Dayton 31TT04 Capacitor-Start/Run Motor 1 hp 115/208-230V 3450 RPM 56 Frame
- Closed Base
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Three-phase general-purpose motor delivers 1-1/2 HP at 3,500 RPM in a 56C frame with 208-230/460V operation
This Baldor-Reliance motor delivers 1 1/2 horsepower in a 56C frame for continuous-duty industrial and marine use. It runs on 208-230/460 V AC at 60 Hz with a nameplate speed of 3 500 RPM and a 1.15 service factor.
At 460 V the motor draws 1.90 full-load amps and at 208-230 V it draws 4.0-3.8 amps, so it handles steady loads up to its rated output with margin from the service factor. It is usable at 208 V but not at 200 V, and the maximum ambient temperature is 40 degrees C.
The totally enclosed fan-cooled enclosure and NEMA Design B construction suit horizontal face-mount installations with clockwise or counter-clockwise rotation. Insulation class F supports the continuous duty cycle, though no thermal protection is fitted so external overload provision is required.
| Product | |
|---|---|
| Brand name | BALDOR ELECTRIC |
The 56C frame and face mounting match the NEMA standard, so the bolt pattern and shaft dimensions line up with legacy 56C equipment. The 1 1/2 HP output at 3,500 RPM and 1.15 service factor provide the same nameplate power with a margin for occasional overload.
Measure each phase current with a clamp meter; balanced readings near 3.8 A at full load show the windings are healthy. The motor should spin at 3,500 RPM with low vibration and the external fan moving air steadily across the totally enclosed housing.
The motor is supplied as a face-mount unit with the 56C flange integral to the frame; no separate rigid base is included. You will need to provide mounting bolts, a coupling or pulley for the keyed shaft, and three-phase supply wiring rated for 208–230/460 V operation.
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