300 hp, 1800 rpm, 3 ph, 460 V, 449T Frame, TEBC (Totally Enclosed Blower Cooled) Enclosure, 60 Hz, Rigid Base Mount, Continuous Duty Mfr description 300HP 1800RPM Y532 TEBC-AXIAL 460V MAX GUARD® Class H insulation system Constant torque operation from 0 to base speed on vector drive, including TEFC (On Volts/Hertz drives, TEFC motors are limited to 20:1 constant torque Constant HP operation to twice base speed (143-256 frame);1.5 times base (all others) Optimized for operation with IGBT inverter (NEMA Design A) Normally closed thermostats (one per phase, class F) Blue Chip quality, cast iron frame and brackets Patented “fracket” design (TEBC enclosure) Separate power supply required for blower motor
| Power | 300 hp |
|---|---|
| Rated Speed | 1,800 rpm |
| Frame Size | 449T |
| Voltage | 460 V |
| Mounting Type  | Rigid Base |
| Motor Enclosure Type | Totally Enclosed Blower Cooled |
| Electrical Phase | Three-Phase |
| Frequency | 60 Hz |
| Shaft Diameter | 3‑3/8″ |
| motor category | Inverter Duty Motor |
| motor phase | 3 ph |
| motor horsepower | 300 hp |
| synchronous rpm | 1800 rpm |
| motor supply voltage | 460 V |
| enclosure type | TEBC (Totally Enclosed Blower Cooled) |
| frequency rating | 60 Hz |
| duty condition type | Continuous Duty |
| mounting type | Rigid Base |
| thermal protection | Thermostats (N/C) |
| full load current | 327.0 A |
| full load efficiency | 95.4 % |
| ambient temperature range | 40 °C |
| motor poles | 4 |
| description keyword | 300 hp |
| overall length c dimension | 64.34 in |
| type of bearing | Ball |
| nema design class | INV |
| service factor | 1.00 |
| frame material | Cast Iron |
| insulation class | H |
| ip rating | 43 |
| standards met | CE, CSA |
| weight | 2,950 lbs |
| manufacturer product page | https://www.regalrexnord.com/products/motors/low-voltage-nema-motors/variable-speed-motors/vector-inverter-duty-motors/2000-1-with-encoder-provision-motors/300-hp-variable-speed-motor-3-phase-1800-rpm-460-v-449t-frame-tebc-axial-449thfs8047 |
| manufacturer upc number | 722856025456 |
| operation manual | https://media.regalbeloit.com/images/d120001/medias/docus/4097/Marathon-Manual.pdf |
| technical specifications | 300 HP, Variable Speed Motor, 3 phase, 1800 RPM, 460 V,449T Frame, TEBC - Axial |
| manufacturer catalog number | Y532 |
| 2d drawing | https://ids.regalbeloit.com/drawingsearchcomponent/drawing.do?invoke=viewDrawingSearchResults&drawingNo=B-SS555990-2875&displayType=pdf&rules=on&requestEmail=engineering.rfs@[email protected]&model=449THFS8047 |
| wiring diagram | https://ids.regalbeloit.com/drawingsearchcomponent/drawing.do?invoke=viewDrawingSearchResults&drawingNo=A-EE7300T&displayType=pdf&rules=on&requestEmail=engineering.rfs@[email protected]&model=449THFS8047 |
| product type | Inverter Vector Duty Motors |
| Unidad | piece |
| Cantidad mínima | 1 |
| Incremento de cantidad | 1 |
| Fabricante | MARATHON ELECTRIC |
| Vendor SKU | 04740471 |