NEW TO LEESON
LEESON Explosion Proof Motor, 0.75 HP, 3 Ph, 60 Hz, 230/460 V, 1800 RPM, 56C Frame, EPNV - Y603
Part #:056H17E5304
Catalog #:Y603
Model #:56H17E5304B
KEY FEATURES
- IRIS® inverter rated insulation system meets NEMA MG1 Part 31. No lead lengths restrictions on 460V systems or less (as noted).
- Normally closed thermostats (one per phase, Class F) act as a thermal protector to turn the controller off so no damage occurs to the motor.
- Meets T3B temperature code with a maximum surface temperature of 329° F.
- Constant torque operation from 0 to base speed on vector drive, including TEFC (On volts/hertz drives, TEFC motors are limited to 20:1 constant torque)
- LEESON® motors. Motors and solutions at our core™
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Product Specifications
Nameplate Specifications
| Phase: | 3 | Output HP: | 0.75 Hp |
| Output KW: | 0.56 kW | Voltage: | 230/460 V |
| Speed: | 1725 rpm | Service Factor: | 1.0 |
| Frame: | 56C | Enclosure: | Explosion Proof Non Ventilated |
| Thermal Protection: | Thermostat | Efficiency: | 82.5 % |
| Ambient Temperature: | 40 °C | Frequency: | 60 Hz |
| Current: | 2.4/1.2 A | Power Factor: | 73.5 |
| Duty: | Continuous | Insulation Class: | F |
| Design Code: | INV | KVA Code: | P |
| Drive End Bearing Size: | 6203 | Opp Drive End Bearing Size: | 6203 |
| UL: | UL Listed And CSA Certified | CSA: | Y |
| CE: | N | IP Code: | 54 |
| Number of Speeds: | 1 | Hazardous Location: | DIV 1 EXP PROOF CL I GR CD CL II GR FG T3B |
Technical Specifications
| Electrical Type: | Squirrel Cage Inverter Duty | Starting Method: | Inverter Only |
| Poles: | 4 | Rotation: | Reversible |
| Resistance Main: | 17.5 Ohms | Mounting: | Rigid Base |
| Motor Orientation: | Horizontal | Drive End Bearing: | Ball |
| Opp Drive End Bearing: | Ball | Frame Material: | Rolled Steel |
| Shaft Type: | NEMA 56 | Overall Length: | 13.47 in |
| Frame Length: | 7.81 in | Shaft Diameter: | 0.625 in |
| Shaft Extension: | 2.06 in | Assembly/Box Mounting: | F3 |
| Inverter Load: | CONSTANT 1000:1 |
General Specifications
| UPC: | 722856025050 | Weight: | 38.00 LB |
| Packaged Length: | 16.12 IN | Packaged Width: | 10.25 IN |
| Packaged Height: | 9.12 IN | HTC: | 8501.51.4040 |
| Country of Origin: | Mexico |
Speed Characteristics
| Curvepoint | Current (Amps) | Current (%) | Torque (ft-lbs) | Torque (%) | Speed (RPM) | Rated Output (KW) | Power Factor (%) | Rated Output (Hp) |
| Pull-Up | 11.50 | 958.0 | 9.20 | 409.0 | 500 | 0.75 | ||
| Break-Down | 7.00 | 583.0 | 10.20 | 453.0 | 1,140 | 80.0 | 0.75 | |
| Locked-Rotor | 12.00 | 1,000.0 | 9.80 | 436.0 | 0 | 65.0 | 0.75 | |
| 2/3 | 10.50 | 875.0 | 9.50 | 422.0 | 750 | 0.75 | ||
| No Load | 0.75 | 63.0 | 0.00 | 0.0 | 1,800 | 0.75 | ||
| 1/3 | 11.80 | 983.0 | 9.00 | 400.0 | 200 | 0.75 | ||
| Full Load | 1.20 | 100.0 | 2.25 | 100.0 | 1,755 | 0.75 |
Load Characteristics
| % of Rated Load | 0 % | 25 % | 50 % | 75 % | 100 % | 125 % | 150 % | 200 % |
| Current (Amps) | 0.75 | 0.80 | 0.90 | 1.00 | 1.20 | 1.40 | 0.00 | 0.00 |
| Rated Output (KW) | 0.10 | 0.25 | 0.38 | 0.55 | 0.70 | 0.85 | 0.00 | 0.00 |
| Efficiency (%) | 0.0 | 62.5 | 75.5 | 80.0 | 82.5 | 82.5 | 0.0 | 0.0 |
| Power Factor (%) | 12.0 | 35.0 | 52.0 | 65.0 | 73.5 | 79.0 | 0.0 | 0.0 |
| Speed (RPM) | 1,800 | 1,785 | 1,775 | 1,765 | 1,755 | 1,740 | 0 | 0 |
| Temp. Rise @ FL | 0.0 | 0.0 | 0.0 | 0.0 | 65.0 | 0.0 | 0.0 | 0.0 |
| Torque (ft-lbs) | 0.00 | 0.55 | 1.10 | 1.70 | 2.25 | 2.80 | 0.00 | 0.00 |

