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.
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Duty: Continuous , Lubrication: Polyrex EM , Max. Ambient Temp.: 40 , Motor Thermal Protection: 9700K46 , Mounting: Round , Phase: 3 , Rotation: REV , Service Factor: 1.15
Style | Model | Type | kW | Design | Frame | Full Load Amps | HP | Hz | Insulation Class | Price | |
---|---|---|---|---|---|---|---|---|---|---|---|
A | 122251.00 | TF | 0.75 | B | 143TC | 3.2-3.2 / 1.6 | 1 | 60 | F | €2,515.79 | |
B | 122253.00 | TF | 1.49 | B | 145TC | 6-5.8 / 2.9 | 2 | 60 | F | €3,354.17 | |
C | 141308.00 | TF | 5.60 | A | 213TC | 21.4 / 10.7 | 7.5 | 60 | F | €3,925.79 | |
D | 114159.00 | TF | 0.37 | B | 56C | 2 / 1 | 1/2 | 60 | B | €1,188.62 | |
E | 114160.00 | TF | 0.56 | B | 56C | 2.8 / 1.4 | 3/4 | 60 | B | €1,956.28 | |
F | 119564.00 | TF | 0.75 | B | 56C | 3.2-3.2 / 1.6 | 1 | 60 | F | €2,924.92 | |
G | 122252.00 | TF | 1.12 | C | 145 C | 4.6-4.8 / 2.4 | 1.5 | 60 | F | €3,264.44 | |
H | 119565.00 | TF | 1.12 / 0.75 | C | 56C | 4.6-4.8 / 2.4 | 1 1/2 / 1 | 50/60 | F | €2,808.82 | |
I | 141309.00 | TF | 5.6 / 7.5 | B | 215TC | 28.8-26.8 / 13.4 | 10 / 7 1/2 | 50/60 | F | €4,972.61 | |
J | 114158.00 | TN | .246 | - | 56C | 1.4-1.3 / .65 | 1/3 | 60 | B | €1,092.66 |
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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