Electric Motors
| Frame | C56 |
|---|---|
| Output | 0.33 HP (0.25 kW) |
| Number of Poles | 4 |
| Frequency | 60 Hz |
| Rated speed | 1740 rpm |
| Slip | 3.33 % |
| Rated voltage | 277 V |
| Rated current | 2.58 A |
| L. R. Amperes | 13.4 A |
| LRC | 5.2x(Code N) |
| No load current | 2.10 A |
| Rated torque | 0.996 ft.lb |
| Locked rotor torque | 360 % |
| Breakdown torque | 300 % |
| Locked rotor time | 10s (cold) 6s (hot) |
|---|---|
| Moment of inertia (J) | 0.0403 sq.ft.lb |
| Insulation Class | B |
| Service factor | 1.35 |
| Temperature rise | 80 K |
| 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 | IP21 |
| Enclosure | IC01 - ODP |
| Mounting | F-1 |
| Rotation¹ | Both (CW and CCW) |
| Approx. weight³ | 21.4 lb |
(1) Looking the motor from the shaft end.; (3) Approximate weight, subject to be changed after manufacturing process.; (4) At 100% of full load.
Efficiency
| 50% | 75% | 100% |
|---|---|---|
| 44.5 | 53.0 | 57.2 |
Power factor
| 50% | 75% | 100% |
|---|---|---|
| 0.44 | 0.52 | 0.60 |
Features
| Frame Material | Rolled Steel |
|---|---|
| Impregnation Method | Dip and Bake Polyester |
| Shaft Material | SAE 1040/45 Carbon Steel |
| Painting | RAL 7022 207N (ISO 12944 - C2) |
| Grounding Lugs | Single |
| Tropicalized Painting | Without |
| Fan material | Plastic |
| Bearing cap | No-Without Bearing Cap |
| Drip Cover | Without |
| Resilient Base | Without |
| Overload protector (phenolic) | Automatic |
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