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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.

Filter
LEESON 122250.00A
LEESON 110669.00B
LEESON 110670.00C
LEESON 110671.00D
LEESON 114155.00E
LEESON 119563.00F
LEESON 122249.00G
LEESON 140639.00H
LEESON 122248.00I
StyleModelVoltageHpNameplate RpmDesignFrameBrake RatingInsulation ClassPower FactorPrice
A
122250.00		208-230/460V2 hp1745 RPMB, L145TC10 lbs.-ft.Class F75.6€1,840.96
B
110669.00		208-230/460V33/100 hp1800 RPMLC56C-Class B66€1,004.12
C
110670.00		208-230/460V1/2 hp1800 RPMB, L56C-Class B67€2,104.76
D
110671.00		208-230/460V3/4 hp1800 RPMB, L56C-Class F70€1,318.13
E
114155.00		208-230/460V3/4 hp1725 RPMB, K56C-Class B65€1,318.13
F
119563.00		208-230/460V1 hp1760 RPMB, N56C6 lbs.-ft.Class F68.5€1,610.03
G
122249.00		230/460V1 1/2 hp1750 RPMB, L145TC10 lbs.-ft.Class B67.7€2,764.47
H
140639.00		230/460V10 hp1800 RPMB, H215TC-Class F77€4,805.32
I
122248.00		230/460V1 hp1800 RPMB, N143TC-Class F68.5€2,864.62

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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