Description
This 2 horsepower AC electric motor is 3 phase, 60Hz, 230/460V asynchronous motor for general purpose applications such as air compressors. It has 145TC rolled stell frame construction for strength and durability, and NEMA B design which providing low starting current and high locked rotor torque.
2 hp 3 phase AC Induction Motor Specification
| Basics | Model | ATORT222D11 | ATORT22T11 |
| Enclosure | ODP | TEFC | |
| Type | General Purpose Asynchronous Motor | ||
| Item Weight | 55 Ibs | ||
| Motor Length | 14.6 inch | ||
| Frame | 145TC Frame | ||
| Design | NEMA Design B | ||
| Certification | CE, UL | ||
| Motor Material | Roll Steel | ||
| Technical Parameters | Service Factor | 1.15 | 1.25 |
| Horsepower | 2 hp | ||
| Rated Frequency | 60 Hz | ||
| Phase | Three Phase | ||
| Pole | 2 pole | ||
| Voltage | 230/460V AC | ||
| Full Load Amps | 5.31/2.65A | ||
| Speed | 3450 RPM | ||
| Efficiency | 85.5% | ||
| Duty | Continuous | ||
| Isulation Class | Class F | ||
| Protection Class | IP54/ IP55 | ||
| Mounting Method | C Face, Footed | ||
| Environment | Ambient temperature | -15℃≤θ≤40℃ | |
| Altitude | Altitude should be lower than 1000 meters above sea level |
2 hp 3 phase AC Induction Motor Dimension
Unit: inch
| Frame Size |
AB | BA | Max A |
Max B |
Max BB |
Max BD |
C | D | E | 2F | H | N-W | O | P | R | S | U | Min ES |
Min AA |
AH | BF | BC | AJ | AK | Min V |
| 145TC | 5.6 | 2.75 | 7 | 6.18 | 0.16 | 6.5 | 14.6 | 3.5 | 2.75 | 5 | 0.34 | 2.25 | 6.7 | 7.08 | 0.771 | 0.188 | 0.875 | 1.41 | 3/4 | 2.12 | 1/2-13 | +0.12 | 5.875 | 4.5 | 2 |
NEMA AC Induction Motor Connection Diagram
Details
Tips: The AC induction motor bearing is overheating, why and how to do?
- The match between bearing and shaft is too loose or too tight.
This situation will result in redundant friction, thus leading to the temperature rise of the motor bearing. The loose spindle can be inlayed with the bushing. If it is too tight, it is required to reprocess the spindle to the standard size. - The bearing and end bell coordination is too loose or too tight.
If it is too loose, the end bell can be inlayed with the bushing; if it is too tight, it is required to reprocess into the standard size. - The lubricating oil of the bearing is too much or too little, or the oil quality is not good.
Place certain lubricating oil or exchange the lubricating oil. - The bearing has been damaged.
Exchange the bearing.
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