LEESON Brakemotors, Three Phase, TEFC, C Face With Base
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LEESON Brakemotors, Three Phase, TEFC, C Face With Base


Leeson brake motors are used on conveyors, machine tools, speed reducers, door operators and hoists which require a quick stop. They offer braking as a safety measure when power is cut abruptly.

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LEESON 122250A
LEESON 140639B
LEESON 114155C
LEESON 119563D
LEESON 122248E
LEESON 122249F
LEESON 110670G
LEESON 110669H
LEESON 110671I
StyleModelEnclosureFrameFull Load AmpsHPHzInsulation ClasskWMotor Thermal ProtectionPrice (ex. VAT)
A
122250		TEFC145TC6-5.8 / 2.92 / 1 1/250/60F1.49 / 1.129700K46€1,842.86
B
140639		TEFC215TC26.8 / 13.410 / 7 1/250/60F7.50 / 5.60-€4,671.90
C
114155		TEFC56C2.8 / 1.43/460B0.56-€1,319.26
D
119563		TEFC56C3.2-3.2 / 1.6160F0.759700K46€1,611.86
E
122248		TEFC143TC3.2 / 1.6160F0.759700K46-33€1,620.99
F
122249		TEFC145TC4.8 / 2.41 1/2 / 150/60B1.12 / .759700K46-33€1,781.84
G
110670		TENV56C2.0-1.8 / .91/260B.37-€1,127.62
H
110669		TENVC56C1.4-1.3 / .651/360B.246-€1,004.99
I
110671		TENV56C2.7-2.5 / 1.253/460F.56-€1,319.26

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 feature durable steel frame construction for structural rigidity and Polyrex EM lubrication to resist oil & water leakage at temperatures up to 40 degrees Celsius.
  • They have a drive-end, C-Face endshield with rigid base mounting for quick installation.
  • These NEMA Design B 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.
  • These motors produce torque up to 10 hp at 50 / 60Hz power supply.
  • They come with a TEFC / TENV enclosure to ensure protection from dust, water and air-borne contaminants.
  • These triple-phase units have a power Off manual release for user convenience in case of a power failure. The load is automatically stopped when power is turned Off.
  • They offer continuous duty operation at speeds up to 1800 rpm.

Standards and Approvals

  • NEMA
  • IEC

Frequently Asked Questions

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.

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.

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