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LEESON Brakemotors, Three Phase, TEFC, C Face Less Base
Leeson brake motors offer braking as a safety measure when power is cut abruptly. They are used on conveyors, machine tools, speed reducers, door operators and hoists which require a quick stop.
A
B
C
D
E
F
G
H
I
J| Style | Model | Design | Enclosure | Frame | Full Load Amps | HP | Hz | Insulation Class | kW | Price (ex. VAT) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | 114158 | - | TENV | 56C | 1.4-1.3 / .65 | 1/3 | 60 | B | .246 | €1,233.98 | |
| B | 141308 | A | TEFC | 213TC | 21.4 / 10.7 | 7.5 | 60 | F | 5.60 | €4,433.52 | |
| C | 114159 | B | TEFC | 56C | 2 / 1 | 1/2 | 60 | B | 0.37 | €1,342.34 | |
| D | 114160 | B | TEFC | 56C | 2.8 / 1.4 | 3/4 | 60 | B | 0.56 | €1,574.91 | |
| E | 119564 | B | TEFC | 56C | 3.2-3.2 / 1.6 | 1 | 60 | F | 0.75 | €1,895.15 | |
| F | 122251 | B | TEFC | 143TC | 3.2-3.2 / 1.6 | 1 | 60 | F | 0.75 | €1,905.50 | |
| G | 122253 | B | TEFC | 145TC | 6-5.8 / 2.9 | 2 | 60 | F | 1.49 | €2,199.51 | |
| H | 141309 | B | TEFC | 215TC | 28.8-26.8 / 13.4 | 10 / 7 1/2 | 50/60 | F | 5.6 / 7.5 | €5,615.73 | |
| I | 119565 | C | TEFC | 56C | 4.6-4.8 / 2.4 | 1 1/2 / 1 | 50/60 | F | 1.12 / 0.75 | €2,125.65 | |
| J | 122252 | C | TEFC | 145 C | 4.6-4.8 / 2.4 | 1.5 | 60 | F | 1.12 | €2,140.84 |
Working Mechanism
- Brake motors use an electromagnetic field for powering and braking the motor.
- They function by pushing a magnetic pole rotor through the applied current.
- The poles of the stator (surrounding the rotor) apply force to turn the shaft.
- When static AC or DC current is injected into the unit, the poles of the stator become static and stop the rotor.
Features
- Leeson brake motors come with a TEFC / TENV enclosure to ensure protection from dust, water and air-borne contaminants.
- They have a drive-end, C-face endshield with less base for quick installation.
- These NEMA Design A, B or C units offer premium Class B / F insulation for temperature control.
- The brakes of these models are fail-safe and spring-set, owing to dual voltage brake coils.
- They feature durable steel frame construction for structural rigidity and Polyrex EM lubrication to resist oil & water leakage at temperatures up to 40 degrees Celsius.
- These triple-phase units have a power-off manual release for user convenience in case of power failure. The load is automatically stopped when power is cut off.
- They offer continuous duty operation at speeds up to 1800 rpm.
- These IP43 motors produce torque up to 10 hp at 50 / 60Hz power supply.
Standards and Approvals
- NEMA
- IEC
Frequently Asked Questions
What is the difference between TENV and TEFC motors?
Totally enclosed non-ventilated (TENV) motors are designed without air openings and are ideal for applications where frequent sanitising or cleaning is required. TEFC (totally enclosed fan-cooled) motors come with an external fan to circulate outside air to the motor.
What is the difference between single, double and triple-phase motors?
- Single-phase motor: Electricity flows through a single conductor.
- Double-phase motor: Electricity flows through 4-wire conductors (2 for each phase).
- Triple-phase motor: Electricity flows through 3 separate conductors.
What do Class B and F insulation mean?
These motors have Class B or F insulation for temperature control. Class B insulated motors can handle temperatures up to 130 degrees C and Class F motors can withstand a maximum temperature of 105 degrees C.
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