Description
Motor designed specifically for Inverter Operation, allowing its use in applications where 1000:1 constant torque turndown ratio is required.
| Standard | NEMA MG-1 |
|---|---|
| Frequency | 60 Hz |
| Voltage | 230/460 V |
| Number of poles | 4 |
| Degree of Protection | IP55 |
| Synchronous speed | 1800 rpm |
| Output rating | 20 HP |
| Mounting | F-1 |
| Flange | C |
| Terminal box¹ | Left position |
| Enclosure | IC410 - TENV |
Electric Motors
| Frame | 254/6TC |
|---|---|
| Output | 20 HP (15 kW) |
| Number of Poles | 4 |
| Frequency | 60 Hz |
| Rated speed | 1775 rpm |
| Slip | 1.39 % |
| Rated voltage | 230/460 V |
| Rated current | 53.3/26.6 A |
| L. R. Amperes | 458/229 A |
| LRC | 8.6x(Code L) |
| No load current | 29.5/14.8 A |
| Rated torque | 59.2 ft.lb |
| Locked rotor torque | 360 % |
| Breakdown torque | 430 % |
| Locked rotor time | 27s (cold) 15s (hot) |
| Moment of inertia (J) | 4.28 sq.ft.lb |
| Design | A |
| Insulation Class | H |
| Service factor | 1.00 |
| Temperature rise | 105 K |
| Duty Cycle | Cont.(S1) |
| Starting Method | VFD |
| Ambient temperature | -20°C to +40°C |
| Altitude | 1000 m.a.s.l. |
| Degree of Protection | IP55 |
| Enclosure | IC410 - TENV |
| Mounting | F-1 |
| Rotation¹ | Both (CW and CCW) |
| Approx. weight³ | 366 lb |
Efficiency
| 50% | 91.8 |
|---|---|
| 75% | 93.0 |
| 100% | 93.0 |
Power factor
| 50% | 0.55 |
|---|---|
| 75% | 0.69 |
| 100% | 0.76 |
Features
| Frame Material | Cast Iron |
|---|---|
| Impregnation Method | Dip and Bake Polyester |
| Regreasing System | At Drive end and Non-drive end |
| Main terminal box hole | NPT 1 1/2" |
| Terminal Block | Without |
| Shaft Locking Device | Without |
| Drain | Rubber, automatic |
| Shaft Material | SAE 1040/45 Carbon Steel |
| Painting | RAL 5009 203A (ISO 12944 - C2) |
| Grounding Lugs | Single |
| Fan Cover material | Without Fan Cover |
| Tropicalized Painting | Without |
| Fan material | Without fan |
| Bearing cap | Yes- Bearing Cap |
| Winding thermal protection | Thermostat - 2 wires 1 per phase 155°C |
| Balancing Method | 1/2 Key |
| Drip Cover | Without |
| Overload protector (phenolic) | Without overload protector |
| Connection Cables Quantity | 9 |
Features
| Frame Material | Cast Iron |
|---|---|
| Impregnation Method | Dip and Bake Polyester |
| Regreasing System | At Drive end and Non-drive end |
| Main terminal box hole | NPT 1 1/2" |
| Terminal Block | Without |
| Shaft Locking Device | Without |
| Drain | Rubber, automatic |
| Shaft Material | SAE 1040/45 Carbon Steel |
| Painting | RAL 5009 203A (ISO 12944 - C2) |
| Grounding Lugs | Single |
| Fan Cover material | Without Fan Cover |
| Tropicalized Painting | Without |
| Fan material | Without fan |
| Bearing cap | Yes- Bearing Cap |
| Winding thermal protection | Thermostat - 2 wires 1 per phase 155°C |
| Balancing Method | 1/2 Key |
| Drip Cover | Without |
| Overload protector (phenolic) | Without overload protector |
| Connection Cables Quantity | 9 |
