Technical data

Manual – Gear Units and Gearmotors

127

Low-noise fan guard

Project Planning for AC Motors

Protection

canopy C

Liquids and/or solid foreign objects can penetrate the air outlet openings of motors in a

vertical mounting position with their input shaft pointing downwards. SEW-EURODRIVE

offers the motor option protection canopy C for this purpose.

7.16 Low-noise fan guard

The noise of the gearmotor is usually louder due to the fan guards of the drives.

SEW-EURODRIVE offers the "low-noise fan guard" option for motor sizes DT71D to

DV132S. This guard can reduce the noise level by about 3 db(A) compared to the

standard version.

This option is only available for motors and brake motors. The "low-noise fan

guard"option cannot be combined with encoders or forced cooling fans. The option is

indicated by the letters "LN" in the type designation.

05665AXX

Figure 64: AC motor with protection canopy