Electric Motors
Frame | 250S/M |
---|---|
Output | 75 HP (55 kW) |
Number of Poles | 4 |
Frequency | 50 Hz |
Rated speed | 1475 rpm |
Slip | 1.67 % |
Rated voltage | 380 V |
Rated current | 100 A |
L. R. Amperes | 790 A |
LRC | 7.9 |
No load current | 31.8 A |
Rated torque | 263 ft.lb |
Locked rotor torque | 250 % |
Breakdown torque | 229 % |
Locked rotor time | 25s (cold) 14s (hot) |
Moment of inertia (J) | 26.3 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 | 64.0 dB(A) |
Approx. weight³ | 1139 lb |
(1) Looking the motor from the shaft end.; (2) Measured at 1m and with tolerance of +3dB(A).; (3) Approximate weight, subject to be changed after manufacturing process.; (4) At 100% of full load.
Efficiency
50% | 75% | 100% |
---|---|---|
94.7 | 94.9 | 95.1 |
Power factor
50% | 75% | 100% |
---|---|---|
0.75 | 0.83 | 0.88 |
Frame | 250S/M |
---|---|
Output | 75 HP (55 kW) |
Number of Poles | 4 |
Frequency | 50 Hz |
Rated speed | 1480 rpm |
Slip | 1.33 % |
Rated voltage | 400 V |
Rated current | 96.9 A |
L. R. Amperes | 766 A |
LRC | 7.9 |
No load current | 34.0 A |
Rated torque | 263 ft.lb |
Locked rotor torque | 280 % |
Breakdown torque | 250 % |
Locked rotor time | 25s (cold) 14s (hot) |
Moment of inertia (J) | 26.3 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 | 64.0 dB(A) |
Approx. weight³ | 1139 lb |
(1) Looking the motor from the shaft end.; (2) Measured at 1m and with tolerance of +3dB(A).; (3) Approximate weight, subject to be changed after manufacturing process.; (4) At 100% of full load.
Efficiency
50% | 75% | 100% |
---|---|---|
94.6 | 95.0 | 95.3 |
Power factor
50% | 75% | 100% |
---|---|---|
0.71 | 0.81 | 0.86 |
Frame | 250S/M |
---|---|
Output | 75 HP (55 kW) |
Number of Poles | 4 |
Frequency | 50 Hz |
Rated speed | 1480 rpm |
Slip | 1.33 % |
Rated voltage | 415 V |
Rated current | 94.4 A |
L. R. Amperes | 746 A |
LRC | 7.9 |
No load current | 36.0 A |
Rated torque | 263 ft.lb |
Locked rotor torque | 300 % |
Breakdown torque | 270 % |
Locked rotor time | 25s (cold) 14s (hot) |
Moment of inertia (J) | 26.3 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 | 64.0 dB(A) |
Approx. weight³ | 1139 lb |
(1) Looking the motor from the shaft end.; (2) Measured at 1m and with tolerance of +3dB(A).; (3) Approximate weight, subject to be changed after manufacturing process.; (4) At 100% of full load.
Efficiency
50% | 75% | 100% |
---|---|---|
94.4 | 94.9 | 95.4 |
Power factor
50% | 75% | 100% |
---|---|---|
0.68 | 0.79 | 0.85 |
Frame | 250S/M |
---|---|
Output | 75 HP (55 kW) |
Number of Poles | 4 |
Frequency | 60 Hz |
Rated speed | 1780 rpm |
Slip | 1.11 % |
Rated voltage | 460 V |
Rated current | 85.1 A |
L. R. Amperes | 698 A |
LRC | 8.2 |
No load current | 32.0 A |
Rated torque | 218 ft.lb |
Locked rotor torque | 330 % |
Breakdown torque | 310 % |
Locked rotor time | 48s (cold) 27s (hot) |
Moment of inertia (J) | 26.3 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 | 68.0 dB(A) |
Approx. weight³ | 1139 lb |
(1) Looking the motor from the shaft end.; (2) Measured at 1m and with tolerance of +3dB(A).; (3) Approximate weight, subject to be changed after manufacturing process.; (4) At 100% of full load.
Efficiency
50% | 75% | 100% |
---|---|---|
93.6 | 94.5 | 95.4 |
Power factor
50% | 75% | 100% |
---|---|---|
0.67 | 0.79 | 0.85 |
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 |
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