Optimised design for Nord Drivesystems IE3 asynchronous motors

Nord Drivesystems has optimised the design of its proven IE3 asynchronous motors. The model maintenance applies to numerous details that further improve the electric motors’ function, assembly and operation.

The facelift of the IE3 asynchronous motors from Nord involves no change of electrical data and outer dimensions, so that they can be seamlessly used without adjustments in any existing application with Nord IE3 motors. The optimised cooling fin shape, an assembly-optimised fan and a new modern fan cowl enable a better heat dissipation and assembly of the motors. The fan cowl can be simply assembled in case a motor mounted frequency inverter is used. The new cooling fins design also enables an unhindered airflow around the terminal box, which has been revisited without sharp edges and corners and has reinforced feet for a better motor stability.

Another important detail is the optimised incremental encoder mounting: due to the fan cowl, the encoder is fully shock-resistant and no more within the airflow, which further improves the cooling power. Retrofit mounting is also possible due to a plug-on shaft.

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