T-T Electric  >  Products  >  DC Motors  >  LAK 4112-4280   > Output data - General

Select motor frame size against voltage, output and speed. For intermediate output, take the nearest higher output listed under the next frame size. For intermediate speed, take the next lower speed listed within the output required.

The output tables are based on:
   • Cooling forms IC06/IC17/IC37/IC86W
   • The armature circuit resistance listed is for duty warm condition
   • The inductance listed is for armature circuit
   • Motor supply from 3-phase fully controlled thyristor

Constant power/constant torque.
The full field or base speed and maximum speed through field control with constant output is listed for each winding
Armature voltage: For -10% the output and speed is proportional to the voltage
For higher shunt field ranges, please refer to us.
With a combination of armature voltage/shunt control, greater constant power ranges can be obtained

Duty cycles.
Ratings: All outputs are duty type S1 and motors are fed from a 3-phase fully controlled thyristor where the form factor is 1.05

Field Windings.
All motors in the output tables have separate excitation, the field being shunt wound
Compound or series winding can be supplied upon request
Motors with compound or series winding may have nominal data which differ from those shown in the output tables
Compensation winding for LAK4280 upon request

Armature voltage.
For other armature voltages, please contact us

Ambient temperature and altitude.
Outputs are based on maximum ambient temperature of 40°C and motor located no higher than 1000 metres above sea level
If ambient temperature and/or altitude is higher, please contact us

NEMA output data.
Nema catalogue available on request



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