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Three Phase totally enclosed fan cooled (TEFC) AC Motor Unimount 125©
Energy and Premium Efficiency Types FUT, UTE
- 1.25 Service Factor
- 1/4 through 30 horsepower
- 3600, 1800, 1200 rpm
- 200, 208-230/460 & 575 volt
- Removable Base
Product Overview
U.S. Motors' Unimount 125® is a totally enclosed fan cooled motor
with a 1.25 service factor. These TEFC motors meet the standard NEMA
requirements including 40 C ambient conditions, Class F insulation (with the
added feature of B temperature rise), NEMA Design B and are usable up to 3,300
feet above sea level.
The Unimount has an aluminum alloy extruded motor frame that improves heat dissipation for cool operation and long life (180 frame and larger). Die cast aluminum brackets have steel or cast iron inserts to ensure reliable performance under severe load applications. The 56 and 140 frame designs are rolled steel.
Unimount motors offer the widest range of electrical and mechanical features of any motor on the market today. They contain oversized ball bearings with locked shaft construction and the diagonally split conduit box is oversized compared to NEMA standards. Other mechanical features include a rugged motor base which is removable and allows conversion to a footless configuration. A canopy cap kit is provided for vertical mounting and Shur-Stop brake kits are available from 1-1/2 to 35 ft. lbs. In addition, C-face and D flange kits are available - and there is no need to pull the output bearing!
All copper windings and low loss stator laminations provide maximum efficiency. The Unimount motor is offered in both energy efficient type FUT and the premium efficient type UTE. This allows you to choose the level of motor efficiency that best suits the needs of your application - PLUS, both efficiency levels meet the 1997 federally legislated efficiency levels - so no need to worry about being in compliance with the law.
| Unimount 125 |
Temperature Rise Comparison
Industry Rule of Thumb:
Each 10°C reduction in motor temperature doubles the expected life of motor
windings.
TOTAL WINDING TEMPERATURE
| 1.0 SF Load | 1.15 SF Load | 1.25 SF Load | |
| Unimount 125 | A (100°C) | B (100°C) | C (155°C) |
| Most competitive Motors | B (130°C) | C (135°C) | Not available |
| Most competitive Motors w/ "B" insulation |
D (130°C) |
Result - Locating points A through D on the following graph, you can see that the Unimount offers incredible improvement in winding life due to U-frame type of temperature rise while offering a full Class F insulation system.
Applications
Unimount 125 motors offer the widest range of application possibilities of any
motor on the market today.