This is in a non-accessible area at the rear of a 19" rack-mount power
supply.  Only service or maintenance people can access.  Also, the knock out
cannot be pushed inward on the chassis, only outward when the top cover is
removed.

-doug

 
=================================
Douglas E. Powell
Regulatory Compliance Engineer
Advanced Energy Industries, Inc.
1625 Sharp Point Dr.
Ft. Collins, Co 80525

mailto:doug.pow...@aei.com
www.advanced-energy.com
=================================



-----Original Message-----
From: rbus...@es.com [mailto:rbus...@es.com]
Sent: Thursday, March 15, 2001 2:01 PM
To: doug.pow...@aei.com; emc-p...@majordomo.ieee.org
Subject: RE: Electrical knock out - force to remove


Is this outlet box accessible to non trained persons? In other words is it
mounted outside of an enclosure? A few days ago it was brought to my
attention that any outlet box with knockouts cannot be used in accessible
areas. This includes the OUTSIDE of a wall where conduit is routed. These
knockout boxes are designed with the assumption that they will be inside a
wall or other enclosure.

Rick

-----Original Message-----
From: POWELL, DOUG [mailto:doug.pow...@aei.com]
Sent: Thursday, March 15, 2001 1:51 PM
To: emc-p...@majordomo.ieee.org
Subject: Electrical knock out - force to remove



Hello group,

I have a product that uses optional 1/2" half-shear electrical knock outs
for conduit connections.  Can anyone direct me to specific requirements on
how much or how little force is required to remove these knock outs?  Is a
tool required or not if it only pushes outward?


thanks,

-doug

 
=================================
Douglas E. Powell
Regulatory Compliance Engineer
Advanced Energy Industries, Inc.
1625 Sharp Point Dr.
Ft. Collins, Co 80525

mailto:doug.pow...@aei.com
www.advanced-energy.com
=================================


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