AKMH™ Technical Guide

General Technical Data

Ambient Temperature: 0…+25° C for site altitude up to 1000 m amsl (at rated values).

It is vital to consult our applications department for ambient temperatures

above 40° C and/or any enclosed environment.

Power De-rating:

(currents and torques)

1% / °C in range 40° C…50° C up to 1000 m amsl for site altitude above 1000 m amsl and 40° C

» 6% up to 2000 m amsl

» 17% up to 3000 m amsl

» 30% up to 4000 m amsl

» 55% up to 5000 m amsl

For site altitudes above 1000 m amsl, no de-rating with temperature reduction of 10° C / 1000 m

Temperature De-rating: If the application requires de-rating due to lower motor surface temperature,

please contact our applications department.

Ball-bearing Life: ≥ 20.000 operating hours

Phasing Diagram – All Motors

• When the motor is rotated C.W. (viewed from drive shaft end), the

following Bemf voltage waveforms result:

• Voltage phase-U, leads Voltage phase-V, by 120-degrees

• Voltage phase-V, leads Voltage phase-W, by 120-degrees

• Voltage phase-W, leads Voltage phase-U, by 120-degrees