Electric Motors
| Frame | W56 |
|---|---|
| Output | 0.33 HP (0.25 kW) |
| Number of Poles | 2 |
| Frequency | 60 Hz |
| Rated speed | 3490 rpm |
| Slip | 3.06 % |
| Rated voltage | 115/208-230 V |
| Rated current | 5.20/2.87-2.60 A |
| L. R. Amperes | 36.4/20.1-18.2 A |
| LRC | 7.0x(Code P) |
| No load current | 3.80/1.64-1.90 A |
| Rated torque | 0.490 ft.lb |
| Locked rotor torque | 290 % |
| Breakdown torque | 290 % |
| Locked rotor time | 14s (cold) 8s (hot) |
| Moment of inertia (J) | 0.0190 sq.ft.lb |
|---|---|
| Design | N |
| Insulation Class | F |
| Temperature rise | 80 K |
| Service factor | 1.15 (1.00 @ 208V) |
| Duty Cycle | Cont.(S1) |
| Starting Method | Direct On Line |
| Ambient temperature | -20°C to +40°C |
| Altitude | 1000 m.a.s.l. |
| Degree of Protection | IP55 |
| Enclosure | IC411 - TEFC |
| Mounting | F-1 |
| Rotation¹ | Both (CW and CCW) |
| Noise level² | 66.0 dB(A) |
| Approx. weight³ | 19.3 lb |
(1) Looking the motor from the shaft end.; (2) Measured at 1m and with tolerance of +3dB(A).; (3) Approximate weight, subject to be changed after manufacturing process.; (4) At 100% of full load.
Efficiency
| 50% | 75% | 100% |
|---|---|---|
| 42.0 | 50.0 | 54.0 |
Power factor
| 50% | 75% | 100% |
|---|---|---|
| 0.61 | 0.69 | 0.76 |
Features
| Frame Material | Rolled Steel |
|---|---|
| Impregnation Method | Dip and Bake Polyester |
| Main terminal box hole | 0.881" |
| Terminal Block | Without |
| Drain | Rubber, automatic |
| Shaft Material | SAE 1040/45 Carbon Steel |
| Painting | Only primer |
| Grounding Lugs | Single |
| Fan Cover material | Plastic |
| Tropicalized Painting | Without |
| Fan material | Plastic |
| Bearing cap | No-Without Bearing Cap |
| Bolt Material | Carbon Steel |
| Balancing Method | Not Balanced |
| Drip Cover | Without |
| Resilient Base | Without |
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