The new cooling concept integrates tube cooling into the motors’ rib-cooled housing. The cooling effect is improved by a fan which, unlike conventional designs, reduces the motor’s internal temperature, increasing performance by up to 15% and extending the operating life of components, without affecting the size of the motor.
The motors can be used in areas where there is no danger of explosions (safe areas) or where explosions are not likely to occur (explosion protection zone 2), as well as being available in ignition-proof types Ex ec and Ex tc.
The air-cooled motors extend Siemens’ HV motors beyond the existing flameproof and water-jacket-cooled designs.