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LEESON 50 Hertz Motors, Single Phase, TEFC, C Face Less Base
Leeson C-Face less-base 50 Hz motors are single-phase units utilising a capacitor to offer extra power during startup for maximum torque. They are ideal for medium-to-high torque requirements in conveyor, auger drive, ventilation, shop tool and pump applications.
A
B
C
D
E
F| Style | Model | Frame | Full Load Amps | HP | Insulation Class | Length Less Shaft | Motor Thermal Protection | Nameplate RPM | RPM Range | Price (ex. VAT) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | 113921 | 56C | 6.4/3.2 | 1/3 | B | 9.25" | Manual | 1425 | 1401-1500 | €710.16 | |
| B | 113922 | 56C | 8.2/4.1 | 1/2 | B | 9.75" | Manual | 1425 | 1401-1500 | €813.00 | |
| C | 113923 | 56C | 11.8/5.9 | 3/4 | F | 10.25" | Manual | 1425 | 1401-1500 | €928.94 | |
| D | 113924 | 56C | 12.8/6.4 | 1 | F | 10.75" | Manual | 1425 | 1401-1500 | €977.95 | |
| E | 113925 | 56C | 17.2/8.6 | 1.5 | F | 11.75" | Manual | 1425 | 1401-1500 | €1,184.29 | |
| F | 120990 | 145TC | 17.2/8.6 | 2 | F | 11.75" | None | 2850 | 1801-3000 | €1,254.69 |
Working Mechanism
- Electric motors convert electrical energy into mechanical energy for generating motion.
- Force is produced within the motor through the interaction between a winding alternating (AC) or direct (DC) current and the magnetic field.
Features
- Leeson 50 Hz motors produce torque up to 2 hp on a 50 Hz power supply.
- These energy-saving motors feature durable rolled steel frame construction for structural rigidity and less-base C-Face mounting for ease of installation.
- They are equipped with a TEFC enclosure to permit the cooling air to flow through the motor, thereby preventing overheating.
- These units include easy-to-read nameplates for quick identification and high-quality ball bearings to deliver speeds up to 2850 rpm.
- They are available in Class B and F insulation types to withstand temperatures up to 40 degrees C.
Standards and Approvals
- CSA
- UL
- IEC IP54
- NEMA
Frequently Asked Questions
What is the difference between single, double and triple-phase motors?
- Single-phase motor: Current flows through a single conductor.
- Double-phase motor: Current flows through 4-wire conductors (2 for each phase).
- Triple-phase motor: Current flows through 3 separate conductors.
Do these motors prevent overloads?
Yes, these Leeson motors have a manual reset thermal protector to prevent overloads.
What is the difference between TEBC and TEFC motors?
Totally enclosed blower-cooled (TEBC) motors are virtually identical to TEFC motors with the exception that the motor body is cooled by a separate "blower" positioned on the body rather than by a shaft-mounted fan while the motor is working at a high speed.
What does Class B and F insulation mean?
These motors have Class B or F insulation for temperature control. The Class B insulated motors can handle temperatures up to 130 degrees C and Class F can withstand a maximum temperature of 105 degrees C.
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