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 Hz |
| Voltage | 460//380-415 V |
| Number of poles | 8 |
| Degree of Protection | IP55 |
| Synchronous speed | 900 rpm |
| Output rating | 50 HP |
| Mounting | B3L(E) |
| Flange | Without |
| Terminal box¹ | Right position |
| Enclosure | IC411 - TEFC |
Electric Motors
| Frame | 280S/M |
|---|---|
| Output | 50 HP (37 kW) |
| Number of Poles | 8 |
| Frequency | 60 Hz |
| Rated speed | 893 rpm |
| Slip | 0.78 % |
| Rated voltage | 460 V |
| Rated current | 65.3 A |
| L. R. Amperes | 438 A |
| LRC | 6.7 |
| No load current | 31.5 A |
| Rated torque | 294 ft.lb |
| Locked rotor torque | 200 % |
| Breakdown torque | 260 % |
| Locked rotor time | 90s (cold) 50s (hot) |
| Moment of inertia (J) | 66.9 sq.ft.lb |
| Design | N |
| Insulation Class | F |
| Service factor | 1.25 |
| Temperature rise | 80 K |
| Duty Cycle | 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 | B3L(E) |
| Rotation¹ | Both (CW and CCW) |
| Noise level² | 63.0 dB(A) |
| Approx. weight³ | 1484 lb |
Efficiency
| 50% | 92.0 |
|---|---|
| 75% | 92.2 |
| 100% | 92.4 |
Power factor
| 50% | 0.59 |
|---|---|
| 75% | 0.71 |
| 100% | 0.77 |
Electric Motors
| Frame | 280S/M |
|---|---|
| Output | 50 HP (37 kW) |
| Number of Poles | 8 |
| Frequency | 50 Hz |
| Rated speed | 740 rpm |
| Slip | 1.33 % |
| Rated voltage | 380 V |
| Rated current | 77.5 A |
| L. R. Amperes | 465 A |
| LRC | 6.0 |
| No load current | 31.6 A |
| Rated torque | 355 ft.lb |
| Locked rotor torque | 160 % |
| Breakdown torque | 200 % |
| Locked rotor time | 91s (cold) 51s (hot) |
| Moment of inertia (J) | 66.9 sq.ft.lb |
| Design | N |
| Insulation Class | F |
| Service factor | 1.00 |
| Temperature rise | 80 K |
| Duty Cycle | 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 | B3L(E) |
| Rotation¹ | Both (CW and CCW) |
| Noise level² | 59.0 dB(A) |
| Approx. weight³ | 1484 lb |
Efficiency
| 50% | 89.0 |
|---|---|
| 75% | 91.0 |
| 100% | 93.0 |
Power factor
| 50% | 0.65 |
|---|---|
| 75% | 0.74 |
| 100% | 0.78 |
Electric Motors
| Frame | 280S/M |
|---|---|
| Output | 50 HP (37 kW) |
| Number of Poles | 8 |
| Frequency | 50 Hz |
| Rated speed | 740 rpm |
| Slip | 1.33 % |
| Rated voltage | 400 V |
| Rated current | 74.6 A |
| L. R. Amperes | 448 A |
| LRC | 6.0 |
| No load current | 34.0 A |
| Rated torque | 355 ft.lb |
| Locked rotor torque | 180 % |
| Breakdown torque | 229 % |
| Locked rotor time | 81s (cold) 45s (hot) |
| Moment of inertia (J) | 66.9 sq.ft.lb |
| Design | N |
| Insulation Class | F |
| Service factor | 1.00 |
| Temperature rise | 80 K |
| Duty Cycle | 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 | B3L(E) |
| Rotation¹ | Both (CW and CCW) |
| Noise level² | 59.0 dB(A) |
| Approx. weight³ | 1484 lb |
Efficiency
| 50% | 89.0 |
|---|---|
| 75% | 91.0 |
| 100% | 93.0 |
Power factor
| 50% | 0.62 |
|---|---|
| 75% | 0.72 |
| 100% | 0.77 |
Electric Motors
| Frame | 280S/M |
|---|---|
| Output | 50 HP (37 kW) |
| Number of Poles | 8 |
| Frequency | 50 Hz |
| Rated speed | 742 rpm |
| Slip | 1.07 % |
| Rated voltage | 415 V |
| Rated current | 72.8 A |
| L. R. Amperes | 437 A |
| LRC | 6.0 |
| No load current | 36.1 A |
| Rated torque | 354 ft.lb |
| Locked rotor torque | 200 % |
| Breakdown torque | 250 % |
| Locked rotor time | 75s (cold) 42s (hot) |
| Moment of inertia (J) | 66.9 sq.ft.lb |
| Design | N |
| Insulation Class | F |
| Service factor | 1.00 |
| Temperature rise | 80 K |
| Duty Cycle | 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 | B3L(E) |
| Rotation¹ | Both (CW and CCW) |
| Noise level² | 59.0 dB(A) |
| Approx. weight³ | 1484 lb |
Efficiency
| 50% | 89.0 |
|---|---|
| 75% | 91.0 |
| 100% | 93.0 |
Power factor
| 50% | 0.59 |
|---|---|
| 75% | 0.70 |
| 100% | 0.76 |
Features
| Frame Material | Cast Iron |
|---|---|
| Impregnation Method | Constant Resin Flow |
| Regreasing System | At Drive end and Non-drive end |
| Main terminal box hole | 2xM63x1,5 |
| Terminal Block | BMC - 6 pins |
| Shaft Locking Device | Without |
| Drain | Rubber, automatic |
| Shaft Material | SAE 1040/45 Carbon Steel |
| Painting | RAL 5009 203A (ISO 12944 - C2) |
| Grounding Lugs | Double |
| Fan Cover material | Cast Iron |
| Tropicalized Painting | Without |
| Fan material | Plastic |
| Bearing cap | Yes- Bearing Cap |
| Balancing Method | 1/2 Key |
| Drip Cover | Without |
| Overload protector (phenolic) | Without overload protector |
| Connection Cables Quantity | 6 |
