Description
With cast iron frame, flexible mounting, solid and whole feet, and lower noise levels and operating temperatures, the W22 motors are perfectly suitable for a great variety of industrial applications.
| Standard | NEMA MG-1 |
|---|---|
| Frequency | 60//50 Hz |
| Voltage | 208-230/460//380 V |
| Number of poles | 4 |
| Degree of Protection | IP55 |
| Synchronous speed | 1800 rpm |
| Output rating | 15 HP |
| Mounting | F-1 |
| Flange | Without |
| Terminal box¹ | Left position |
| Enclosure | IC410 - TEAO |
Electric Motors
| Frame | 256TZ |
|---|---|
| Output | 15 HP (11 kW) |
| Number of Poles | 4 |
| Frequency | 60 Hz |
| Rated speed | 1768 rpm |
| Slip | 1.78 % |
| Rated voltage | 208-230/460 V |
| Rated current | 39.8-36.0/18.0 A |
| L. R. Amperes | 255-230/115 A |
| LRC | 6.4x(Code G) |
| No load current | 11.7-14.0/7.00 A |
| Rated torque | 44.6 ft.lb |
| Locked rotor torque | 240 % |
| Breakdown torque | 260 % |
| Locked rotor time | 30s (cold) 17s (hot) |
| Moment of inertia (J) | 2.62 sq.ft.lb |
| Design | B |
| Insulation Class | F |
| Service factor | 1.25 |
| 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 | IC410 - TEAO |
| Mounting | F-1 |
| Rotation¹ | Both (CW and CCW) |
| Approx. weight³ | 298 lb |
Efficiency
| 50% | 91.0 |
|---|---|
| 75% | 91.7 |
| 100% | 92.4 |
Power factor
| 50% | 0.68 |
|---|---|
| 75% | 0.78 |
| 100% | 0.83 |
Electric Motors
| Frame | 256TZ |
|---|---|
| Output | 15 HP (11 kW) |
| Number of Poles | 4 |
| Frequency | 50 Hz |
| Rated speed | 1455 rpm |
| Slip | 3.00 % |
| Rated voltage | 380 V |
| Rated current | 21.5 A |
| L. R. Amperes | 105 A |
| LRC | 4.9x(Code E) |
| No load current | 7.10 A |
| Rated torque | 54.1 ft.lb |
| Locked rotor torque | 160 % |
| Breakdown torque | 200 % |
| Locked rotor time | 27s (cold) 15s (hot) |
| Moment of inertia (J) | 2.62 sq.ft.lb |
| Design | B |
| Insulation Class | F |
| Service factor | 1.00 |
| 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 | IC410 - TEAO |
| Mounting | F-1 |
| Rotation¹ | Both (CW and CCW) |
| Approx. weight³ | 298 lb |
Efficiency
| 50% | 91.0 |
|---|---|
| 75% | 90.2 |
| 100% | 90.2 |
Power factor
| 50% | 0.74 |
|---|---|
| 75% | 0.82 |
| 100% | 0.86 |
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 1/4" |
| 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 |
| Balancing Method | 1/2 Key |
| Drip Cover | Without |
| Overload protector (phenolic) | Without overload protector |
| Connection Cables Quantity | 12 |
