Comair Fan Grounding - Part 1700305A

Electromechanical Fans, Thermal Management
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Hi all,

I am hoping learn more about a fan from Comair, part number 1700305A. In the datasheet, there is a call out to a specific “GROUND CONNECTION”. What is the reason for the ground connection to be separate here (unlike most fans which are grounded through the return path)? Is it necessary to ground via this point, or can the fan be grounded through mechanical mounting to a ground plane in our design? Thanks in advance for the help!

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Greetings,

I’m having trouble finding the P/N referenced, but the I presume that the fan in question is AC line powered and has a conductive frame. The chassis ground connection indicated is provided as a convenience, and does not necessarily need to be used if adequate bonding to the earth/chassis ground of the equipment in which it is installed is otherwise provided for.