The LOHER VARIO Ex d(e) series has a welded steel enclosure for the highest degree of variability and versatility. Flange rings at the ends of the enclosure increase the torsional stiffness and ensure a vibration-proof mechanical design. The steel version allows various bearing concepts, dimensions can be adapted and a wide range of instruments can be mounted.
The surface cooling using flat ribs combined with a defined inner cooling circuit with shaft-mounted fan inside the motor ensure optimum motor utilization. The copper bar rotors used as standard allow starting and operating parameters to be optimized for each and every application. With power ratings up to 3150 kW, these motors are mainly used for conveying, transporting and compressing. The rugged version allows safe, reliable and straightforward operation in Zone 1 both for line and converter operation.
