LEESON Constant Torque Fan And Blower Motors, Three Phase, TEFC 460V Multi Speed, Rigid Base
Leeson HVAC fan and blower motors are suitable for industrial ventilation / exhaustion systems and centrifugal pumps. These multi-speed motors feature a single winding to change the speed of the motor and maintain a constant torque at 460V throughout the motor operation.
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A
B| Style | Model | Hp | Full Load Amps | Frame | Shaft Dia. | Shaft Length | Power Factor | Nema Design | Output Kw | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | 131471.00 | 2 hp, 1 hp | 2.9A | 184T | 1 1/8" | 2 3/4" | 88.6, 49.5 | B, H | 1.49/0.75 kW | €1,692.28 | |
| B | 140445.00 | 5 hp, 2 1/2 hp | 6.7/7A | 215T | 1 3/8" | 3 3/8" | 88.8, 48.8 | H | 3.7/1.87 kW | €2,508.15 |
Features
- They come with a totally enclosed fan-cooled enclosure which circulates airflow on the motor windings through an external fan (attached to the motor) to prevent overheating during continuous operation.
- These motors have steel frames to offer structural rigidity and their three-phase design allows motors to run at a maximum speed of 1800 rpm.
- They feature rigid / foot mounting to allow a secure attachment with the equipment and dampen excessive noise & vibrations.
Standards and Approvals
- CSA
- UL
Frequently Asked Questions
How to maintain a motor?
To maintain a motor, use well-lubricated bearings to keep the motor running smoothly and efficiently.
What is the difference between a rotor and a stator?
Rotor is the rotating unit of a motor, while a stator is the stationary portion of the magnetic circuit and associated windings.
What is a constant torque?
In constant torque applications, as the speed changes, the load torque remains constant and the horsepower changes linearly. This can be seen mostly in blowers, fans, conveyors, crushers and constant displacement pumps.
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