Description
1 hp 3 phase AC Induction Motor Features
- 1 horsepower 2 pole 1.25 service factor 143TC frame size AC electric motor
- 3 phase small AC general purpose asynchronous motor running at 60Hz 230/460V AC
- Has aluminum windings for conductivity and energy efficiency and has a operating speed of 3450 rpm
- Available with open drip proof (ODP) enclosure motor and totally enclosed fan cooled (TEFC) enclosure motor
- Double shielded bearings and Class F insulation
1 hp 3 phase AC Induction Motor Specification
| Basics | Model | ATORT12D11 | ATORT12T11 |
| Enclosure | ODP | TEFC | |
| Type | General Purpose Asynchronous Motor | ||
| Item Weight | 39 Ibs | ||
| Motor Length | 14.6 inch | ||
| Frame | 143TC Frame | ||
| Design | NEMA Design B | ||
| Certification | CE, UL | ||
| Motor Material | Roll Steel | ||
| Technical Parameters | Service Factor | 1.15 | 1.25 |
| Horsepower | 1 hp | ||
| Rated Frequency | 60 Hz | ||
| Phase | Three Phase | ||
| Pole | 2 pole | ||
| Voltage | 230/460V AC | ||
| Full Load Amps | 3.13/1.57A | ||
| Speed | 3450 RPM | ||
| Efficiency | 77% | ||
| 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 |
1 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 |
| 143TC | 5.6 | 2.75 | 7 | 6.18 | 0.16 | 6.5 | 14.6 | 3.5 | 2.75 | 4 | 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: Induction motor doesn’t revolve, why and how to do?
- The power source is not connected.
If the power source is not connected or bad contact, the motor will not revolve. At this moment, the electrician must inspect the switch, fuse, various contacts and connection wires. Thus, the fault will be gradually troubleshooting for maintenance. - The fuse is blown out when starting.
Find the reason for the fuse blown, troubleshoot the fault and then fit the proper fuse for the motor. - The setting current of the over-current relay is too low.
For this problem, just regulate higher properly. - The load is too large or the transmission mechanism blocks.
In this case, choose an induction motor with bigger capacity or relieve the load, and also check the condition of the transmission mechanism. - The stator or rotor winding is in open circuit.
Open the terminal box and check if the motor winding is broken (leads breakage) with the Ohm gear of the multi-meter. If any open circuit occurs, the resistance value might be abnormal. It is required to open the motor to make further inspection and connect the breakage point.
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