part Wdg Start & Wye Start Delta Run Or Inverter |
| Frame Material | Cast Iron |
| Ambient Temperature Range | 40 °C |
| Insulation Class | F |
| Electrical Type | Squirrel Cage Inverter Rated |
| Ip Rating | 55 |
| Kva Code | G |
| Standards Met | CE,UL Recognized |
| Thermal Protection | None |
| Manufacturer Product Page | https://www.regalbeloit.com/api/sitecore/Product/GeneratePack?model=250MTFC6501 |
| Motor Poles | 2-pole |
| Manufacturer Upc Number | 722856026965 |
| Full Load Efficiency | 0.936 |
| 2D Drawing | https://ids.regalbeloit.com/drawingsearchcomponent/drawing.do?invoke=viewDrawingSearchResults&drawingNo=SS622378&displayType=pdf&rules=on&[email protected]&[email protected]&model=250MTFC6501 |
| Motor Orientation | Horizontal |
| Wiring Diagram | https://ids.regalbeloit.com/drawingsearchcomponent/drawing.do?invoke=viewDrawingSearchResults&drawingNo=00417203ME&displayType=pdf&rules=on&[email protected]&[email protected]&model=250MTFC6501 |
