Description
| Standard | NEMA MG-1 |
|---|---|
| Frequency | 60//50 Hz |
| Voltage | 230/460//190-220/380-415 V |
| Number of poles | 4 |
| Degree of Protection | IP55 |
| Synchronous speed | 1800 rpm |
| Output rating | 20 HP |
| Mounting | F-1 |
| Flange | Without |
| Terminal box¹ | Left position |
| Enclosure | IC411 - TEFC |
Electric Motors
| Frame | 254/6T |
|---|---|
| Output | 20 HP (15 kW) |
| Number of Poles | 4 |
| Frequency | 60 Hz |
| Rated speed | 1765 rpm |
| Slip | 1.94 % |
| Rated voltage | 230/460 V |
| Rated current | 49.4/24.7 A |
| L. R. Amperes | 331/165 A |
| LRC | 6.7x(Code H) |
| No load current | 22.2/11.1 A |
| Rated torque | 59.5 ft.lb |
| Locked rotor torque | 270 % |
| Breakdown torque | 300 % |
| Locked rotor time | 28s (cold) 16s (hot) |
| Moment of inertia (J) | 2.64 sq.ft.lb |
| Design | B |
| Insulation Class | F |
| 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 | IP55 |
| Enclosure | IC411 - TEFC |
| Mounting | F-1 |
| Rotation¹ | Both (CW and CCW) |
| Noise level² | 68.0 dB(A) |
| Approx. weight³ | 242 lb |
Efficiency
| 50% | 91.7 |
|---|---|
| 75% | 92.4 |
| 100% | 93.0 |
Power factor
| 50% | 0.66 |
|---|---|
| 75% | 0.77 |
| 100% | 0.82 |
Features
| Frame Material | Rolled Steel |
|---|---|
| Impregnation Method | Dip and Bake Polyester |
| Regreasing System | At Drive end and Non-drive end |
| Main terminal box hole | 1.732" |
| Terminal Block | Without |
| Drain | Rubber, automatic |
| Shaft Material | SAE 1040/45 Carbon Steel |
| Painting | Munsell N 1 - Matte 207N (ISO 12944 - C2) |
| Grounding Lugs | Superior |
| Fan Cover material | Steel |
| Tropicalized Painting | Without |
| Fan material | Plastic |
| Bearing cap | No-Without Bearing Cap |
| Bolt Material | Carbon Steel |
| Balancing Method | 1/2 Key |
| Drip Cover | Without |
| Resilient Base | Without |
| Overload protector (phenolic) | Without overload protector |
| Connection Cables Quantity | 12 |
Features
| Frame Material | Rolled Steel |
|---|---|
| Impregnation Method | Dip and Bake Polyester |
| Regreasing System | At Drive end and Non-drive end |
| Main terminal box hole | 1.732" |
| Terminal Block | Without |
| Drain | Rubber, automatic |
| Shaft Material | SAE 1040/45 Carbon Steel |
| Painting | Munsell N 1 - Matte 207N (ISO 12944 - C2) |
| Grounding Lugs | Superior |
| Fan Cover material | Steel |
| Tropicalized Painting | Without |
| Fan material | Plastic |
| Bearing cap | No-Without Bearing Cap |
| Bolt Material | Carbon Steel |
| Balancing Method | 1/2 Key |
| Drip Cover | Without |
| Resilient Base | Without |
| Overload protector (phenolic) | Without overload protector |
| Connection Cables Quantity | 12 |
